CHANGELOG.md

# Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project does not adhere to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).

## [Unreleased]

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## [vYYYY.MM] `MMMM YYYY`

### Added

### Changed

### Fixed

### Deprecated

### Removed
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## [v2026.07] `July 2026`

### Added

#### HUSS (Hercules Ultimate Storage System)

Now storage is configurable through a config file residing in `conf/storage.conf` you can create multiple storages with different sizes and control their access through scripts.

This system now requires a storage ID or name passed to the following player commands:

* @storage
* @storeall
* @storagelist
* @clearstorage

The following script commands now requires storage id and access mode:

* openstorage

This changes were implemented in PR #3330 and full documentation can be found in the config file, script docs, and atcomamnd docs.

### Changed

- Changed identifiers named `class`, `delete`, and `new` to `class_`, `delete_`, and `new_` respectively to support compilation as C++ in the future, we highly recommend to change your code to match this change for easier migration to C++ later (#3416)
- Changed ERS to always take ownership of it's given name (#3416)
- Update github actions workflow to work with a hybrid C/C++ compilation (#3416)
- Removed unmaintained/broken apple script for script-checking (#3416)
- Raised MSVC warning level to level 4 (#3416)

### Fixed

- Fixed some potential null dereference errors and silence some other false positives reported by gcc-16 (#3416)
- Fixed a possible buffer overrun in variable expressions missing closing bracket detection in script parser (#3416)
- Removed following warning suppressions and/or fixed their cause (#3416)
  - `-Wdiscarded-qualifiers`
  - `-Wsign-compare`
  - `-Wmissing-field-initializers`
  - `-Wincompatible-pointer-types-discards-qualifiers`
  - `-Wdeprecated-non-prototype`
  - `-Wunused-but-set-variable`
  - `-Wenum-enum-conversion` for clang and `C5287` for MSVC
  - `C4057`
  - `C4310`
  - `C4701`
  - `C4702`
  - `C4701`
- Fixed script-checker wraper using old executable paths before cmake setup (#3416)
- Fixed `setup_env.ps1` using deprecated `gwmi` cmdlet
- Fixed a stale skill tick entry in mob ground skills that doesn't allow overlap can cause a mob to be immune to them indefinitely due to 32bit vs 64bit mixing of tick time (#3418, issue #3417)

## [v2026.06] `June 2026`

### Changed
#### Migration of build system to CMake and Conan for dependency management
We've migrated our build systems from Makefiles, Visual Studio Code solutions and Xcode Projects to a unified build system under CMake which will generate the appropriate build files for your compiler and system.

With this change we're introducing conan as our dependency manager, it will take care of managing 3rdparty dependencies like maraidb, zlib and most of the libraries that were previously added to 3rdparty directory, unless it's either not available on conan and/or modified by us like libconfig where we added certain features to it.

You can know more about how to build hercules now and the changes to the file layouts, in addition to how to use the convenience scripts to setup your environment through our wiki pages at [Building](https://github.com/HerculesWS/Hercules/wiki/Building) and [Installation](https://github.com/HerculesWS/Hercules/wiki/Installation).

This changes were introduced in PR #3413

## [v2026.04] `April 2026`

### Added

- Added support for constants from `item_options.conf` to be exported by constdb2doc.
- Added a unit test for headgear/costume overlapping interaction. (#3397)
- Added script function `F_GetMobNaviList` that allows for displaying a list of mobs, their count and have their names navi linked. (#3406)
- Added Cart Decoration skill quest based on kRO Zero. (#3406)

### Changed

- Migrated `mob_race2_db.txt` to `RaceGroup` field in `mob_db.conf` a conversion script to convert your database can be found at `tools/mob_race2_db_converter.py`. (#3394)
- Migrated `level_panalty.txt` to config format at`level_penalty.conf` a conversion script to convert your database can be found at `tools/level_penalty_converter.py`. (#3393, #3412)

### Fixed

- Fixed a logical flaw in the hateffect script function, where calling it with `enabled = 0` (to remove an effect) would still add the `effectId` to the `hatEffectId` vector if it wasn't already present. (#3349)
- Fixed chat room kicked list not being properly freed after chat room is destroyed. (#3368, issue #787)
- Fixed `GN_SLINGITEM` not working when ammo is in slot 0 in inventory. (#3371)
- Fixed various issued with txt -> conf mob db converter. (#3390, issue #2766)
- Fixed costume overlapping and `noviewid` behavior. (#3397)
- Fixed castle seige type being filled with whatever integer value was read before it when server fails to read it instead of defaulting to `SIEGE_TYPE_FE`. (#3398)
- Fixed Gentle touch reducing max HP more than it should. From `4` % per level to `1` % per level. (#3358)
- Fixed a mix between `sc_type` and `si_type` in `SC_ARMORPROPERTY` with may lead to confusion. (#3410)
- Corrected the assertion in `status_get_sc_icon` on `type` that allowed a buffer overflow. (#3410)
- Fixed a buffer overflow in `test_chunked`. (#3410)
- Fixed random options drop groups doing a size 0 allocation when none is provided in database, this also fixes the size of it being uninitalized. (#3410)

### Other changes

- The `is_quest` argument to `pc->gainexp()` has been changed to a `flags` bitmask enum, in order to allow expansion to different flags. (#3279)
- Fixed the damage increase by STR of `KN_BRANDISHSPEAR` it should increase the ratio by 5 for each STR point, not 1. (#3331)
- Corrected EDP behavior on renewal `Meteor Assault` is no long affected by EDP and `Soul Destroy` is now affected by EDP. (#3350)
- Changed EDP Weapon ATK increase in Renewal to match pre-renewal as it gave more accurate results in tests. (#3350)
- Added an assert to ensure `MAX_PACKET_DB` is within the range of 2 bytes. (#3309)
- Added an alert when plugins tries to add a packet outside of the supported range. (#3309)
- Added `.vs/` folder to `.gitignore`. (#3355)
- Moved from `php-sqllint` to `SQLFluff` to lint SQL files in repository. (#3399)
- Update Visual Studio project files to include latest changes. (#3408)
- Removed CI providers that we no longer use (Appveyor, Travis). (#3410)
- Refactored CI builds to only build for actively supported platform, software and compilers. (#3410)
- Temporary disabled builds that requires a newer version of libpcre until we migrate to it. (#3410)
- Temporary disabled `-Wenum-enum-conversion` and `-fno-finite-math-only` compiling flags. (#3410)
- Implemented a simple block-header for disabled memory manager builds to allow the lookup of allocated memory size. (#3410)
  - This also fixed a buffer overflow in `aReallocZ`.
- Updated CI github actions version and code analyzer version. (#3410)
- Updated sanitizer builds to only load the sanitizer for the targetted server/test decreasing false positive. (#3410)

### Deprecated
- At some point in the future support for MSVC will be completely removed and so is support for windows, the recommended setup for developers on windows is to use WSL with your favorite flavor of linux.
- Xcode project will be removed in the future

Please check [Supported Platforms](https://github.com/HerculesWS/Hercules/wiki/Supported-Platforms) know about our updated support strategy for platforms, compilers and database.

### Rebalance changes

All these changes only affect Renewal. Pre-renewal is unchanged.

#### First classes

- Changes from the 2018.10.31 patch (#3218, issue #2725)

##### Swordsman

- Rebalance of `SM_MAGNUM` (Magnum Break)
  - After skill delay reduced (2 seconds -> 0.5 seconds)
  - (already implemented) Added 2 seconds of Cooldown

##### Merchant

- Rebalance of `MC_LOUD` (Crazy Uproar)
  - Change affected players (Caster-only -> All party members in screen range)
  - Effect changed:
    - Str +4 (kept as is)
    - Extra ATK +30 (new effect)
  - CastTime: None -> 1 second
  - FixedCastTime: None -> 0.5 seconds
  - CoolDown: None -> 30 seconds

##### Magician

- Rebalance of `MG_FIREBOLT` (Fire Bolt)
  - Fixed casting time changed.
    - Old: `(0.4 + (Skill Level × 0.4)) x 0.2` seconds.
    - New: `0.2 + (Skill Level × 0.1)` seconds
  - Variable casting time changed.
    - Old: `(0.4 + (Skill Level × 0.4)) x 0.8` seconds.
    - New: `0.2 + (Skill Level × 0.3)` seconds
  - Global delay of skills changed.
    - Old: `0.8 + (Skill Level × 0.2)` seconds
    - New: `1.4` seconds at all skill levels.
  - Values based on iRO Wiki
- Rebalance of `MG_COLDBOLT` (Cold Bolt)
  - Fixed casting time changed.
    - Old: `(0.4 + (Skill Level × 0.4)) x 0.2` seconds.
    - New: `0.2 + (Skill Level × 0.1)` seconds
  - Variable casting time changed.
    - Old: `(0.4 + (Skill Level × 0.4)) x 0.8` seconds.
    - New: `0.2 + (Skill Level × 0.3)` seconds
  - Global delay of skills changed.
    - Old: `0.8 + (Skill Level × 0.2)` seconds
    - New: `1.4` seconds at all skill levels.
  - Values based on iRO Wiki
- Rebalance of `MG_LIGHTNINGBOLT` (Lightning Bolt)
  - Fixed casting time changed.
    - Old: `(0.4 + (Skill Level × 0.4)) x 0.2` seconds.
    - New: `0.2 + (Skill Level × 0.1)` seconds
  - Variable casting time changed.
    - Old: `(0.4 + (Skill Level × 0.4)) x 0.8` seconds.
    - New: `0.2 + (Skill Level × 0.3)` seconds
  - Global delay of skills changed.
    - Old: `0.8 + (Skill Level × 0.2)` seconds
    - New: `1.4` seconds at all skill levels.
  - Values based on iRO Wiki
- Rebalance of `MG_THUNDERSTORM` (Thunder Storm)
  - Fixed casting time changed.
    - Old: `(Skill Level × 0.8) x 0.2` seconds.
    - New: `1.5` seconds at all skill levels.
  - Variable casting time changed.
    - Old: `(Skill Level × 0.8) x 0.8` seconds.
    - New: `2.5 + (Skill Level × 0.2)` seconds
  - Values based on iRO Wiki
- Rebalance of MG_FIREBALL (Fire Ball)
  - Fixed casting time changed.
    - Old: `0.3` seconds at skill level 1-5, `0.2` seconds at skill level 6-10.
    - New: `0.2` seconds at all skill levels.
  - Variable casting time changed.
    - Old: `1.2` seconds at skill level 1-5, `0.8` seconds at skill level 6-10.
    - New: `0.8` seconds at all skill levels.
  - Global delay of skills changed.
    - Old: `1.5` seconds at skill level 1-5, `1.0` seconds at skill level 6-10.
    - New: `0.7` seconds at all skill levels.
- Rebalance of `MG_SOULSTRIKE` (Soul Strike)
  - Global delay of skills changed.
    - Old: `1.2` - `2.7` seconds at skill level 1-10.
    - New: `1.4` seconds at all skill levels.
- Rebalance of `MG_FROSTDIVER` (Frost Diver)
  - Global delay of skill changed: `1.5` s -> `0.5` s

##### Acolyte

- Moved bonus calculation of `AB_CLEMENTIA` and `AB_CANTO` to the `sc_start` logic.
- Rebalance of `AL_BLESSING` (Blessing)
  - Also increases HIT +2 per skill level
  - Clementia also gives additional HIT +1 for each 10 job levels
- Rebalance of `AL_INCAGI` (Increase Agility)
  - Also increases ASPD +1% per skill level
  - Canto Candidus also gives additional ASPD +1% for each 10 job levels
- Rebalance of AL_ANGELUS (Angelus)
  - Now increases +50 MaxHP per SkillLevel
  - The increased HP also gets healed
  - 30s cooldown added
- Rebalance of `AL_HOLYLIGHT` (Holy Light)
  - Fixed casting time changed: `0.4` s -> `0.2` s
  - Variable casting time changed: `1.6` s -> `0.8` s

#### 2-1 Classes

- Rebalance of the 2-1 job skills, implementation based on kRO and kRO zero patch notes from 2018-10-31, iRO Wiki, rAthena and divine pride info, along with some in-game testing. (#3223, part of issue #2727)

##### Knight

- Rebalance of `KN_BOWLINGBASH` (Bowling Bash)
  - Area of effect: `3x3` -> `5x5` centered on target
  - Number of hits changed
    - 2-handed weapons: number of hits depend on number of targets
      - 1 target: 2 hits
      - 2 ~ 3 targets: 3 hits
      - 4 or more targets: 4 hits
    - other weapons: 2 hits
  - Variable cast time removed
  - Knockback increased: 1 cell -> 5 cells
  - 1 second cooldown added
  - After using the skill, caster can't switch weapons for 1 second
  - Gutterline feature removed
- Rebalance of `KN_BRANDISHSPEAR` (Brandish Spear)
  - Changed damage type: Short range physical -> Long range physical
  - Damage formula changed
  - Removed variable cast time
  - Added `0.5` s delay after skill
  - Added `1` s cooldown.
  - SP consumption increased: 12 -> 24.
  - After using the skill, caster can't switch weapons for 1 second
- Rebalance of `KN_TWOHANDQUICKEN` (Two-Hand Quicken)
  - Gives additional `10%` of ASPD (as equipment ASPD)
  - Now gives HIT `+(2 * SkillLevel)`
  - Now gives CRIT `+(2 + SkillLevel)`
-  Rebalance of `KN_CHARGEATK` (Charge Attack)
  - Fixed and variable casttime removed
  - Added Cooldown of `0.5` s

##### Blacksmith
- Rebalance of `BS_ADRENALINE` (Adrenaline Rush)
  - Gives additional ASPD `+10%` to caster and party members (as Equip ASPD)
  - Added HIT `+(5 + 3 * SkillLevel)` effect to caster and party members
- Rebalance of `BS_OVERTHRUST` (Over Thrust)
  - Weapon destruction chance removed
  - Party members bonus changed based on skill level: `5%` / `5%` / `10%` / `10%` / `15%`

##### Assassin
- Rebalance of `AS_SONICBLOW` (Sonic Blow)
  - Attack motion removed
  - Damage formula changed
  - Skill now does `50%` more damage if target has less than `50%` HP
  - Skill modifier is no longer halved when Enchant Deadly Poison is active
  - Global delay reduced: `2` s -> `0.5` s
  - `1` s cooldown added
- Rebalance of `AS_SPLASHER` (Venom Splasher)
  - Damage formula changed
  - Explosion delay changed
  - Cooldown changed
  - Red Gemstone requirement removed
  - Explosion damage no longer splits between targets

##### Wizard
- Rebalance of `WZ_VERMILION` (Lord of Vermilion)
  - Damage formula changed
    - Old: `(100 ~ 330)% x 4 waves` (10 hits each)
    - New: `[400 + (Skill Level x 100)]% x 1 wave` (20 hits)
  - Fixed casting time changed
    - Old: `[2.48 - (Skill Level × 0.08)]` s
    - New: `1.5` s at all skill levels
  - Variable casting time changed
    - Old: `[9.92 - (Skill Level × 0.32)]` s
    - New: `[6.5 - (Skill Level × 0.2)]` s
  - Global delay of skills reduced
    - Old: `5` s at all skill levels
    - New: `1` s at all skill levels
  - `5` s cooldown added
  - Chance of causing blind effect increased
- Rebalance of `WZ_METEOR` (Meteor Storm)
  - Fixed casting time reduced
    - Old: `2.4` s at all skill levels
    - New: `1.5` s at all skill levels
  - Variable casting time reduced
    - Old: `9.6` s at all skill levels
    - New: `6.3` s at all skill levels
  - Global delay of skills reduced
    - Old: `2` ~ `7` s
    - New: `1` s at all skill levels
  - Cooldown added: `[2 + (Skill Level x 0.5)]` s
- Rebalance of `WZ_STORMGUST` (Storm Gust)
  - Fixed casting time changed
    - Old: `[0.8 + (Skill Level * 0.16)]` s
    - New: `1.5` s at all skill levels
  - Variable casting time changed
    - Old: `[3.2 + (Skill Level * 0.64)]` s
    - New: `[4.3 + (Skill Level * 0.2)]` s
  - Global delay of skills reduced
    - Old: `5` s at all skill levels
    - New: `1` s at all skill levels
  - `6` s cooldown added
  - Damage formula changed
    - Old: `(100 + 40 * Skill Level)%` MATK
    - New: `(70 + 50 * Skill Level)%` MATK
- Rebalance of `WZ_JUPITEL` (Jupitel Thunder)
  - Fixed casting time changed
    - Old: `[0.32 + (Skill Level × 0.08)]` s
    - New: `0.5` s at all skill levels
  - Variable casting time changed
    - Old: `[1.28 + (Skill Level × 0.32)]` s
    - New: `[1.8 + (Skill Level × 0.2)]` s
- Rebalance of `WZ_EARTHSPIKE` (Earth Spike)
  - Damage formula changed
    - Old: `100%` per hit
    - New: `200%` per hit
  - Fixed casting time changed
    - Old: `(Skill Level x 0.112)` s
    - New: `0.2 + (Skill Level x 0.2)` s
  - Variable casting time changed
    - Old: `(Skill Level x 0.448)` s
    - New: `0.7 + (Skill Level x 0.5)` s
  - Global delay of skills reduced
    - Old: `0.8 + (Skill Level x 0.2)` s
    - New: `0.9 + (Skill Level x 0.1)` s
- Rebalance of `WZ_HEAVENDRIVE` (Heaven's Drive)
  - Fixed casting time changed
    - Old: `(Skill Level x 0.16)` s
    - New: `0.8` s at all skill levels
  - Variable casting time changed
    - Old: `(Skill Level x 0.64)` s
    - New: `0.9 + (Skill Level x 0.2)` s
  - Global delay of skills reduced
    - Old: `1` s at all skill levels
    - New: `0.5` s at all skill levels

##### Priest
- Rebalance of `PR_MAGNUS` (Magnus Exorcismus)
  - Fixed casting time reduced: `3` s -> `1` s
  - Variable casting time reduced: `12` s -> `4` s
  - Global delay of skills reduced: `4` s -> `1` s
  - Cooldown added: `6` s
  - Skill now deals damage to monsters of all race monsters (instead of only Undead property and Demon race monsters)
  - Skill now deals additional `30%` damage per hits to monsters with:
    - Demon race
    - Shadow property
    - Undead race or property
- Rebalance of `PR_MACEMASTERY` (Mace Mastery)
  - Also gives CRI `+(SkillLevel)` when equipped with Maces
- Rebalance of `PR_SUFFRAGIUM` (Suffragium)
  - Now affects all nearby party members (Range: `18` cells)
  - Now casts on Self instead of Target
  - Effect reduced: `15%` / `30%` / `45%` -> `10%` / `15%` / `20%` cast time reduction
  - Duration changed:
     - Old: `30` s / `20` s / `10` s or when you cast a skill
     - New: `60` s (no longer ends when you cast a skill)
  - SP cost increased: `8` SP -> `45` / `57` / `69` SP
  - `0.5` s fixed casting time added
  -  `1` s variable casting time added
  - Global delay of skills reduced: `2` s -> `1` s
  - `30` s cooldown added
- Rebalance of `PR_IMPOSITIO` (Impositio Manus)
  - Now affects all nearby party members (Range: `18` cells)
  - Now casts on Self instead of Target
  - Effect changed:
    - Old: ATK `+(5 x SkillLevel)`
    - New: ATK/MATK `+(5 x SkillLevel)`
  - Lower level buffs does not replace an active, higher level, one
  - SP cost increased:
    - Old: `10 + (Skill Level x 3)`
    - New: `56 + (Skill Level x 3)`
  - Duration increased: `60` s -> `120` s
  - Fixed casting time added: `0.5` s
  - Variable casting time added: `1` s
  - Global delay reduced: `3` s -> `1` s
  - Cooldown added: `30` s

##### Hunter
- Rebalance of `HT_LANDMINE` (Land Mine), `HT_CLAYMORE` (Claymore Trap) and `HT_BLASTMINE` (Blast Mine)
  - Fixed casting time reduced: `1` s -> `0.3` s
  - Variable casting time added: `0.5` s
- Rebalance of `HT_BLITZBEAT` (Blitz Beat)
  - Damage formula changed
  - Auto Blitz Beat no longer splits the damage among multiple targets

#### 2-2 Classes

- Rebalance of the 2-2 job skills, implementation based on kRO and kRO zero patch notes from 2018-10-31, iRO Wiki, rAthena and divine pride info, along with some in-game testing. (#3229, #3230, #3253, #3279, part of issue #2727)

##### Crusader

- Rebalance of `CR_GRANDCROSS` (Grand Cross)
  - Fixed casting time changed: `1.5` s -> `0.5` s
  - Variable casting time changed: `1.5` s -> `1` s
  - Global delay changed: `1.5` s -> `0.5` s
  - `1` s cooldown added
  - Self damage is removed
- Rebalance of `CR_SHIELDBOOMERANG` (Shield Boomerang)
  - Damage formula changed
    - Old: ATK `(100 + 30 x SkillLevel)%` (Shield weight gives extra flat damage)
    - Now: ATK `(80 x SkillLevel + Shield Weight + Shield Upgrade x 4)%`
- Rebalance of `CR_SPEARQUICKEN` (Spear Quicken)
  - Additionally gives `+10%` of Equipment ASPD

##### Alchemist

- Rebalance of `AM_DEMONSTRATION` (Bomb)
  - Chance of breaking target weapon increased
    - Old: `SkillLevel %`
    - New: `(3 x SkillLevel)%`
  - It now uses basic/default melee damage calculation (instead of special formula)
  - Damage formula changed:
    - Old: `[100% + (Skill Level x 20)]%` (ATK + MATK)
    - New: `[(Skill Level x 60) + (Potion_Research_Lv x 10)]%` ATK
  - Note: the skill code was refactored to move the chance to break the enemy weapon to the `SkillData2` field of the skill DB (affecting both renewal and pre-renewal)
- Rebalance of `AM_ACIDTERROR` (Acid Terror)
  - Chance of breaking target armor increased
    - Old: `3` / `7` / `10` / `12` / `13` %
    - New: `5` / `15` / `25` / `35` / `45` %
  - It now uses basic/default ranged physical damage calculation (instead of special formula)
  - Damage formula changed:
    - Old: `[200% + (Skill Level x 80)]%` (ATK + MATK)
    - New: `[(Skill Level x 200) + (Potion_Research_Lv x 100)]%` ATK
  - The damage effect has been corrected (renewal only) and it is now applied in a bundle of 5 hits instead of a single damage

##### Rogue

- Rebalance of `RG_RAID` (Sightless Mind)
  - SP cost reduced: `20` -> `15`
  - Damage increased
    - Old: `[100 + (Skill Level x 40)]%`
    - New: `[50 + (Skill Level x 150)]%`
  - Damage debuff changed
    - Old: `20%` more damage for `5` seconds or `7` hits
    - New: `30%` more damage (`15%` on boss monsters) for `10` seconds
- Rebalance of RG_BACKSTAP (Back Stab)
  - Skill mechanics changed
    - No longer needs to be behind the target to use skill
    - No longer ignores accuracy check
    - No longer usable from Hiding state
    - Now increases skill Hit by 4 per skill level
    - Number of hits changed:
      - Old: `1` hit
      - New: `2` hits with Dagger, `1` hit with other weapons
  - SP cost reduced: `16` -> `12`
  - Cooldown added: `0.5` s
  - Number of hits changed
  - The bow damage formula has been corrected (affecting both renewal and pre-renewal). Incorrectly, only part of the skillratio value was getting halved when using bows, disregarding the base 100% value.
- Rebalance of `RG_PLAGIARISM` (Intimidate)
  - Also increases Attack Speed by `1%` per Skill Level

##### Sage

- Rebalance of `SA_VOLCANO` (Volcano)
  - Requirement changed: Yellow Gemstone -> Blue Gemstone
  - Effect changed:
    - Old: ATK `+(SkillLevel x 10)`
    - New: ATK/MATK `+(5 + (Skill Level x 5))`
- Rebalance of `SA_DELUGE` (Deluge)
  - Requirement changed: Yellow Gemstone -> Blue Gemstone
- Rebalance of `SA_VIOLENTGALE` (Whirlwind)
  - Requirement changed: Yellow Gemstone -> Blue Gemstone
- Rebalance of `SA_FLAMELAUNCHER` (Endow Blaze)
  - Fixed casting time reduced: `3` s -> `1` s
  - Variable casting time added: `1` s
  - Requirement changed to Scarlet Point
  - Now increases corresponding element magical damage by `1%` per skill level
  - Removed skill failure chance
  - Changed duration
    - Old: `20` minutes (Level 1 ~ 4), `30` minutes (Level 5)
    - New: `5 x (Skill Level + 1)` minutes
- Rebalance of `SA_FROSTWEAPON` (Endow Tsunami)
  - Fixed casting time reduced: `3` s -> `1` s
  - Variable casting time added: 1s
  - Requirement changed to Indigo Point
  - Now increases corresponding element magical damage by `1%` per skill level
  - Removed skill failure chance
  - Changed duration
    - Old: `20` minutes (Level 1 ~ 4), `30` minutes (Level 5)
    - New: `5 x (Skill Level + 1)` minutes
- Rebalance of `SA_LIGHTNINGLOADER` (Endow Tornado)
  - Fixed casting time reduced: `3` s -> `1` s
  - Variable casting time added: `1` s
  - Requirement changed to Yellow Wish Point
  - Now increases corresponding element magical damage by `1%` per skill level
  - Removed skill failure chance
  - Changed duration
    - Old: `20` minutes (Level 1 ~ 4), `30` minutes (Level 5)
    - New: `5 x (Skill Level + 1)` minutes
- Rebalance of `SA_SEISMICWEAPON` (Endow Quake)
  - Fixed casting time reduced: `3` s -> `1` s
  - Variable casting time added: `1` s
  - Requirement changed to Lime Green Point
  - Now increases corresponding element magical damage by `1%` per skill level
  - Removed skill failure chance
  - Changed duration
    - Old: `20` minutes (Level 1 ~ 4), `30` minutes (Level 5)
    - New: `5 x (Skill Level + 1)` minutes
- Rebalance of `SA_AUTOSPELL` (Hindsight)
  - Autocast level changed
    - Old: The Bolt skills will vary in level from level 1 to 3
      - The level 1 version will occur `50%` of the time, level 2 `35%`, and level 3 at `15%`
    - New: Levels of autocasted spells is the half of Hindsight level.
      - If autocasted spells has lower level than half of Hindsight levels, actual skill level will be autocasted instead.
  - Autocast chance changed
    - Old: `7%` - `25%`
    - New: `(Skill Level x 2)%`
  - Usable skills changed
    - Old: Napalm Beat, Fire Bolt, Cold Bolt, Lightning Bolt, Soul Strike, Fire Ball, Frost Diver
    - New: Fire Bolt, Cold Bolt, Lightning Bolt, Soul Strike, Fire Ball, Earth Spike, Frost Diver, Thunderstorm, Heaven's Drive
  - Note: for compatibility with older clients that don't support more than 7 skills at once, the pre-renewal `autospell_db` will be loaded instead, when such packetvers are in use. This behavior can be enforced by defining the `CLASSIC_AUTOSPELL_LIST` preprocessor macro (see `src/config/classes/general.h`).

##### Monk

- Weapon modifier changes
  - Changed the size penalty for Knuckles
    - Small: 100% -> 100%
    - Medium: 75% -> 100%
    - Large:  50% ->  75%
- Rebalance of `MO_TRIPLEATTACK` (Raging Trifecta Blow)
  - Chance of activation changed:
    - Old: `30%` for level 1, less chance for each level above
    - New: Always `30%`
- Rebalance of `MO_CHAINCOMBO` (Raging Quadruple Blow)
  - SP cost reduced by `6` in every level
  - When used with Knuckle class weapon:
    - Skill damage is doubled
    - Number of hits increased to `6` (visual only)
      Example:
         - Non Knuckle: `4` hits of `100` (Total = `400`)
         - Knuckle: `6` hits of `133` (Total = `800`)
- Rebalance of `MO_COMBOFINISH` (Raging Thrust)
  - Damage formula changed
    - Old: `(240 + SkillLevel * 60)%`
    - New: `(450 + SkillLevel * 150 + STR * 5)%`
  - SP Consumption reduced
    - Old: `SkillLevel + 10`
    - New: `SkillLevel + 2`
- Rebalance of `MO_EXTREMITYFIST` (Asura Strike)
  - Change required spheres when used after Raging Thrust or Root
    - Old: `4` spheres were required
    - New: `1` sphere is required
  - Doubles damage when there are `6` or more spirit spheres on cast
  - SP recovery penalty duration reduced: `10` s -> `3` s
- Rebalance of `MO_BLADESTOP` (Root)
  - Cooldown added: `3` s
  - Boss monsters are now affected
  - Duration changed:
    - Old: `10 + (SkillLevel * 10)` seconds
    - New: `10` seconds (`2` seconds on boss monsters)
- Rebalance of `MO_INVESTIGATE` (Occult Impact)
  - Damage formula changed
    - Old: `100 + (SkillLevel * 75)%`
    - New: `(SkillLevel * 100)%`
    - When used on target in Root state, deals `50%` more damage
    - ATK Mastery no longer increases its damage (Not sure if this was added by the Rebalance, but this info only appeared in iRO Wiki after rebalance, so it is assumed it was an undocumented change)
    - A fix for the base ATK (before skill ratio) is included: `(ATK + (HardDef/2))`
- Rebalance of `MO_FINGEROFFENSIVE` (Throw Spirit Sphere)
  - Damage formula changed
    - Old: `(Spirit Spheres x 350)%`
    - New: `[600 + (Skill Level x 200)]%`
  - Casting time changed
    - Old: `(Spirit Spheres + 1)` seconds
    - New: `0.5` seconds fixed casting time + `0.5` seconds variable casting time
  - `1` second cooldown added
  - SP cost increased
    - Old: `10` at all skill levels
    - New: `8 + (Skill Level x 4)`
  - Spirit sphere usage changed
    - Old: `(Skill Level)` spheres
    - New: `1` sphere at all skill levels
  - Skill will deal `50%` more damage on target caught with Root
  - The damage is delivered as a bundle of `5` hits `(TotalDMG / 5)`
- Rebalance of `MO_ABSORBSPIRITS` (Absorb Spirit Sphere)
  - Reduced fixed casting time: `1` s -> `0.5` s
  - Removed variable casting time

##### Bard / Dancer

- Added song groups for Bard/Dancer songs
  - Song effects are now grouped and songs of the same group doesn't overlap with each other. Activating a new effect of the same group ends other existing effects.
  - There are 3 groups:
    1. Bard songs -- song buffs exclusive to bards
    2. Dancer songs -- song buffs exclusive to dancers
    3. Ensemble songs -- song buffs exclusive to ensemble
- Rebalance of `BA_MUSICALSTRIKE` (Melody Strike) and `DC_THROWARROW` (Slinging Arrow)
  - Damage formula changed
    - New: `[110 + (Skill Level x 40)]%` x `2` hits
  - SP cost changed
    - Old: `(Skill Level × 2) - 1`
    - New: `12` at all skill levels
  - Casting time reduced: `1.5` s -> `0.5` s (Based on DivinePride data - see details in the PR and commit messages)
      - Fixed Cast Time of `0.3` s remains untouched
      - Variable Cast Time reduced `1.2` s -> `0.2` s
  - Global skill delay added: `0.3` s
- Rebalance of `BA_MUSICALLESSON` (Music Lessons)
  - Add effect: Attack Speed `+(Skill_Lv)%` with Musical Instruments
  - Add effect: Max SP `+(Skill_Lv)%`
  - No longer gives bonuses to song effects
- Rebalance of `DC_DANCINGLESSON` (Dance Lessons)
  - Add effect: Max SP `+(Skill_Lv)%`
  - Add effect: When using Whips, CRI `+(Skill_Lv)`
  - No longer gives bonuses to dance effects
- Rebalance of `BA_FROSTJOKE` (Unbarring Octave)
  - Global skill delay reduced: `4` s -> `0.3` s
  - `4` s Cooldown added
- Rebalance of `BD_ENCORE` (Encore)
  - Added `0.3` s of global skill delay
  - Added `10` s of cooldown
- Rebalance of `BA_DISSONANCE` (Unchained Serenade)
  - Skill reworked.
    - Now causes Neutral Magical damage in a `9x9` area
    - Can only be used in PvP areas
  - `0.3` s of global delay added
  - `5` s of cooldown added
  - SP cost changed
    - Old: `15 + (SkillLv) x 3`
    - New: `32 + (SkillLv) x 3`
- Rebalance of `BA_POEMBRAGI` (Magic Strings)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect formula changed:
    - Variable cast reduction: `(SkillLv)%`
    - Cast delay reduction: `(SkillLv x 3)%`
    - Caster stats and Music Lessons no longer affects the formula
  - Effect duration changed: `180` s -> `60` s
  - SP Cost changed:
    - Old: `35 + (SkillLv x 5)`
    - New: `60 + (SkillLv x 5)`
  - `1` s casting time added
  - `0.5` s global delay added
  - `20` s cooldown added
- Rebalance of `BA_ASSASSINCROSS` (Impressive Riff)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect formula changed:
    - ASPD:
      - when SkillLv < 10: `+(1 + ((SkillLv - 1) x 2))%`
      - when SkillLv = 10: `+20%`
      - Caster stats and Music Lessons no longer affects the formula
  - Effect duration changed: `180` s -> `60` s
  - SP Cost changed:
    - Old: `35 + (SkillLv x 5)`
    - New: `60 + (SkillLv x 5)`
  - `1` s casting time added
  - `0.5` s global delay added
  - `20` s cooldown added
- Rebalance of `BA_APPLEIDUN` (Song of Lutie)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect changes:
     - MaxHP increase formula changed:
        - SkillLv < 10: `(SkillLv + 9)%`
        - SkillLv = 10: `20%`
     - Removed HP Recovery effect
     - Added effect: HP Regen Rate increase by `(SkillLv x 2)%`
     - Caster stats and Music Lessons no longer affects the formula
  - Effect duration changed: `180` s -> `60` s
  - SP Cost changed:
     - Old: `35 + (SkillLv x 5)`
     - New: `60 + (SkillLv x 5)`
  - `1` s casting time added
  - `0.5` s global delay added
  - `20` s cooldown added
- Rebalance of `BA_WHISTLE` (Perfect Tablature)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect formula changed:
     - Flee increase:
       - when SkillLv < 10: `+(18 + SkillLv x 2)`
       - when SkillLv = 10: `+40`
     - Perfect Dodge increase: `(SkillLv + 1) / 2`
     - Caster stats and Music Lessons no longer affects the formula
  - Effect duration changed: `180` s -> `60` s
  - SP Cost changed:
     - Old: `20 + (SkillLv x 4)`
     - New: `20 + (SkillLv x 2)`
  - `1` s casting time added
  - `0.5` s global delay added
  - `20` s cooldown added
- Rebalance of `DC_UGLYDANCE` (Hip Shaker)
  - Skill reworked:
    - It is now a single AoE effect
    - It no longer keeps the "performance running"
  - SP drain amount changed: `(10 + 2 * (SkillLv))%`
  - SP Cost changed:
     - Old: `20 + (SkillLv x 3)`
     - New: `32 + (SkillLv x 3)`
  - `0.3` s global delay added
  - `5` s cooldown added
- Rebalance of `DC_DONTFORGETME` (Slow Grace)
  - Skill reworked:
    - It is now a single AoE effect which causes a SC on enemies
    - It no longer keeps the "performance running"
  - Effect formula changed:
    - Attack Speed reduction: `((SkillLv x 3) + DEX / 15)%`
    - Move Speed reduction: `((SkillLv x 2) + AGI / 20)%`
    - Note: According to rA, dividing by `15` and `20` was already the right values for RE. And this does seem to match the rebalance formula (at least, is close enough)
  - Can only be used in PvP areas
  - `0.5` s of global delay added
  - `1` s casting time added
  - `20` s of cooldown added
  - SP cost changed
     - Old: `25 + (SkillLv) x 3`
     - New: `35 + (SkillLv) x 3`
  - Area of Effect increased: `7x7` -> `9x9`
- Rebalance of `DC_SERVICEFORYOU` (Gypsy's Kiss)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect formula changed:
    - Max SP Boost:
       - SkillLv < 10: `(9 + SkillLv)%`
       - SkillLv = 10: `20%`
    - SP Cost reduction: `(SkillLv + 5)%`
    - Caster stats and Dance Lessons no longer boosts the effects
  - SP Cost changed:
     - Old: `35 + (SkillLv x 5)`
     - New: `57 + (SkillLv x 3)`
  - `1` s casting time added
  - `0.5` s global delay added
  - `20` s cooldown added
- Rebalance of `DC_FORTUNEKISS` (Lady Luck)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect changed:
    - Crit boost formula changed: `+(SkillLv)%`
    - Added effect: Crit damage `+(SkillLv x 2)%`
    - Caster stats and Dance Lessons no longer boosts the effects
  - SP Cost changed:
     - Old: `40 + (SkillLv x 3)`
     - New: `35 + (SkillLv x 5)`
  - `1` s casting time added
  - `0.5` s global delay added
  - `20` s cooldown added
- Rebalance of `DC_HUMMING` (Focus Ballet)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect formula changed:
    - HIT boost: `+(SkillLv x 4)`
    - Caster stats and Dance Lessons no longer boosts the effects
  - SP Cost changed:
     - Old: `20 + (SkillLv x 2)`
     - New: `30 + (SkillLv x 3)`
  - `1` s casting time added
  - `0.5` s global delay added
  - `20` s cooldown added
- Changed the general effect of performing ensembles
  - Added the `SC_ENSEMBLEFATIGUE` effect after ensemble skills. After using an ensemble skill, ensemble fatigue starts on both performers.
  - Ensemble skills now consumes requirements from partner too
- Rebalance of `BD_RICHMANKIM` (Mental Sensing)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - EXP Boost formula changed:
    - Old: `+(25 + SkillLv x 11)%`
    - New: `+(10 + SkillLv x 10)%`
  - `1` s casting time added
  - `0.3` s global delay added
  - `20` s cooldown added
- Rebalance of `BD_RINGNIBELUNGEN` (Harmonic Lick)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect changed. Now gives a random buff to user and party members:
    - ASPD `+20%`
    - ATK `+20%`
    - MATK `+20%`
    - MaxHP `+30%`
    - MaxSP `+30%`
    - All Stats `+15`
    - Hit `+50`
    - Flee `+50`
    - Reduce SP consumption of skills by `30%`
    - Increase HP Recovery by `100%`
    - Increase SP Recovery by `100%`
  - SP Cost changed:
     - Old: `35 + (SkillLv x 3)`
     - New: `68 - (SkillLv x 4)`
  - `1` s casting time added
  - `0.3` s global delay added
  - `20` s cooldown added
- Rebalance of BD_SIEGFRIED (Acoustic Rhythm)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect formula changed:
    - Old:
      - Elemental Resistance: `(30 + SkillLv x 10)%`
      - Status Effect Resistance: `(SkillLv x 10)%`
    - New:
      - Elemental Resistance: `(SkillLv x 3)%`
      - Status Effect Resistance: `(SkillLv x 5)%`
  - SP Cost changed:
     - Old: `20` on all skill levels
     - New: `36 + (SkillLv x 4)`
  - `1` s casting time added
  - `0.3` s global delay added
  - `20` s cooldown added
- Rebalance of `BD_INTOABYSS` (Power Chord)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - SP Cost increased: `10` -> `70`
  - `1` s casting time added
  - `0.3` s global delay added
  - `20` s cooldown added
- Rebalance of `BD_ETERNALCHAOS` (Down Tempo)
  - Skill reworked:
    - It now casts a single AoE effect in a `9x9` area
    - It no longer uses ground units nor keeps the "performance running"
  - SP Cost increased: `30` -> `120`
  - `1` s casting time added
  - `0.3` s global delay added
  - `60` s cooldown added
- Rebalance of `BD_ROKISWEIL` (Classical Pluck)
  - Skill reworked:
    - It is now a single AoE effect
    - It no longer keeps the "performance running"
  - Effect changed: Inflicts confusion and blocks use of skill in all entities (Except performers)
  - Can only be used in PvP areas
  - `0.3` s of global delay added
  - `1` s casting time added
  - `20` s of cooldown added
  - SP cost increased: `15` -> `180`
  - Area of Effect increased: `7x7` -> `9x9`
- Rebalance of `BD_LULLABY` (Lullaby)
  - Skill reworked:
    - It is now a single AoE effect
    - It no longer keeps the "performance running"
  - Effect changed:
    - Inflicts sleep in enemies around user
    - INT no longer affects the chance
  - `0.3` s of global delay added
  - `1` s casting time added
  - `20` s of cooldown added
  - SP cost increased: `20` -> `40`
  - Area of Effect increased: `7x7` -> `9x9`
- Rebalance of `BD_DRUMBATTLEFIELD` (Battle Theme)
  - Skill reworked:
    - It is now a screen-wide skill (`31x31`) that gives the SC to all party members
    - It no longer uses ground units nor keeps the "performance running"
  - Effect formula changed:
    - Old:
      - Damage Boost: `125 + (SkillLv x 25)` (depending on size)
      - DEF  Boost: `SkillLv x 10`
    - New:
      - ATK Boost: `15 + (SkillLv x 5)` (ATK2 / I am making it as BATK / equip atk)
      - DEF  Boost: `SkillLv x 15`
  - SP Cost increased:
     - Old: `35 + (SkillLv x 3)`
     - New: `46 + (SkillLv x 4)`
  - `1` s casting time added
  - `0.3` s global delay added
  - `20` s cooldown added
- Rebalance of `BD_ADAPTATION` (Amp)
  - Skill reworked.
    - It now concedes an SC (`SC_ADAPTATION`) which reduces the SP consumption of performance skills by `20%`.
   - `300` s cooldown added
   - `0.3` s of global skill delay added
   - SP cost increased: `1` -> `10`
- Ensemble skills range is expanded to `4` cells
- The dispell logic for songs has been removed, since "song areas" no longer exist

#### 2-1 Transcendent Classes

- Rebalance of the 2-1 transcendent job skills, implementation based on kRO and kRO zero patch notes from 2018-10-31, iRO Wiki, rAthena and divine pride info, along with some in-game testing. (#3331, #3332, part of issue #2735)

##### Lord Knight

- Rebalance of `LK_SPIRALPIERCE` (Spiral Pierce)
  - Changed variable cast time
    - Old: `0.15 / 0.25 / 0.35 / 0.45 / 0.5` s
    - New: `0.25` s in all skill levels
  - Changed fixed cast time
    - Old: `0.15 / 0.25 / 0.35 / 0.45 / 0.5` s
    - New: `0.3` s in all skill levels
  - Changed global delay
    - Old: `1.2 / 1.4 / 1.6 / 1.8 / 2` s
    - New: `1` s in all skill levels
  - Changed damage formula
    - `BaseATK` increased by 50%
      - Old: `150 / 200 / 250 / 300 / 350`
      - New: `200 / 250 / 300 / 350 / 400`
    - Size modifier changed
      - Small: `125%` -> `130%`
      - Medium: `100%` -> `115%`
      - Large: `75%` -> `100%`
    - Now deals more damage depending on user's base level
- Rebalance of `LK_AURABLADE` (Aura Blade)
  - Changed damage bonus formula
    - Old: `SkillLv x 20`
    - New: `BaseLv x (SkillLv + 3)`
- Rebalance of `LK_CONCENTRATION` (Concentration)
  - ATK Bonus changed
    - Old: `(SkillLv x 5) %` flat
    - New: `(5 + SkillLv x 2) %` ATK %
  - Def reduction % changed
    - Old: `(SkillLv x 5) %`
    - New: `(5 + SkillLv x 2) %`
  - Duration changed
    - Old: `25 / 30 / 35 / 40 / 45 / 50 / 55 / 60 / 65 / 70` s
    - New: `60` s at all skill levels
  - The effect no longer gets removed when changing/removing weapon

##### Mastersmith / Whitesmith

- Rebalance of `WS_OVERTHRUSTMAX` (Maximum Power Thrust)
  - Removed chance of weapon destruction

##### High Priest

- Rebalance of `HP_BASILICA` Basilica
  - Skill reworked. It is now a simple buff on the caster.
  - SC_BASILICA_BUFF added (given by Basilica)
    - Boosts MATK of Holy magic skills by `(3 x SkillLvel)%`
    - Boosts Physical ATK by `(5 x SkillLevel)%` against elements Shadow and Undead
  - Reduced fixed casting from `(4 + SkillLevel)s` to `1` s
  - Added `3` s of Variable cast time
  - Global delay reduced to `1` s
  - Added Cooldown of `30s`
  - SP cost reduced
    - Old: `80 / 90 / 100 / 110 / 120` s
    - New: `40 / 50 / 60 / 70 / 80` s
  - SC Duration increased
  - Item requirements removed
- Rebalance of `HP_ASSUMPTIO ` Assumptio
  - Effect changed
    - Old: Doubles Hard DEF and Hard MDEF
    - New: Increases Hard DEF by `(SkillLv x 50)`;
    - Increases incoming heal effectivenes by `(SkillLv x 2)`%
  - Can now be used together with Kyrie Eleison/Kaite/Praefaetio
  - Global delay reduced to `0.5s` on all skill levels

##### Sniper

- Rebalance of `SN_SHARPSHOOTING` Focused Arrow Strike
  - Reduced Fixed Cast Time: `1` s -> `0.5` s
  - Reduced Variable Cast Time: `1` s -> `0.5` s
  - Reduced Global skill delay: `1.5` s -> `0.5` s
  - Changed damage formula:
    - Old: `(100 + SkillLv x 50)` %
    - New: `(150 + SkillLv x 200)` %
  - Damage now scales with user's base level
  - Changed critical rate bonus: `20` % -> `50` % (source: iRO Wiki)

- Rebalance of `SN_FALCONASSAULT` Falcon Assault
  - Damage formula changed
     - Old: `(150 + SkillLv x 70)` % of Blitz Beat damage
     - New:* `((Floor(AGI ÷ 2) x 2 + Floor(DEX ÷ 10) x 2 + Blitz_Beat_Lvl x 20 + Steel_Crow_Lv x 6) x Skill Level + Steel_Crow_Lvl x 6) x (Steel_Crow_Lvl ÷ 20 + Skill Level + Base Lvl ÷ 50)`
* Note: Damage formula is based on iRO wiki

##### High Wizard

Rebalance of `HW_GRAVITATION` Gravitational Field
  - Skill is reworked and is now a simple AOE Magic damage at position
  - Damage changed:
    - Old: `(500 + SkillLv x 100)` every `0.5` seconds for a period of time
    - New: `(SkillLv x 50)` % MATK, in a pack of `(8 + SkillLv x 2)` hits
  - Damage now scales with user's base level
  - It no longer causes ASPD reduction
  - SP Cost changed:
    - Old: `20 / 40 / 60 / 80 / 100`
    - New: `60 / 70 / 80 / 90 / 100`
  - It no longer requires blue gemstone
  - Fixed cast time reduced from `5` s to `1` s
  - Added `5` s of Variable cast time
  - Added `5` s of CoolDown
  - Reduced Global Delay from 9s to 1s (see note)

  Note: Hercules did not have a global delay for this skill, even though
  official sources mention there used to be a 9s global delay. So this
  commit is actually adding 1s of global delay instead of reducing

Rebalance of `HW_NAPALMVULCAN` Napalm Vulcan
  - Damage formula changed
     - Old: SkillLevel Hits of `125` % MATK
     - New: SkillLevel Hists of `(SkillLevel x 70)` % MATK
  - Damage now scales with user's base level
  - When hitting multiple targets, it no longer splits the damage
  - Global delay reduced from `1` s to `0.5` s
  - Added `1 s of Cooldown

#### 2-2 Transcendent Classes

##### Paladin

- Rebalance of `PA_SHIELDCHAIN` Shield Chain
  - Increase Range `4` -> `11`
  - Damage formula changed
    - Old: `(500 + SkillLv x 150)` %
    - New: `(300 + SkillLv x 200)` %
    - Damage now scales with user's base level

- Rebalance of `PA_PRESSURE`  Gloria Domini
  - Damage type changed from fixed to Holy Magic damage
  - Damage formula changed:
     - Old: `500 + SkillLv x 300` (Fixed)
     - New: `(500 + SkillLv x 150)` % MATK
     - Damage now scales with user's base level
  - Variable casting reduced: `4` s -> `1` s
  - Global delay reduced: `4` s -> `1` s

##### Professor

- Rebalance of `PF_HPCONVERSION` Indulge
  - Reduce global delay to 0.5s on all skill levels*

  NOTE: iRO Wiki says it is on "all skill levels", while the official
  patch notes for kRO and iRO suggests it was generally reduced but only
  level 5 really gets 0.5s... We are following iRO Wiki here

##### Champion

Rebalance of `CH_SOULCOLLECT` Zen
- Fixed Cast Time reduced `2` s -> `1` s

Rebalance of `CH_PALMSTRIKE` Raging Palm Strike
- Damage formula changed:
  - Old: `[200 + SkillLv * 100]` %
  - New: `[200 + SkillLv * 100 + Str * 5]` %
  - Damage now scales with user's base level

Rebalance of `CH_TIGERFIST` Glacier Fist
- Damage formula changed:
  - Old: `[40 + 100 * SkillLv]` %
  - New: `[500 + 150 * SkillLv]` %
  - Damage now scales with user's base level

Rebalance of `CH_CHAINCRUSH` Chain Crush Combo
- Reduced number of spirit spheres: `2` -> `1`
- Changed damage formula:
  - Old: `[400 + 100 * SkillLv]` %
  - New: `[200 * SkillLv]` %
  - Damage now scales with user's base level

##### Clown/Gypsy

- `CG_LONGINGFREEDOM` (Longing for Freedom) removed,
  replaced by CG_SPECIALSINGER (Skilled Special Singer)
- Skilled Special Singer is a skill that removes `SC_ENSEMBLEFATIGUE`,
  a SC caused when using ensemble skills which prevents skill usage
  along other debuffs.

## [v2025.01] `January 2025`

### Added

- Added some validation checks for unusual/suspicious whitespace in incoming chat messages. (#3335)

## [v2024.11] `November 2024`

### Changed

- Updated mob_db2 documentation to include the `Inherit` mechanism. (#3327)

### Fixed

- Fixed a code comment containing misleading information. (#3327)
- Fixed the `clang-13` build in the GitHub CI, failing due to a removed package in debian unstable. (#3333)

## [v2024.10] `October 2024`

### Changed

- Changed the `getmobdrops()` script command to avoid the use of global temporary variables. (#3319)
  - The caller now specifies an array that will be filled with the requested data.
  - The amount of filled entries will be returned as the command's return value. The caller should only read up to that amount of entries from the array, as it may contain previous leftover values past that point.
  - See the script_commands documentation for further details.
- Improved the output of the `@mobinfo` atcommand to include item links for the mob drops, on clients that support it. Unsupported clients will gracefully fall back to just printing the names. #3328
- Improved the output of the `@iteminfo` atcommand to include item links, on clients that support it. Unsupported clients will gracefully fall back to just printing the names. #3329

## [v2024.09] `September 2024`

### Added

- Implemented the script command `getunitparam()` to query values defined in `unit_parameters_db.conf`, and the related `UNIT_PARAM_*` constants. See the `script_commands.txt` documentation for usage details. (#3323)
- Added validation of the name length for configuration entries added through the HPM `addBattleConf()`, `addLoginConf()`, `addCharConf()`, `addCharInterConf()`, `addLogConf()`, `addScriptConf()` methods, to prevent silent truncation. (#3324)

### Fixed

- Fixed an issue causing item-granted skills that were overriding an existing skill level, not to be correctly cleared when unequipping the item. (#3322)
- Fixed previously plagiarized skills re-appearing on subsequent logins due to the related script variables not getting cleared properly. (#3325)

## [v2024.08] `August 2024`

### Changed

- Converted packets `CHARLOGIN_ONLINE_ACCOUNTS`, `MAPCHAR_AUTH_REQ`, `CHARLOGIN_SET_ACCOUNT_ONLINE` to the struct format. (#3304, #3312, #3314)
- Excluded the standalone (i.e. autotrader) characters from those sent to the API server. (#3314, issue #3306)
- Changed the `getpartymember()` script command to avoid the use of global temporary variables. (#3305, #3307, #3308, #3315)
  - The caller now specifies an array that will be filled with the requested data.
  - The amount of filled entries will be returned as the command's return value. The caller should only read up to that amount of entries from the array, as it may contain previous leftover values past that point.
  - Added constants for specifying the requested data: `PT_MEMBER_NAME`, `PT_MEMBER_CHARID`, `PT_MEMBER_ACCID`.
  - See the script_commands documentation for further details.
  - The included scripts have been updated with the new syntax.
- Changed the `getguildmember()` script command to avoid the use of global temporary variables. (#3310, #3311, #3318)
  - The caller now specifies an array that will be filled with the requested data.
  - The amount of filled entries will be returned as the command's return value. The caller should only read up to that amount of entries from the array, as it may contain previous leftover values past that point.
  - Added constants for specifying the requested data: `GD_MEMBER_NAME`, `GD_MEMBER_CHARID`, `GD_MEMBER_ACCID`.
  - See the script_commands documentation for further details.
- Reduced timeout for the GitHub Actions CI builds to 30 minutes, to prevent stuck jobs from stalling the entire pipeline for too many hours. (#3317)

### Fixed

- Fixed a packet reading error causing the list of online characters on char and login server to desynchronize and invalidate the API server tokens. (#3304)
- Fixed CI builds failing due to the MariaDB client attempting to connect to the server with SSL. (#3313)
- Fixed the hwsapi commits failing because of an expired GPG key.
- Fixed HPMDataCheck containing incomplete data because of a missing include in the headers that use the `DEFINE_PACKET_ID` macro. (#3314)
- Updated the mapcache entry for `iz_ac02` (renewal-only content) to a 2012 version compatible with the included scripts. (#3316, issue #2809)
- Fixed deprecation warnings in the GitHub Actions CI builds caused by the use of unsupported nodejs v16 actions. The actions have been upgraded to their nodejs v20 versions as recommended by GitHub. (#3317)
- Fixed a deprecation warning in the GitHub Actions macOS CI builds due to a packet that was renamed. (#3317)

### Deprecated

- Deprecated building on GCC versions older than 7. This has been the case for at least 4 months according to the Supported Platforms rules, but this is the official deprecation warning. Support macros and workarounds will be dropped from the code at some point in the future. (#3317)

### Removed

- Removed GitHub Actions workflows that don't support nodejs v20. This includes the test builds for gcc-4.8, gcc-5 and gcc-6, which have been unsupported by Hercules for at least 4 months. (#3317)

## [v2024.06] `June 2024`

### Added

- Added the `mesnavigation()` script command, to generate navi tags valid for the current packetver. (#3300)
- Added the `mesmobspawn()` script command, to generate navi tags valid for the current packetver. (#3300)
- Added the `mesurl()` script command, to generate clickable URL tags valid for the current packetver. (#3300)
- Added the `mestipbox()` script command, to generate tipbox tags valid for the current packetver. (#3300)

### Changed

- Refactored the Plagiarism/Reproduce skill tracking logic and removed some code duplication. (part of #3298)
- Replaced the use of hardcoded `<NAVI>` tags in scripts with `mesnavigation()` calls. (#3300)

### Fixed

- Fixed the copy of one's own skills via Plagiarim or Reproduce causing the skill and its requirements to be deleted. (#3298, issue #3289)

## [v2024.05] `May 2024`

### Changed

- Implemented official ATK % calculation for `BS_OVERTHRUST` in pre-renewal. Party members only receive 5% ATK bonus. (#3293)

### Fixed

- Fixed a missing initialization of the (m)atk/(m)def modifiers, resulting into 0 or 1 damage. (#3293, related to #3290)
- Fixed an incorrect call of `clif->updatestatus()` to non-player objects in relation to atk/def percent bonuses. (#3294, related to #3290)
- Fixed a failure on SCs from skills that don't have a `StatusChange` entry in their skill db entries after a `@reloadskilldb`, such as the spirit skills. (#3296, issue #3295)
- Fixed a compiler warning due to a missing case label when `SECURE_NPCTIMEOUT` is enabled. (#3297, issue #3197)

## [v2024.04] `April 2024`

### Added

- Implemented `skill->get_index_sub()`, allowing to prevent error reports on the console when a skill is not found, for testing whether a skill exists in places where its absence is not an error. (#3292)
- Implemented (m)atk/(m)def percent system: (#3290)
  - Implemented percent atk/def/matk/mdef bonus calculation, matching the official behavior
  - Added the `AtkPerc`, `DefPerc`, `MatkPerc`, `MdefPerc` calc flags to `sc_config.conf` to trigger recalculation of the respective stats
  - Added atk percent bonus to the client's status window like on official servers (note: the matk percent bonus is not displayed)
  - Added def percent bonus to the client's status window (included in the soft def)
  - Implemented official behavior for skills/status changes that officially rely on this system (detailed below)
- Added the script command `getitemgroupitems()` to obtain a list (without duplicates) of all items contained in a given item group (#3275)
- Added support for the `ZC_SOULENERGY` packet for displaying soul balls, split from `ZC_SPIRITS` for new clients (#3291)

### Changed

- Converted handling of packets `ZC_SKILL_SELECT_REQUEST`, `CZ_SKILL_SELECT_RESPONSE` and `ZC_SPIRITS2` to the structure format. (#3292, #3291)
- Changed the Tarot Card of Fate (`CG_TAROTCARD`) Strength (atk), The Magician (matk), The Devil (atk, matk), The Sun (atk, matk, def) bonus calculation to use the newly implemented atk/def percent system. This includes the new SCs `SC_TAROTCARD_ATK_PERC`, `SC_TAROTCARD_MATK_PERC`, `SC_TAROTCARD_DEF_PERC`. (#3290)
- Changed the Gospel (`PA_GOSPEL`) bonus calculations to use the newly implemented atk/def percent system. This includes the new SC `SC_GOSPEL_ATK_PERC`. (#3290)
- Changed the Provoke (`SM_PROVOKE`, `MER_PROVOKE`) SC (`SC_PROVOKE`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Concentration (`LK_CONCENTRATION`) SC (`SC_CONCENTRATION`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Bloodlust (`HAMI_BLOODLUST`) SC (`SC_HAMI_BLOODLUST`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Vital Strike (`LK_JOINTBEAT`) SC (`SC_JOINTBEAT`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Eske (`SL_SKE`) SC (`SC_SKE`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Fleeting Move (`HFLI_FLEET`) SC (`SC_HLIF_FLEET`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Curse SC (`SC_CURSE`) to use the newly implemented atk/def percent system. (#3290)
- Changed `SC_INCATKRATE` to use the newly implemented atk/def percent system. (#3290)
- Changed the Divest Weapon (`RG_STRIPWEAPON`) SC (`SC_NOEQUIPWEAPON`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Mind Breaker (`PF_MINDBREAKER`) SC (`SC_MINDBREAKER`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Divest Shield (`RG_STRIPSHIELD`) SC (`SC_NOEQUIPSHIELD`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Fling (`GS_FLING`) SC (`SC_FLING`) to use the newly implemented atk/def percent system. (#3290)
- Changed the Angelus (`AL_ANGELUS`) SC (`SC_ANGELUS`) to use the newly implemented atk/def percent system. (#3290)
- Changed Poison (`SC_POISON`) and Deadly Poison (`SC_DPOISON`) to use the newly implemented atk/def percent system. (#3290)
- Changed Asura Strike (`MO_EXTREMITYFIST`) to ignore atk percent bonuses. (#3290)
- Changed several functions to take or return `enum scb_flag` where appropriate. (#3290)
- Added a compatibility workaround for `enum scb_flag` (via typedef to `e_scb_flag` and `int64_t` constants) for pre-C23 MSVC versions that don't support enum values larger than 32 bit. This is only conditionally enabled on such compilers, and will be dropped when we'll be able to switch the C standard to C23. (#3290)
- Split handling of the spiritball clif function into `clif->spiritballs()` and `clif->soulball()`, with incompatible arguments to the old `clif->spiritball()` calls. Second argument is now the amount of spheres, instead of their type. (#3291)

### Fixed

- Fixed a memory leak when reloading the unit params db (#3288)
- Fixed an assertion failure in Auto Shadow Spell when the character has no cloned or reproduced skills. (#3292)
- Fixed Auto Shadow Spell's inability to switch to a skill with a lower skill id than the previously selected one. (#3292)
- Fixed an assertion failure when clicking "ok" with no skills selected or clicking "cancel" in Shadow Spell. (#3292, issue #3286)
- Fixed the value of the `flag` field of packet `ZC_SKILL_SELECT_REQUEST`, expected to be 1 (meaning auto shadow spell) rather than the amount of skills in the list. (#3292)
- Fixed soul balls not displaying correctly in clients from 2020 onwards. (#3291)

### Deprecated

- Support for C99 is deprecated and will be removed soon. C11 will be the required C standard since all the officially supported compilers implement that. This is a reminder that the mainstream support for VS2019 by Microsoft ended on Apr 9 2024, making VS2022 (version 17.4 and newer) the only version we currently support officially.

### Other

- Work on the rebalance patch is continuing on the `rebalance` branch.

## [v2024.03] `March 2024`

### Added

- Created a `rebalance` branch to collect all the rebalance-related PRs as there will be inconsistencies in the game until they are all merged.
  - The code merged into this branch is already production-grade and would have been merged to master other than for consistency reasons.
  - Those that wish to preview the changes before they are complete are free to use this branch (see its CHANGELOG.md for details of the merged changes so far).
  - It will be eventually merged into master and will be treated the same way as master (no force-pushes, no history rewrites).
- Migrated the Hercules GitHub wiki to a new platform (MkDocs) at the URL https://docs.herc.ws/
  - Contributions are very welcome on the associated repository https://github.com/HerculesWS/hercules-docs
  - For a syntax reference, see https://squidfunk.github.io/mkdocs-material/reference/
- Added GitHub Actions CI workflows targeting Visual Studio on Windows. (#3284)

### Changed

- Changed `openlapineupgradeui()` and `openlapineddukddakboxui()` to allow calls without an item id when used in item scripts. (#3272)

### Fixed

- Fixed a regression in the item trade packet (2020+) causing an incorrect item grade to be sent. (#3287, since v2021.12.01)
- Fixed a build error on Mac computers with different types of cores, such as the 'performance' and 'efficiency' cores of the M series CPUs. (#3271)

## [v2024.02] `February 2024`

### Added

- Added GitHub Actions CI builds on macOS (Intel and ARM). (#3281)

### Changed

- Renamed the arguments of the `aMalloc()`, `aCalloc()`, `aStrndup()`, `aRealloc()`, `aReallocz()` macros to make it harder to accidentally swap their order. (#3280)

### Fixed

- Fixed `expandinventory()` not allowing to return to the initial minimum inventory size. (#3270)
- Fixed a race condition allowing for a call to `clif->pLoadEndAck()` before the client's loadendack is received. (#3277)
- Fixed a memory leak of emblem data when guilds are unloaded or disbanded. (#3278)
- Fixed several instances of swapped arguments in `aCalloc()` calls, causing warnings in gcc-14. (#3280)
- Fixed a regression causing AutoSpell not to replace the selected skill when the new skill has lower level than the previous one. (#3282)

### Other

- Updated copyright headers for year 2024.

## [v2023.12] `December 2023`

### Added

- Added a warning when enabling the RoDEX account box on unsupported client packetvers. To continue using this feature with patched RE clients it is necessary to uncomment the `ENABLE_RODEX_ACCOUNT_MAIL_RE_PATCH` macro in `core.h`. (#3263)
- Added a warning when a script sends account mails when the feature is disabled on the server. (#3263)
- Added an option to allow combo skills requested during previous skill's delay to be accepted (and queued up for execution), making them easier to trigger especially by players with high latency. The option can be enabled by setting `combo_cache_skill` to `true` in `conf/map/battle/skill.conf`. (#3260, #3266)
- Added constants for all `messages.conf` messages replacing a large amount of magic numbers. The maximum number of messages is now defined in `common/msgtable.h` as `MSGTBL_MAX`. See the related pull request description for a conversion tool that may be used to migrate custom constants. (#3265)

### Changed

- Enabled the RoDEX account box by default since the default packetver supports it. (#3263)
- Improved the error messages, providing additional useful details, when a char server's connection request to the login server is rejected. (#3264)
- Cleaned up some repetition from the job name switches, replaced with X macro using the `class*.h` files. See the pull request description for migration details in case of custom jobs. (#3265, related to #165)

### Fixed

- Fixed the `snap_dodge` setting not working with `MO_EXTREMITYFIST`. (#3241, issue #638)
- Fixed stat food and cash stat food being stacked on top of each others. Cash food of higher level is able to overwrite buffs from normal food, while normal food won't overwrite buffs from cash food. (#3250, issue #2489)
- Fixed some SC counters (including Storm Gust) not getting reset to 0 when a unit dies. (#3255, issue #3196)
- Fixed costumes blocking itemskill execution, even when items are being consumed. (#3257, related to issue #2925)
- Fixed a race condition that may cause SC statuses to be received after the character status calculations are done, when the server is under heavy load. (#3256)
- Fixed a compiler warning caused by swapped aCalloc arguments. (#3264)
- Fixed the `MO_TRIPLEATTACK` animation not workingn when there's no possible chainable combo skill. (#3259)
- Removed an incorrect `afterCastActDelay` from `PA_SACRIFICE` in pre-renewal. (#3259)
- Removed the fixed target from some combo skills. Monk skills act on the current target even if the last skill was used on a different enemy. (#3259)
- Fixed `MO_TRIPLEATTACK` overwriting `attackabletime`. (#3259)
- Fixed combo delays applying to all `SC_COMBOATTACK` based skills and not sending the proper time to the client. (#3259)
- Fixed one cell movement not ignoring hidden objects (such as GMs) in its stack limit calculation. (#3259)

### Removed

- Removed nearly identical redundant Visual Studio solutions for different versions. Only one version is kept, compatible with all the supported VS versions. The AppVeyor CI configuration is updated accordingly. (#3262, #3267, #3268)

## [v2023.11] `November 2023`

### Added

- Added an option to use an unit's current facing direction to search for free cells, instead of defaulting to east. (#3242)
  - The option, currently disabled by default, can be turned on by setting `keep_dir_free_cell` (`conf/map/battle/misc.conf`) to true.
  - Advantages:
    - Improves distribution of mobs when dispersing after being grouped. This setting allows monsters to spread in a circular fashion instead of forming a long horizontal line.
    - Allows characters to move more naturally if they came from the east, instead of walking back.
    - In some instances, fixes characters walking in a loop unable to pick up an item. (#1241)

### Changed

- Changed the map server's behavior when receiving invalid connections with unknown protocols to terminate the connection after receiving the second byte. (#3247)
- Disabled the possibility of attaching a script to a character in autotrade mode through `attachrid()`. This solves a number of issues with many script commands assuming a client to be attached. (#3243, issue #568)
- Updated map list, mapcache, NPC and hateffect constant databases. (#3249)
- Extracted the Blade Stop (Root) trigger conditions to a separate function for better readability and maintainability. (#3254)

### Fixed

- Fixed some job concurrency conflicts in the GitHub Actions workflows causing some tests to be skipped for pushes to the master branch. (#3239)
- Consolidated the GitHub Actions workflow entry point to always be the 'controller' regardless of the trigger condition. (#3239)
- Fixed `MO_TRIPLEATTACK` not applying the same motion delay as the client in the case the next combo is not possible, causing visual glitches. (#3240)
- Fixed the `MO_TRIPLEATTACK` delay formula increasing delay with dex instead of decreasing it. (#3240)
- Fixed an issue causing characters to be stuck in a walk loop while trying to pick up an unreachable item on the ground. (#3242, issue #1241)
- Fixed a deprecation warning issued by MariaDB causing CI test failures. (#3247)
- Fixed range and cast time for `ASC_BREAKER`. (#3245, issue #1104)
- Fixed `SA_DISPEL` not working in duels. (#3246, issue #640)
- Added support for GRF files larger than 2 GiB on Windows, fixing failures in mapcache generation. (#3248, issue #2935)
- Fixed songs not triggering their onleft or onout events when overlapping and turning into dissonance. (#3251, issue #1501)
- Fixed the range checks of Blade Stop/Root: (#3254)
  - Fixed the target's (as in triggering attack target, and Blade Stop caster) equipped weapon wrongly affecting the skill's working range.
  - Success range is changed to 2, to match the official behavior.
  - In pre-re, changed it to always succeed against player attackers regardless of range.
  - Changed it to always succeed for non-player casters regardless of range (custom Hercules behavior, officially only players may cast Blade Stop).
- Fixed `CELL_NOSTACK` making mob ai not being able to reach target under certain conditions. (#3244, issue #574)
- Fixed the critical bonus calculation from status effects getting truncated to 0.3 CRIT per point of LUK instead of 1/3. (#3252, issue #3094)

# [v2023.10] `October 2023`

### Added

- Added an option to synchronize the flinch animation with walk delay, improving positional lag. The option is disabled by default, uncomment the `WALKDELAY_SYNC` definition in `src/config/core.h` to enable it. (#3232)
- Implemented logic to generate "item links" serverside and the related script command `getitemlink()`, including various core functionalities this relies on. (#3236, #3238)
  - This also adds basic support for the `base62` encoding used by the client.

### Changed

- Refactored Auto Spell (Hindsight) and moved its configuration to a libconfig table. (#3237)
  - The configuration is available in the `{re,pre-re}/autospell_db.conf` file, see the documentation in the file header.
  - The separation between game logic (in `skill.c`) and client/display logic (in `clif.c`) has been improved.
  - Cast end logic has been separated from the large skill castend function into smaller dedicated functions.
  - The function `skill->autospell()` has been renamed to `skill->autospell_spell_selected()` to make its purpose clearer.
  - This refactoring will simplify some of the upcoming rebalance changes.
- Added concurrency settings to the GitHub CI workflows to cancel old ongoing builds when a new commit is pushed, speeding up testing the up to date version. (#3238)

### Fixed

- Fixed the HPMHooking API plugin builds in VS 17.x (#3231)
- Fixed `AM_ACIDTERROR` not ignoring defense on units other than those defined in `battle_config.vit_penalty_target` (i.e. players). (#3234)
- Fixed Sage's free case increasing ASPD instead of decreasing it when the skill level is lower than 10. (#3235)
- Fixed the `clang-13` build in the GitHub CI, failing due to a removed package in debian unstable. (#3238)
- Fixed AppVeyor CI builds, failing due to a missing `mysql56` image. (#3238)

## [v2023.08] `August 2023`

> Note: with this release the versioning scheme has slightly changed: the release day is no longer included in the release tag and is set to `00` in the `HERCULES_VERSION` constant. Hotfix releases will take the form `v2023.08.001` ~ `v2023.08.999` (and will set `HERCULES_VERSION` to `202308001` ~ `202308999`). Releases will still happen around the second wednesday of each month when possible.

### Added

- Added support for choosing between localtime and UTC output in the script command `gettime()` (defaults to localtime for backward compatibility). (#3224)
- Added support for choosing between localtime and UTC input in the script command `getcalendartime()` (defaults to localtime for backward compatibility). (#3224)
- Added the `GETTIMETICK_*` constants to be used with the `gettimetick()` script commands. It's recommended to update custom scripts to use the constants instead of numbers, as there is no guarantee that the values will not change in the future. (#3224)
- Added an option to allow Venom Dust to give experience points. See `venom_dust_exp` in `conf/battle/battle.conf`. (#3226, issue #3188)
- Added the missing `common/packets_struct.h` include to `HPMapi.c` and `HPMlogin.c`. (#3228)

### Changed

- Changed Poisoning Weapon to show the type of poison used when applied. (#3219)
- Moved the `GETTIME_*` constants to source. (#3224)
- Documented a quirk of `gettimetick(GETTIMETICK_HOUROFDAY_S)` (formerly known as type 1) when the server is running with a local timezone on the day daylight savings begin or end. (#3224)
- Changed `gettimetick()` to reject unknown types instead of defaulting to type 0. (#3224)

### Fixed

- Fixed a typo in the `sc_start()` rate description in the command documentation. (#3219)
- Fixed the duration and rate of Poisoning Weapon getting reduced more than they were supposed to be. (#3219)
- Fixed the duration of the Venom Bleed poison effect. (#3219)
- Fixed a missing VS 2022 solution for the HPMHooking API plugin. (#3222)
- Fixed `TF_DOUBLE` not granting the Hit bonus when triggered. (#3225)
- Fixed the command `getcalendartime()` returning the wrong timestamp when fed with a localtime input while daylight savings are in effect. (#3224)
- Fixed a warning about an unused variable in `npc.c` with some compilers. (#3224)
- Fixed the attendance system returning the wrong timestamp when the server is running on a local timezone and daylight savings are in effect. (#3224)
- Fixed temporary skills not getting cleared from the skill tree on recent clients when the item granting them is unequipped. (#3227, issue #3209)

## [v2023.07.12] `July 12 2023`

### Added

- Added a macro to toggle the logging of login/logout events in the API server. Disabled by default, uncomment the `DEBUG_ONLINEDB_LOG` definition in `aclif.c` to enable it. (#3207)
- Added support for `skill_db2.conf` to extend/override the skill DB. Just like the item and mob databases, it supports the `Inherit` field to allow overriding part of a skill's entry without having to copy the rest. (#3216)

### Changed

- Increased the default value of the API server setting `remove_disconnected_delay` from 5000 to 50000. (#3207)
- Reduced the timeout in the GitHub Actions CI scripts to 60 minutes, to avoid stuck jobs preventing further builds from starting for 6 hours and wasting a large amount of runner minutes. (part of #3217)
- Replaced some lengthy pieces of repeated code in the skill DB parser with a loop. (part of #3216)
- Changed case-insensitive checks to case-sensitive for many database fields: (#3216)
  - `SkillInfo` flag names
  - `SkillType` flag names
  - `DamageType` flags names
  - `Requirements/WeaponTypes` flags names
  - `Requirements/AmmoTypes` flags names
  - `Requirements/State` values
  - `Unit/Flag` flag names
  - `Unit/Target` values
    - NOTE: the `SameGuild` value was previously incorrectly listed as `Sameguild` in the examples and documentation. The correct version is `SameGuild`.
  - For debugging purposes, a piece of code similar to https://github.com/HerculesWS/Hercules/files/11782956/compare_skills.diff.txt can be used to print the values before and after applying this patch, to check the differences and ensure that no unintended changes were introduced in the parsing of one's custom entries.
- Added a `target` argument to `skill->check_condition_castend()` to allow additional checks that require information about the skill's target. (part of #3215)

### Fixed

- Added some missing null pointer checks and assertions. (part of #3207)
- Added API-server related configs into the copy actions of the VS projects. (part of #3207)
- Fixed an unreliable health check in the CI builds based on MariaDB containers. (#3217)
- Fixed some interactions of `MO_KITRANSLATION`. (#3215)
  - It should fail with a skill failure message and not consume requirements when: (#3215)
    - being cast on Gunslinger class
    - being cast on a player that already has 5 spheres
    - being cast on friendly non-player units (e.g. Mercenary)
- Fixed some interactions of `MO_ABSORBSPIRITS`. (#3215)
  - It should fail and not consume SP when:
    - the target player doesn't have spheres
    - the target player is of Gunslinger class (due to teh game implementation not allowing them to have spheres)
    - the target player is friendly
  - It should fail and consume SP when:
    - used on a BOSS monster
    - used on a non-boss monster, but failing the 20% check
    - used on non-player units (like mercenaries)
  - moved the target check to condition cast end
- Fixed the error message when a gunslinger is attempting to use a skill that requires coins without having the necessary amount. (#3215)
- Fixed the stacking of `WM_POEMOFNETHERWORLD` to match the behavior described in the 2012.08.22 official patch notes: (#3215)
  - it cannot be placed over another instance of the skill
  - when trying to do so, it should show a position error to client

## [v2023.06.14] `June 14 2023`

### Added

- Implemented the Unit Parameters DB, to allow splitting some battle configs into separate pre-renewal and renewal databases and fine tune them in configuration groups associated to each job. (#3214)
  - The new database is in [db/pre-re/unit_parameters_db.conf](db/pre-re/unit_parameters_db.conf) / [db/re/unit_parameters_db.conf](db/re/unit_parameters_db.conf) and it is referenced by the job db through the new `ParametersGroup` field.
  - Support for plugins to extend the DB is provided, through `addToUnitParam()`, `getfromUnitParam()`, `removefromUnitParam()`.
  - The following fields are available, with the respective macros to access them from the source:
    - `MaxHP` (replaces `battle_configuration/max_hp`) - `pc_maxhp_cap(sd)`
    - `MaxASPD` (extends `battle_configuration/max_aspd` and supersedes `battle_configuration/max_third_aspd`) - `pc_max_aspd(sd)`
    - `MaxStats` (extends `battle_configuration/max_parameter` and `battle_configuration/max_third_parameter`, supersedes `battle_configuration/max_extended_parameter`, `battle_configuration/max_summoner_parameter`, `battle_configuration/max_baby_parameter`, `battle_configuration/max_baby_third_parameter`) - `pc_maxstats(sd)` (replaces `pc_maxparameter(sd)`)
    - `NaturalHealWeightRate` (replaces `battle_configuration/natural_heal_weight_rate`) - `pc_overhealweightrate(sd)` and the helper `pc_isoverhealweight(sd)` (replaces `pc_is50overweight(sd)`)
  - The `MaxHP` field supports defining level ranges to make the parameter vary based on the character's level.
  - Detailed documentation is available in [doc/unit_parameters_db.md](doc/unit_parameters_db.md)
  - Additional upgrade notes including an upgrade cheatsheet can be reviewed in the pull request description at https://github.com/HerculesWS/Hercules/pull/3214

### Changed

- Changed the animation delay to be applied at castbegin instead of castend, to match official behavior. `skill_amotion_leniency` now defaults to 0 which offers a more accurate official behavior. Users that wish to block more speedhacks may still increase it. (#3187, issue #2703)
- Changed the player's maximum HP to be capped differently based on the player's level (Renewal, episode 15.1). (part of #3214, related to issue #243)

### Fixed

- Fixed some (false positive) `sprintf()` overflow warnings. (#3212)

### Removed

- Removed the deprecated `LGTM` badge from the main README. (#3211)
- Removed the following battle configuration settings, superseded by the unit parameters db - see above for details: (part of #3214)
  - `battle_configuration/max_hp`
  - `battle_configuration/max_third_aspd`
  - Note: `battle_configuration/max_aspd` still exists but is only used for Homunculus and as a fallback for players whose job can't be determined
  - `battle_configuration/max_extended_parameter`
  - `battle_configuration/max_summoner_parameter`
  - `battle_configuration/max_baby_parameter`
  - `battle_configuration/max_baby_third_parameter`
  - Note: `battle_configuration/max_parameter` and `battle_configuration/max_third_parameter` are retained since some logic still depends on them
  - `battle_configuration/natural_heal_weight_rate`

## [v2023.05.10] `May 10 2023`

### Added

- Added support to clone the definition of an item in the `item_db`. A cloned item inherits all the fields (except item ID and AegisName) of its original, allowing a compact definition with only the fields that differ. See the definition of `CloneItem` in [doc/item_db.txt](doc/item_db.txt) for details. (#3206)
- Added the script commands `openquestui()` and `opentipboxui()`. (#3201)

### Changed

- Updated the Thanatos Tower with its Renewal changes (only affecting Renewal mode), based on the official patch notes, until before the revamp update. (#3204)
  - Changes from 2012.04.04 kRO Patch:
    - It is no longer required to have several players near the NPC to move to the 3rd floor
  - Changes from 2016.06.29 kRO Patch:
    - Burled Request quest exp reward updated:
      - Base EXP: 120,000 -> 1,200,000
      - Job EXP : 100,000 -> 1,000,000
    - Burled Request quest required level changed
      - No level requirement -> Level 91 or higher required
    - Changed weapon level required to progress Burled Request quest
      - Level 4 Weapon -> Level 3 or 4 Weapon
    - Changed restrictions to enter upper floors of the tower with a Black Key
      - Before: Reborn, 3rd classes or Expanded jobs level 95 or above
      - Now: Any character level 95 or above
  - Edited lines were also updated to current Hercules' standards and HULD
- Disabled full request logging in the api server. (#3203)
- Added the warning flag `-Wenum-int-mismatch` to the build settings. (#3203)
- Extended the `ZC_OPEN_UI` packet functions to allow passing the `data` field as a parameter. (part of #3201)

### Fixed

- Added the missing EXP rewards for the Amatsu Dungeon quest. (#3205)
- Fixed errors in the MinGW builds (#3203)
  - Added a missing stdbool.h include.
  - Fixed the plugin file extension.
- Added a check for an empty char server response in the API handler `emblem_download` (i.e. when requesting the emblem of a nonexistent guild). (#3203)
- Fixed the unit-specific `dmg_taken_rate` getting ignored in favor of the database-defined value (mostly when using `setunitdata(UDT_DAMAGE_TAKEN_RATE, ...)`. (#3202)
- Added the missing documentation for the `openbank()` script command. (#3201)
- Fixed handling of multiple RoDEX item claim requests (such as when retrieving multiple attachments at once) by queuing up the requests. (#3189, issues #3186, 3009)

## [v2023.04.12] `April 12 2023`

Note: everything included in this release is part of PR #3198 which consists of 301 commits. To avoid extreme redundancy the PR link will not be repeated for each line of the changelog.

### Added

- Added a brand new fourth server (api-server) to support HTTP-based client features as well as, potentially, third party tools
  - The api-server listens by default on port 7121.
  - The server is a separate process and can be started in the same way as login, char and map servers.
  - Configuration can be found in `conf/api/` and supports the same import mechanism as the other servers.
  - HPM plugins are supported in the same way as login, char and map servers and sample plugins are included.
  - The api-server can be customized (i.e. through HPM plugins) to provide an easily accessible HTTP API for use by third party tools that want to communicate with the Hercules server.
  - The server offers some built-in basic protection (limiting connections by IP, limiting request and headers size, trusted IPs, etc.), but as with any externally exposed service, caution is recommended, and a system administrator should decide whether it is necessary to use additional forms of filtering (such as a judiciously configured reverse proxy or web application firewall) for public deployments.
  - The connection interfaces are as follows:
    - client - api-server (`aclif`)
    - login-server (`lapiif`) - api-server (`aloginif`)
    - char-server (`capiif`) - api-server
    - map-server (`mapiif`) - api-server
  - The http parser library can be switched at compile time to llhttp (`--with-http_parser=llhttp`) and defaults to `http-parser` (`--with-http_parser=http-parser`)
  - Visual Studio solutions have been updated (as a best-effort approach, those files are unmaintainable and are looking to be replaced by a generator such as CMake in order to avoid repetition and desynchronization). Xcode project has not been updated at the current time.
  - Some parameters can be edited at compile time to alter various behaviors. See `src/api/aclif.h`, `src/api/httpsender.h`, `src/api/mimepart.h`, `common/apipackets.h` for a list of macros that can be redefined (undocumented and may have unexpected side-effects, edit after familiarizing with the code that uses them).
- Added support for user configuration in clients that support the HTTP API at the `/userconfig/load` and `/userconfig/save` endpoints
  - emotes are persisted by the char server into the `emotes` table (SQL migration is included), default emotes can be edited in `conf/emotes.conf`
  - hotkeys (v1) are currently not supported
  - hotkeys (v2) are persisted by the char server into the `hotkeys` table (SQL migration is included)
- Added support for character settings in clients that support the HTTP API at the `/charconfig/load` endpoint
- Added support for guild emblems in clients that support the HTTP API at the `/emblem/upload` and `/emblem/download` endpoints
  - Supports BMP (static) and GIF (static or animated) emblems
  - The `emblem_data` field in the `guild` table has been changed to a `mediumblob` (SQL migration is included)
  - Validation parameters can be changed in `conf/common/emblems.conf`
- Added support for party/adventurer agency functions in clients that support the HTTP API at the `/party/list`, `/party/get`, `/party/add`, `/party/del` endpoints
  - Search is currently not supported
  - Adventurer agency data is persisted by the char server into the `adventurer_agency` table (SQL migration is included)
  - A new module (`int_adventurer_agency`) has been added to the char server
- Added the following third party libraries, used by the api-server:
  - http-handler from the node-js http-parser (`3rdparty/http-parser`)
  - multipart-parser (`3rdparty/multipart-parser`)
  - cJSON (`3rdparty/cJSON`)
  - llhttp (`3rdparty/llhttp`)
  - GIFLIB (`3rdparty/libgif`)
- Extended the SQL interface with the `SQL->QueryStrFetch()` method, to execute a query and fetch a row.
- Added support for sending/receiving chunked packets (for sending and receiving packets that would exceed the maximum packet size)
  - See related macros in `src/common/chunked/rfifo.h` and `src/common/chunked/wfifo.h`
  - Tests are included, in `src/test/test_chunked.c`
  - Chunked packets are usable for both server-server and client-server communication
- Added `extraconf` interface (currently supporting `conf/common/emblems.conf`) for configuration files used by multiple servers

### Changed

- The `create_session()` function is now part of the socket interface and adds support for configurable connection and termination handlers.
- The `delete_session()` function is now part of the socket interface.
- Updated token generation in the login server to support communication with the API server.
- Updated gitignore with temporary files from python and ccache.
- Updated handling of packet `CZ_REQ_GUILD_EMBLEM_IMG` (now `PACKET_CZ_REQ_GUILD_EMBLEM_IMG1`) to use the struct format and added the `PACKET_CZ_REQ_GUILD_EMBLEM_IMG2` and `CZ_REQ_GUILD_EMBLEM_IMG3` variants.
- Updated handling of packets `ZC_CHANGE_GUILD`, `ZC_GUILD_EMBLEM_IMG`, `CHARMAP_GUILD_EMBLEM`, `CHARMAP_GUILD_INFO`, `CHARMAP_GUILD_INFO_EMPTY`, `MAPCHAR_GUILD_EMBLEM` to use the struct format.
- Updated packets `ZC_CHANGE_GUILD`, `ZC_GUILD_EMBLEM_IMG`.
- Renamed `clif->guild_emblem_area()` into `clif->guild_emblem_id_area()`.
- Renamed `DEFAULT_AUTOSAVE_INTERVAL` to `DEFAULT_CHAR_AUTOSAVE_INTERVAL` and `DEFAULT_MAP_AUTOSAVE_INTERVAL` to avoid conflicting definitions of the same macro.
- Extended the `console.console_msg_log` (`conf/global/console.conf`) setting to work on all servers instead of just the map server.
  - Log filenames will be named accordingly: `log/login-msg_log.log`, `log/char-msg_log.log`, `log/map-msg_log.log`, `log/api-msg_log.log`.
- Changed `emblem_data` in `struct guild` to be a pointer instead of a fixed size array (this may require updates to any custom code copying or allocating/deallocating the struct).
- Switched to python3 for all the debian/ubuntu jobs in Gitlab-CI
- Enabled memory leak on exit checks to the address sanitizer configuration for CI builds

### Fixed

- Fixed a compilation error with ccache.
- Fixed packetvers in `clif_friendslist_send()`.

## [v2023.03.08] `March 08 2023`

### Added

- Added documentation for include overrides in configuration files (#3191)
- Implemented the DynamicNPC Create request packets and the related script command `dynamicnpcresult()`. An example can be found in `npc/other/dynamicnpc_create.txt`. (#3192)
- Implemented support for the GoldPC UI (a.k.a. Mileage), disabled by default, which can be enabled from `conf/map/battle/feature.conf` for packetver `20140611` and newer. (#3192)
  - The initial implementation includes two modes (single and double), configurable in `db/goldpc_db.conf`, and selectable in `feature.conf`.
  - An example NPC can be found in [doc/sample/goldpc.txt](doc/sample/goldpc.txt), demonstrating the use of the GoldPC system script commands (`setgoldpcmode()`).
  - A custom GoldNPC NPC is spawned by players upon clicking the GoldPC button, see `npc/other/goldpc.txt`.
  - Further documentation of the system is available in [doc/goldpc.md](doc/goldpc.md).

### Changed

- Added paths for include overrides to .gitignore so that they won't show up as untracked in git status or risk getting committed by accident. Those that wish to commit them to their fork are still free to do so by issuing a git add command. (#3191)

### Fixed

- Fixed the `RA_WUGBITE` immobile status (#2813)
- Fixed the `SC_FEINTBOMB` cloak status not working (#2813)
- Fixed an UnknownStatusChange error triggered by `SC__BLOODYLUST` (#2813)

## [v2023.01.11] `January 11 2023`

### Added

- Added a skeleton function for generating an auth token. This doesn't add actual token generation capabilities at this time, but allows plugins to hook into it to implement custom behavior. (#3183)
- Added the missing effects of Fire Expansion level 3 and 4 (#2920)

### Changed

- Changed `validateinterfaces.py` to run on python3. (#3185)
- Changed the CI builds to use python3 instead of python2, as it's getting removed by linux distributions including debian unstable. (part of #3185)
- Changed the `show_monster_hp_bar` option to show the HP bar on WoE guardians when it's enabled for Emperium (flag '2', disabled by default) instead of when it's enabled for MvPs/bosses (flag '4', also disabled by default.) (#2931, related to #2008, #2912)

### Fixed

- Fixed a missing package `php-dom` in CI builds. (part of #3185)

### Other

- Updated copyright headers for year 2023.

## [v2022.12.07] `December 07 2022`

### Added

- Added the `nosendmail` mapflag, adding the ability to prevent players from sending emails (RODEX and classic) from a map. (#2962)
- Added the `item_drop_bonus_max_threshold` configuration flag in `conf/map/battle/drops.conf`, making the item bonus rate cap configurable. (#3136)

### Changed

- Updated `script_commands.txt`, fixing typos and incorrect file names, adding documentation for missing `checkoption()` flags and updating some external URLs. (#3177)

### Fixed

- Added some missing checks for null in `sd->inventory_data` pointers to prevent crashes. (#3176)
- Fixed the item bonus rate cap getting applied to the base item drop rates and the server's drop rate modifiers, making their real values different from what `@mi` shows. The cap now only applies to drop-time bonuses (cash shop SCs, race-specific drop rate modifiers, luk or size custom influence, renewal level modifiers, etc). (part of #3136)

## [v2022.11.02+1] `November 02 2022` `PATCH 1`

### Added

- Added support for newer packetvers/encryption keys/client messages (up to 20221019). (#3174)
- Added support for packet `ZC_SPECIALPOPUP` related to the Special Popup messages. (part of #3174)
- Implemented script command `specialpopup()` to open a popup and/or show a chat text message from the `spopup.lub` file. An example script has been provided in `npc/custom/specialpopup.txt`. (#3174)
- Implemented the `specialpopup` mapflag, to automatically show the popup text configured clientside. All GvG maps have been configured to show popup with type 1. (#3174)

### Changed

- Updated many packets with the correct Zero client packetver checks. (part of #3174)
- Updated GitHub Actions workflows to use the latest packetver. (part of #3174)
- Updated GitHub Actions workflow to include a gcc-12 build. (part of #3174)

### Fixed

- Fixed a conflicting variable name `pinfo`, causing warnings about shadowed variables when building plugins. (part of #3174)

### Removed

- Removed the unused value `vendinglistType` from `enum packet_headers`. (part of #3174)

## [v2022.11.02] `November 02 2022`

### Added

- Updated the map cache and map list with new maps. (#3156)
- Updated the NPC ID constants and Hat effect constants with new IDs. (part of #3156)
- Implemented the package item selection UI for recent clients that support it. (#3158)
  - A new item type, `IT_SELECTPACKAGE` is defined for this purpose (see the `Select_Example1` item).
- Added support for constants and bitmask arrays in `mob_skill_db.conf`, for the `ConditionData`, `val<n>` and `Emotion` fields. (#3164, issue #2768)
- Exposed monster modes (`MD_*` constants) to the script engine. (part of #3164)
- Implemented the `@quest` atcommand, to manipulate a character's quest log. (#3166)
- Implemented the Rebuilding the Destroyed Morroc quests from episode 14.3. Note: the quests (except the reward NPCs) are disabled by default. (#3167)
- Implemented the Enchant User Interface for clients that support it. (#3159)
  - The enchantments are defined in the newly introduced `db/*/enchant_db.conf` database.

### Changed

- Refactored `status->get_sc_def()` and its call chain (including `status->change_start()` and the `sc_start*()` macros to include the skill ID, used for SC immunity checks. (part of #3155)
- Updated the CodeQL GitHub workflow to follow the latest upstream templates. (part of #3169)
- Removed duplication and consolidated the functions of the `itemdb->lookup_const()` / `mob->lookup_const()` functions as `map->setting_lookup_const()`. (part of #3164)
- Moved the function `itemdb->lookup_const_mask()` into the map interface as `map->setting_lookup_const_mask()`. (part of #3164)
- Renamed the `BA_FROSTJOKER` skill and related constant to the official name `BA_FROSTJOKE`. The old name is left behind as a deprecated constant, to ease migration of custom code. (#3170)
- Split `constants.md` into `constants_re.md` and `constants_pre-re.md`, since there are large variations in the available constants and their values between modes. The generator plugin and related CI script have been updated accordingly. (#3171)
- Refactored and simplified some code after the removal of the multi-zone leftovers. (part of #3173)
  - Cheatsheet for updating custom code:
    - `MAX_MAP_SERVERS` has been removed, and any code that used it in a loop needs to be refactored to remove the loop that is no longer necessary.
    - `chr->server[]` has become `chr->map_server` (and it's a single object rather than an array of one element).
    - packet `H->Z` 0x2b04 (`chrif->recvmap()`) has been removed without a replacement as it was never sent.
    - many functions that took a `map_id` / `server_id` argument no longer need it (since it would be always zero). Code that used it likely needs to be refactored or removed.
    - packet `H->Z` 0x2b20 (`chrif->removemap()`) has been removed without a replacement as it was never sent.
    - `mapif->sendallwos()` has been removed without a replacement as it never sent anything since there couldn't be more than one map server connected at any given time.
    - `mapif->sendall()` is replaced by `mapif->send()` (but mind the different return value).
    - `mapif->send()` no longer requires a server id argument since there can only be one (and its return value changed).
    - several pieces of code have been completely removed since they were not reachable through any code path: any custom code part of them was likely never called and can be safely removed.
    - `map->map_db` and any related functions have been removed, as it could never get populated.
    - `chrif->other_mapserver_count` and any related functions have been removed, as it could never become nonzero.
    - packets `Z->H` 0x2b05 and `H->Z` 0x2b06 have been removed as they could never be sent.
    - `chr->search_mapserver()` and `chr->search_default_maps_mapserver()` have been completely overhauled and their purpose is now fulfilled by `chr->mapserver_has_map()` and `chr->find_available_map_fallback()`, with different return values and arguments.
    - the `map_fd` argument has been removed from several non-mapif functions that should have no business with it. The map server's fd can be retrieved through `chr->map_server.fd`, but in most cases it shouldn't be necessary and could be a code smell.
    - the `chrif->changemapserver()` function has been removed with no replacement as it was never called.
    - the `server` field of `struct online_char_data` has been replaced with an enum and renamed to `mapserver_connection`. It no longer encodes the server ID (since it could only be zero) but only the connection state. The old `-2` special value maps to `OCS_UNKNOWN`, `-1` to `OCS_NOT_CONNECTED` and `>= 0` to `OCS_CONNECTED`.
- Moved the `chrif` packet documentation to `packets_chrif_len.h`, where the packet lengths are defined. (part of #3173)

### Fixed

- Fixed/implemented Official behavior for the Golden Thief Bug Card, blocking SCs caused by magic-type skills, regardless of the SC type. (#3155)
  - Exceptions apply: Magnificat, Gloria and Angelus are blocked, even if they aren't magic-type skills.
  - Some skills that would be broken now have temporary workarounds to apply the right behavior if it doesn't match what their type dictates.
  - The `NoMagicBlocked` flag has been removed from skills that no longer require it.
- Fixed the `AttackType` for many skills to match the official value. (part of #3155)
- Fixed the zeny payments through the Stylist UI to be properly logged and count toward achievements. (#3157)
  - This includes a potentially very long running database migration for the logs database (adding the picklog type '5').
- Fixed `PF_SOULCHANGE` to match the official behavior, preventing its use against characters in the Berserk state and against boss monsters and allowing it to disregard `SC_FOGWALL`. (#3160)
- Fixed a case of the Doctor Quest taking items and not rewarding in return, as well as some `delitem()` that aren't executed in the same run loop as `countitem()`. (#3162)
- Fixed some possible exploits in the Pickocked Quest, allowing only one instance of the NPC to be available at any time. (#3162)
- Fixed the Dual Monster Race logic to disregard the relative order of the winning monsters and simplified the script logic. (#3162)
- Fixed Kihop wrongly counting the bearer Taekwon for the bonus calculation. (#3161)
- Fixed the interaction of Lex Aetherna with Freeze and Stone Curse. (#3161)
- Fixed the SP cost behavior for Tarot Card of Fate when under the effect of Service for You. (#3161)
- Fixed the duration of Super Novice's Steel Body when dying at 99% experience. (#3161)
- Fixed the cast time and after cast delay of Napalm Beat. (#3161)
- Fixed `CH_CHAINCRUSH` not working after `MO_COMBOFINISH`. (#3161)
- Fixed several security issues (including a number of false positives) reported by CodeQL (overflows, misleading implicit type conversions, ambiguous regular expressions, etc) and refactored some related code to reduce dangerous variable reuses. (#3169)
- Fixed some cases of movement notifications sent to the client after a monster dies, causing visual glitches such as mobs not cleared and still standing or moving after their death. (#3163, issues #2047, #2109)
- Fixed an integer overflow in the image size for the Macro interface. (#3165)
- Fixed a failed assertion when a quest has 3 objectives. (#3166)
- Fixed various quest related packets sent to the client. (#3166)
  - Fixed the labelling for quests that use monster size, race or element as conditions.
  - Fixed swapped values for the mob size.
  - Fixed the mob ID not being sent for special cases (with map names, races, sizes or elements) and requiring a new log in to see the correct quest objectives.
- Fixed the Zeny retrieval process from RoDEX, causing potential loss of Zeny. (#3168)
- Fixed output character encoding in the `setup_mariadb.ps1` script. (#3172)
- Fixed a buffer overflow in `mapif->rodex_getitemsack()`. (part of #3173)

### Deprecated

- Deprecated the `BA_FROSTJOKER` skill ID and constant, renamed to the official name `BA_FROSTJOKE`. (part of #3170)

### Removed

- Removed the `itemdb->lookup_const()` and `mob->lookup_const()` functions, replaced by `map->setting_lookup_const()`. (part of #3164)
- Removed the `itemdb->lookup_const_mask()` function, replaced by `map->setting_lookup_const_mask()`. (part of #3164)
- Removed support for the deprecated `View` field in the item DB, replaced in 2016 by `ViewSprite` and `SubType` with #1828. (#3170)
- Removed the deprecated constants `Job_Alchem` and `Job_Baby_Alchem`, replaced in 2016 by `Job_Alchemist` and `Job_Baby_Alchemist` with #1088. (#3170)
- Removed the old `VAR_*` setlook constants, deprecated since 2016 with #908. (#3170)
- Removed the `useatcmd()` script command, deprecated in 2017 with #1841. (#3170)
- Removed code (mostly dead code) related to the long unsupported and long broken multi-zone functionality. (#3173)

## [v2022.10.05] `October 05 2022`

### Added

- Added support for `UDT_OPTIONS` to `getunitdata()` and `setunitdata()`, allowing to interact with mobs that are using job sprites. (#3146)
- Implemented the `AllowPlagiarism` `SkillInfo` flag in the skill DB and the `INF2_ALLOW_PLAGIARIZE` source code counterpart, allowing separate per-skill settings for Plagiarize and Reproduce. (#2948)
- Added support for newer packetvers/encryption keys/client messages (up to 20220831). (#3152)
- Added support for preview in the old cash shop packet. This is disabled by default and can be enabled by defining `ENABLE_OLD_CASHSHOP_PREVIEW_PATCH` or through the configure flag `--enable-old-cashshop-preview-patch`. A client patch is necessary, available at http://nemo.herc.ws/patches/ExtendOldCashShopPreview (part of #3152)
- Implemented the Item Reform user interface on supported clients (2020 and newer). The feature can be configured through the `item_reform_info.conf` and `item_reform_list.conf` db files. (#3150)

### Changed

- Replaced use of `safesnprintf()` with the C99 standard `snprintf()`. (part of #3148)
- Improved detection of the usability of `-Wformat-truncation`, disabling it on older gcc versions where it doesn't produce useful warnings. (part of #3148)
- Refactored and fixed some Plagiarize/Reproduce related code. (part of #2948, issue #989)
- Updated the list of third job skills that can be plagiarized. (part of #2948)

### Fixed

- Fixed the gcc version specific GitHub CI builds that were running Ubuntu 21.10, which is EOL. LTS versions are now preferentially used, where possible. (#3147)
- Fixed HWSAPI run failures caused by a missing XML::Parser perl module (872aebe2d3)
- Fixed the `UDT_CLASS` option of `setunitdata()` to set the view data's class if a mob uses a job class ID. (part of #3146)
- Fixed some improper use of `safesnprintf()`/`snprintf()`, potentially causing truncation at the wrong position or buffer overruns. (part of #3148)
- Fixed text in old clients in packet `ZC_NOTIFY_CHAT_PARTY`. (#3149)
- Code style fixes. (part of #3149)
- Fixed an interaction issue between copied (Plagiarize/Reproduce) skills and ones already present in the character's skill list. (part of #2948, issue 2940)

### Removed

- Removed the `safesnprintf()` function, superseded by the C99 standard function `snprintf()`. Note: in case of truncation, `snprintf()` returns the amount of characters that would have been written if the buffer wasn't limited, while `safesnprintf()` returns a negative value. Care should be used when replacing the function in third party code. (#3148)
- Removed the `copyskill_restrict` battle config setting, superseded by the configurable per-skill restrictions. (part of #2948)

## [v2022.06.01] `June 01 2022`

### Added

- Added support for newer packetvers/encryption keys/client messages (up to 20220518). (#3142)
- Added the `mes2()`, `mes2f()`, `next2()` script commands and related packets. (part of #3142)
  - This family of commands is only supported by main clients starting from 20220504, client implementation may be incomplete.
  - The commands work similarly to their respective counterparts without `2`, but will display the window with the NPC messages on the bottom of the screen.
- Added the `setdialogsize()`, `setdialogpos()`, `setdialogpospercent()` script commands, allowing control over the NPC dialog size and position (supported by main clients starting from 20220504). Example scripts are provided in the `custom` folder. (part of #3142)
- Added the `playbgmall2()` script command as an extended version of `playbgmall()` providing looping control (supported by main clients starting from 20220504). (part of #3142)
- Added the `soundeffectall2()` script command as an extended version of `soundeffectall()` providing more precise looping control (supported by main clients starting from 20220504). (part of #3142)
- Added the `PLAY_SOUND_*` constants to be used for the `type` parameter of `soundeffect()` and `soundeffectall()`. (part of #3142)
- Added `pc->bonus_addele()` and `pc->bonus_subele()` to the `pc` interface. (#3139)
- Added `enum instance_window_info_type` to specify the instance destruction reason. (part of #3141)
- Added the `GETHOMINFO_*` constants to be used for the `type` parameter of `gethominfo()`. (#3137, issue #3133)
- Implemented Dynamic NPCs, allowing a script to summon an NPC, only visible to a certain player and automatically despawn it after a certain time.
  - See the `dynamicnpc()` script command as well as the `dynamic_npc_timeout` and `dynamic_npc_range` settings in `conf/map/battle/misc.conf` for details.
  - Example script is provided in the `doc/sample` folder.

### Changed

- Refactored `clif_soulball()` and `clif_spiritball()` into a single function. (#3128)
- Updated handling of various packets (`PACKET_ZC_SPIRITS`, `ZC_SAY_DIALOG`, `ZC_WAIT_DIALOG`, `ZC_PLAY_NPC_BGM`, `CZ_MOVE_ITEM_FROM_BODY_TO_CART`, `ZC_SOUND`, `ZC_BROADCASTING_SPECIAL_ITEM_OBTAIN_item`, `ZC_BUYING_STORE_ENTRY`, `ZC_STORE_ENTRY`, `CZ_PC_PURCHASE_ITEMLIST_FROMMC`, `CZ_PC_PURCHASE_ITEMLIST_FROMMC2`, `ZC_DISAPPEAR_BUYING_STORE_ENTRY`) to use the struct format. (#3128, #3131, #3142)
- Reimplemented the "HWSAPI" build bot functionality (automatic HPM hooks updates, SQL item/mob/mobskill database generation, constants documentation generation) as a GitHub Actions workflow, migrating away from a legacy self-hosted homebrewed buildbot. (#3144)
- Updated CodeQL GitHub Action to v2. (part of #3144)
- Extended the `playbgm()` command with a new `type` parameter providing looping control (supported by main clients starting from 20220504). Example scripts are provided in the `npc/custom` folder. (part of #3142)
- Extended the `soundeffect()` command with a new `term` parameter providing more precise looping control (supported by main clients starting from 20220504). Example scripts are provided in the `npc/custom` folder. (part of #3142)
- Updated packetver in the CI builds to the most recent one. (part of #3142)
- Updated libbacktrace. (part of #3142)
- Replaced clang-13 with clang-15 in the GitHub Actions CI builds. (part of #3142)
- Suppressed some warnings in libconfig when compiling with clang-15. (part of #3142)
- Renamed the `CZ_SEE_GUILD_MEMBERS` packet into its official name `CZ_APPROXIMATE_ACTOR`. (part of #3142)
- Updated `clif->package_announce()` (and the `ZC_BROADCASTING_SPECIAL_ITEM_OBTAIN_item` packet) to include the item refine level when supported by the client. (part of #3142)
- Improved type safety of `vending->purchase()`. (part of #3131)

### Fixed

- Fixed an issue where the item is changed/deleted before the status update is sent to the grade enchant UI, resulting in wrong or missing information. (#3140)
- Fixed a missing include preventing compilation or loading of HPM plugins. (#3129)
- Fixed mercenaries showing with the "Unknown" name when idling, spawning or walking. (#3143)
- Fixed `clif->item_movefailed()` (and the `ZC_MOVE_ITEM_FAILED` packet) to send the correct item amount. (part of #3142)
- Fixed `soundeffect()` and `soundeffectall()`'s `PLAY_SOUND_REPEAT` mode not working as intended. (part of #3142)
- Changed many scripts that were incorrectly using the `PLAY_SOUND_REPEAT` mode of `soundeffect()` to `PLAY_SOUND_ONCE`, as their behavior was equivalent before. (part of #3142)
- Fixed a missing linebreak in the nullpo callback console error message. (part of #3142)
- Fixed some issues around instance destruction, causing visual glitches and assertion failures. (#3141)
  - When characters were moved out of an instance at its expiration, they were receiving information that the instance went idle rather than destroyed.
  - When a character had a Player type instance attached, it would still receive instance info on login even after the instance was destroyed.
  - When reloading scripts after playing an instance, an assertion was failing.
  - When shutting down the server after playing an instance, an assertion was failing.
  - In some cases, the wrong reason code was provided on instance destruction.

## [v2022.04.07] `April 07 2022`

### Added

- Added support for newer packetvers/encryption keys/client messages (up to 20220316). (#3123)
- Added support for `REMOVE_MOUNT_WUG` in `PACKET_CZ_UNINSTALLATION`. (part of #3123)
- Added the `openbank()` script command to open the Bank UI on packetver 20150128 and newer. (part of #3123)
- Added support for the `Item` skill type to the skill database. (part of #3123)
- Fixed `clif->wis_message()` for packetvers starting from 20131204. (part of #3123)
- Fixed `clif->equipitemack()` for some 2010 and 2012 packetvers. (part of #3123)

### Changed

- Split the intif, inter and chrif packet lengths to separate files, removing the hand-written packet length arrays. (#3122)
- Moved the packet related macros from `packetsstatic_len.h` to a dedicated header, `packetsmacro.h`. (part of #3122)
- Updated handling of various packets (`CZ_CONTACTNPC`, `ZC_ATTACK_FAILURE_FOR_DISTANCE`, `ZC_START_CAPTURE`, `ZC_TRYCAPTURE_MONSTER`, `ZC_PROPERTY_PET`, `ZC_CHANGESTATE_PET`) to use the struct format. (#3126 and part of #2123)
- Updated/added some packet and enum values. (part of #1234)
  - Renamed:
    - Many client message IDs were renamed in commit (too many to list them here, see commit 37771a82da).
    - `ZC_USESKILL_ACK::unknown` -> `ZC_USESKILL_ACK::attackMT`
    - `PACKET_CZ_UNINSTALLATION::packetType` -> `PACKET_CZ_UNINSTALLATION::PacketType`
    - `PACKET_CZ_UNINSTALLATION::action` -> `PACKET_CZ_UNINSTALLATION::InstallationKind`
    - `REMOVE_MOUNT_2` -> `REMOVE_MOUNT_WUG`
    - `PACKET_ZC_WHISPER::name` -> `PACKET_ZC_WHISPER::sender`
  - Added:
    - Missing values in `enum useskill_fail_cause`
    - Missing values in `enum map_type`
    - `CZ_CONFIG_STORE_ASSISTANT_FEE` in `enum CZ_CONFIG`
    - `CZ_BANK_UI` and `CZ_ZENY_LOTTO_UI` in `enum cz_ui_types`
    - Missing values in `enum delitem_reason`
    - `INF_ITEM_SKILL` and `INF_UNKNOWN` in `enum e_skill_inf`
    - `OPT1_NONE` and `OPT2_NORMAL` as empty values for `enum e_opt1` and `enum e_opt2` respectively
    - `INVTYPE_WORLD_STORAGE` in `enum inventory_type`
    - `OPT3_ELEMENTAL_VEIL` in `enum e_opt3`
    - Missing values in `enum emotion_type`
    - `ACT_ATTACK_MULTIPLE_CRITICAL` and `ACT_SPLASH_NOMOTION` in `enum action_type`
- Updated main Readme file. Replaced TravisCI build badge with GitHub Actions badge and added Discord invitation link. (#3124)

### Fixed

- Fixed the sample plugin failing to compile in Visual Studio. (part of #3123)
- Added the SQL script checks to the GitHub actions CI (restored functionality previously present in TravisCI). Updated the SQL analyzer tool and switched to open composer. (part of #3123)

## [v2022.03.02] `March 02 2022`

### Added

- Added support for custom compiler flags in each plugin individually, specified within the .c file and tagged with `#PLUGINFLAGS`. See the example in the sample plugin for more details. (#3110)
- Added support for newer packetvers/encryption keys/client messages (up to 20220216). (#3112)
  - Added packet `CZ_SEE_GUILD_MEMBERS`
- Extended the itemdb2sql generator to include the `gradeable`, `keepafteruse`, `dropannounce`, `showdropeffect`, `dropeffectmode`, `ignorediscount`, `ignoreovercharge`, `rental_start_script`, `rental_end_script` columns (#3117)
- Added GitHub CI builds with some old gcc and clang versions. (part of #3118)
- Added support for loading maps with RSW format 2.6. (#3119)
- Added several new maps to the index and mapcache. (part of #3119)
- Added new NPC sprite and hat effect IDs to the constants database. (part of #3119)
- Added `common/packet_struct.h` for inter-server packet definitions. (#3120)

### Changed

- Added a missing nullpo check in clif.c. (#3114)
- Fixed some packet header and field names and added the struct definition for some missing ones. (#3107 and #3112)
  - Symbol renames cheatsheet:
    - `ZC_PAR_CHANGE1` -> `ZC_PAR_CHANGE`
    - `ZC_LONGPAR_CHANGE` -> `ZC_LONGLONGPAR_CHANGE`
    - `packet_npc_market_purchase` -> `PACKET_CZ_NPC_MARKET_PURCHASE`
    - `ZC_OPEN_UI` -> `ZC_UI_OPEN`
    - `clif->zc_say_dialog_zero1()` -> `clif->zc_quest_dialog()`
    - `clif->zc_say_dialog_zero2()` -> `clif->zc_monolog_dialog()`
    - `clif->zc_menu_list_zero()` -> `clif->zc_quest_dialog_menu_list()`
    - `ZC_ACK_REQNAME_TITLE` -> `ZC_ACK_REQNAMEALL_NPC`
    - `ZC_CAMERA_INFO` -> `ZC_VIEW_CAMERAINFO`
    - `ZC_ITEM_PREVIEW` -> `ZC_CHANGE_ITEM_OPTION`
    - `ZC_ENCHANT_EQUIPMENT` -> `ZC_UPDATE_CARDSLOT`
    - `ZC_SERVICE_MESSAGE_COLOR` -> `ZC_DEBUGMSG`
    - `CZ_START_USE_SKILL` -> `CZ_USE_SKILL_START`
    - `CZ_STOP_USE_SKILL` -> `CZ_USE_SKILL_END`
    - `ZC_INVENTORY_EXPANSION_INFO` -> `ZC_EXTEND_BODYITEM_SIZE`
    - `ZC_ACK_INVENTORY_EXPAND` -> `ZC_ACK_OPEN_MSGBOX_EXTEND_BODYITEM_SIZE`
    - `ZC_ACK_INVENTORY_EXPAND_RESULT` -> `ZC_ACK_EXTEND_BODYITEM_SIZE`
    - `CZ_INVENTORY_EXPAND` -> `CZ_REQ_OPEN_MSGBOX_EXTEND_BODYITEM_SIZE`
    - `CZ_INVENTORY_EXPAND_CONFIRMED` -> `CZ_REQ_EXTEND_BODYITEM_SIZE`
    - `CZ_INVENTORY_EXPAND_REJECTED` -> `CZ_CLOSE_MSGBOX_EXTEND_BODYITEM_SIZE`
    - `ZC_NPC_BARTER_OPEN` -> `ZC_NPC_BARTER_MARKET_ITEMINFO`
    - `CZ_NPC_BARTER_CLOSE` -> `CZ_NPC_BARTER_MARKET_CLOSE`
    - `CZ_NPC_BARTER_PURCHASE` -> `CZ_NPC_BARTER_MARKET_PURCHASE`
    - `CZ_PING` -> `CZ_PING_LIVE`
    - `CZ_COOLDOWN_RESET` -> `CZ_CMD_RESETCOOLTIME`
    - `CZ_STYLE_CLOSE` -> `CZ_CLOSE_UI_STYLINGSHOP`
    - `ZC_LOAD_CONFIRM` -> `ZC_NOTIFY_ACTORINIT`
    - `ZC_REFINE_OPEN_WINDOW` -> `ZC_OPEN_REFINING_UI`
    - `CZ_REFINE_ADD_ITEM` -> `CZ_REFINING_SELECT_ITEM`
    - `ZC_REFINE_ADD_ITEM` -> `ZC_REFINING_MATERIAL_LIST`
    - `CZ_REFINE_ITEM_REQUEST` -> `CZ_REQ_REFINING`
    - `CZ_REFINE_WINDOW_CLOSE` -> `CZ_CLOSE_REFINING_UI`
    - `ZC_REFINE_STATUS` -> `ZC_BROADCAST_ITEMREFINING_RESULT`
    - `ZC_HAT_EFFECT` -> `ZC_EQUIPMENT_EFFECT`
    - `ZC_GUILD_CASTLE_LIST` -> `ZC_GUILD_AGIT_INFO`
    - `CZ_CASTLE_TELEPORT_REQUEST` -> `CZ_REQ_MOVE_GUILD_AGIT`
    - `ZC_CASTLE_TELEPORT_RESPONSE` -> `ZC_REQ_ACK_MOVE_GUILD_AGIT`
    - `ZC_CASTLE_INFO` -> `ZC_REQ_ACK_AGIT_INVESTMENT`
    - `CZ_CASTLE_INFO_REQUEST` -> `CZ_REQ_AGIT_INVESTMENT`
    - `ZC_LAPINEDDUKDDAK_OPEN` -> `ZC_RANDOM_COMBINE_ITEM_UI_OPEN`
    - `CZ_LAPINEDDUKDDAK_CLOSE` -> `CZ_RANDOM_COMBINE_ITEM_UI_CLOSE`
    - `CZ_LAPINEDDUKDDAK_ACK` -> `CZ_REQ_RANDOM_COMBINE_ITEM`
    - `ZC_LAPINEDDUKDDAK_RESULT` -> `ZC_ACK_RANDOM_COMBINE_ITEM`
    - `CZ_REQ_MOUNTOFF` -> `CZ_UNINSTALLATION`
    - `CZ_SE_CASHSHOP_LIMITED_REQ` -> `CZ_GET_ACCOUNT_LIMTIED_SALE_LIST`
    - `CZ_NPC_EXPANDED_BARTER_CLOSE` -> `CZ_NPC_EXPANDED_BARTER_MARKET_CLOSE`
    - `ZC_NPC_EXPANDED_BARTER_OPEN` -> `ZC_NPC_EXPANDED_BARTER_MARKET_ITEMINFO`
    - `CZ_NPC_EXPANDED_BARTER_PURCHASE` -> `CZ_NPC_EXPANDED_BARTER_MARKET_PURCHASE`
    - `ZC_LAPINEUPGRADE_OPEN` -> `ZC_RANDOM_UPGRADE_ITEM_UI_OPEN`
    - `ZC_LAPINEUPGRADE_RESULT` -> `ZC_ACK_RANDOM_UPGRADE_ITEM`
    - `CZ_LAPINEUPGRADE_CLOSE` -> `CZ_RANDOM_UPGRADE_ITEM_UI_CLOSE`
    - `CZ_LAPINEUPGRADE_MAKE_ITEM` -> `CZ_REQ_RANDOM_UPGRADE_ITEM`
    - `CZ_CAPTCHA_REGISTER` -> `CZ_REQ_UPLOAD_MACRO_DETECTOR`
    - `ZC_CAPTCHA_UPLOAD_REQUEST` -> `ZC_ACK_UPLOAD_MACRO_DETECTOR`
    - `CZ_CAPTCHA_UPLOAD_REQUEST_ACK` -> `CZ_UPLOAD_MACRO_DETECTOR_CAPTCHA`
    - `ZC_CAPTCHA_UPLOAD_REQUEST_STATUS` -> `ZC_COMPLETE_UPLOAD_MACRO_DETECTOR_CAPTCHA`
    - `CZ_MACRO_REPORTER_ACK` -> `CZ_REQ_APPLY_MACRO_DETECTOR`
    - `ZC_MACRO_REPORTER_STATUS` -> `ZC_ACK_APPLY_MACRO_DETECTOR`
    - `ZC_MACRO_DETECTOR_REQUEST` -> `ZC_APPLY_MACRO_DETECTOR`
    - `ZC_MACRO_DETECTOR_REQUEST_DOWNLOAD` -> `ZC_APPLY_MACRO_DETECTOR_CAPTCHA`
    - `CZ_MACRO_DETECTOR_DOWNLOAD` -> `CZ_COMPLETE_APPLY_MACRO_DETECTOR_CAPTCHA`
    - `ZC_MACRO_DETECTOR_SHOW` -> `ZC_REQ_ANSWER_MACRO_DETECTOR`
    - `CZ_MACRO_DETECTOR_ANSWER` -> `CZ_ACK_ANSWER_MACRO_DETECTOR`
    - `ZC_MACRO_DETECTOR_STATUS` -> `ZC_CLOSE_MACRO_DETECTOR`
    - `CZ_CAPTCHA_PREVIEW_REQUEST` -> `CZ_REQ_PREVIEW_MACRO_DETECTOR`
    - `ZC_CAPTCHA_PREVIEW_REQUEST` -> `ZC_ACK_PREVIEW_MACRO_DETECTOR`
    - `ZC_CAPTCHA_PREVIEW_REQUEST_DOWNLOAD` -> `ZC_PREVIEW_MACRO_DETECTOR_CAPTCHA`
    - `CZ_MACRO_REPORTER_SELECT` -> `CZ_REQ_PLAYER_AID_IN_RANGE`
    - `ZC_MACRO_REPORTER_SELECT` -> `ZC_ACK_PLAYER_AID_IN_RANGE`
    - `ZC_PARTY_MEMBER_JOB_LEVEL` -> `ZC_NOTIFY_MEMBERINFO_TO_GROUPM`
    - `ZC_TAKEOFF_EQUIP_ALL_ACK` -> `ZC_ACK_TAKEOFF_EQUIP_ALL`
    - `ZC_SAY_DIALOG_ZERO1` -> `ZC_QUEST_DIALOG`
    - `ZC_SAY_DIALOG_ZERO2` -> `ZC_MONOLOG_DIALOG`
    - `ZC_MENU_LIST_ZERO` -> `ZC_QUEST_DIALOG_MENU_LIST`
    - `ZC_SAY_DIALOG_ALIGN` -> `ZC_DIALOG_TEXT_ALIGN`
    - `CZ_GRADE_ENCHANT_ADD_ITEM` -> `CZ_GRADE_ENCHANT_SELECT_EQUIPMENT`
    - `ZC_GRADE_ENCHANT_ADD_ITEM_RESULT` -> `ZC_GRADE_ENCHANT_MATERIAL_LIST`
    - `CZ_GRADE_ENCHANT_START` -> `CZ_GRADE_ENCHANT_REQUEST`
    - `CZ_GRADE_ENCHANT_CLOSE` -> `CZ_GRADE_ENCHANT_CLOSE_UI`
    - `ZC_GRADE_ENCHANT_RESULT` -> `ZC_GRADE_ENCHANT_ACK`
    - `ZC_GRADE_STATUS` -> `ZC_GRADE_ENCHANT_BROADCAST_RESULT`
- Updated handling of various packets (`ZC_PC_PURCHASE_ITEMLIST_FROMMC`, `ZC_SHOW_IMAGE`, `PACKET_ZC_WHISPER`, `ZC_UPDATE_GDID`) to use the struct format. (part of #3112)
- Improved support of the `ZC_SE_CASHSHOP_OPEN` for clients between 2014 and 2022. (part of #3112)
- Improved handling of customized `MAX_MVP_DROP` and `MAX_MOB_DROP` values in the modbb2sql generator. (part of #3117)
- Split the mapinit interface setup into a separate `mapit_defaults()` function. (part of #3118)
- Renamed struct `irc_bot_interface` into `ircbot_interface` (part of #3118)
- Improved the interface validation script to better detect errors and missing interface methods. (#3118)
- Updated the inter-server packet `INTER_CREATE_PET` to use the struct format. (part of #3120)

### Fixed

- Updated the address sanitizer library version for gcc-snapshot ci builds. (#3113)
- Fixed the item grade information lost from mail attachments when using the old mail system. (#3116)
- Fixed an uninitialized send buffer in `PACKET_ZC_ADD_EXCHANGE_ITEM` causing memory garbage to be sent to the client. (part of #3116)
- Limited the maximum string length in the script command `gettimestr()` to 1023 characters, preventing a rogue script from allocating gigabytes of memory with a single command. (part of #3116)
- Fixed some missing methods from interfaces or direct calls that bypassed the interfaces. (part of #3118)
- Fixed possible buffer overflows in clif.c and pc.c (part of #3118)
- Fixed some visual options (such as `SC_BLIND`) not getting re-sent to the client after using `@refresh`. (#3121, issue #2706)

## [v2022.01.05+2] `January 05 2022` `PATCH 2`

### Fixed

- Fixed a missing quantity in the cart item data sent to the client. (#3105)

## [v2022.01.05+1] `January 05 2022` `PATCH 1`

### Added

- Added the `GCC10ATTR()` macro, to declare an `__attribute__` annotation only in GCC >= 10.0. (part of #3104)

### Fixed

- Fixed a missing header causing HPM compilation failures. (#3104)
- Fixed warnings on GCC 9 and older versions. (part of #3104)

## [v2022.01.05] `January 05 2022`

### Added

- Added the `PRAGMA_GCC7()` macro, to specify pragma instructions only active on GCC >= 7.0 (part of #3092)
- Added the `GCCATTR()` macro, to declare an `__attribute__` annotation only in GCC and not in Clang. (part of #3092)
- Added the `GCC11ATTR()` macro, to declare an `__attribute__` annotation only in GCC >= 11.0. (part of #3092)
- Added `grfio_decode_filename()` to the grfio interface. (part of #3092)
- Added configurable steps for the roulette system. See the serverside configuration in `conf/map/battle/roulette.conf` and the clientside patches at http://nemo.herc.ws/patches/ChangeRouletteBronzeLimit http://nemo.herc.ws/patches/ChangeRouletteGoldLimit and http://nemo.herc.ws/patches/ChangeRouletteSilverLimit for more details. (#3101)
- Added support for newer 2021 packetvers/encryption keys/client messages (up to 20211229). (#3103)
- Implemented the Grade Enchanter user interface: (#3100)
  - A new configuration flag `features.grader_max_used` is added to feature.conf.
  - The `map_log.enable` flag in logs.conf has been extended with a new value.
  - The grade enchanting database has been implemented in `db/{pre-re,re}/grade_db.conf`.
  - the `@gradeui` and `@reloadgradedb` atcommands have been added.
  - The `opengradeui()` script command has been added.
  - The Grade Enchanter NPC has been added (automatically loaded in Renewal mode on packetvers that support it) in `npc/re/other/grader.txt`.
  - NOTE: The values in the database aren't currently official but guessed.
  - NOTE: Item protection is not supporter on older clients.
  - NOTE: This requires a database migration for the picklog and zenylog tables. The migration shouldn't cause a full table rebuild on recent versions of MySQL and MariaDB that allow appending new values to the end of enums.

### Changed

- Updated GitHub Actions: (#3092)
  - Updated compilers (Clang 13 replaces Clang 10, the current GCC version and the current snapshot version replace respectively GCC 9 and GCC 10).
  - Updated packetvers to the most recent ones.
  - Updated database versions (MariaDB 10.2 is added alongside 'latest', while 10.1 and 10.5 are removed; MySQL 'latest' is added alongside 5.6 and 5.7).
- Updated configure.ac to require at least Autoconf 2.69 (the current configure file is generated by Autoconf 2.71). This only affects developers who want to regenerate their configure script. (part of #3092)
- Updated the warning flags in the configure script with new ones for recent versions of GCC and Clang. (part of #3092)
- Added annotation attributes to the functions in memmgr and strlib and some other prtinf-like functions. (part of #3092)
- Changed the memory allocation functions to never return a NULL pointer. (part of #3092)
  - `iMalloc->malloc()` (and functions or macros that use it such as `aMalloc()`, `CREATE()`, `aCalloc()`, `aStrndup()`, etc) will abort completely instead of returning NULL if `malloc()` fails.
  - `iMalloc->malloc()` (and functions or macros that use it) will allocate a 1-byte buffer if requested to allocate 0 bytes.
- Improved several packet generation functions, removing an unnecessary memcpy. (#3102)

### Fixed

- Fixed an issue that caused the script conditional feature checks to always be true (i.e. make the setting to disable the GM management scripts ineffective). (#3096)
- Fixed `MO_CALLSPIRITS` in `bAutoSpell` (such as the Greatest General card) to use the specified skill level instead of the currently learned level. (#3095)
- Fixed an error when saving the homunculus exp when reaching the maximum level through `@homlevel`. (#3098, issue #3097)
- Fixed various possible buffer overflows and other warnings reported by recent versions of GCC and Clang. (part of #3092)
- Fixed a memory issue caused by reloading the git/svn information on non-windows platforms where it's generated at compile time. (part of #3092)
- Fixed the SP bar not correctly updating for party and battleground team members in the 2021 clients that support it. (part of #3103)
- Fixed the weight in the expanded barter shop for 2019 and older clients. (part of #3103)
- Fixed the Doram skill Picky Peck `SU_PICKYPECK` to be affected by Spirit of Life `SU_SPIRITOFLIFE`. (#3018)
- Fixed the double cast activation chance of the skills Picky Peck `SU_PICKYPECK` and Bite `SU_BITE`. (part of #3018)

### Other

- Updated copyright headers for year 2022.

## [v2021.12.01] `December 01 2021`

### Added

- Added support for Visual Studio 2022 - the solution is called Hercules-17.sln (#3087)
- Added error reporting to the console when Zlib fails to decompress data. (#3090)
- Added detection of a mismatched Zlib dynamic library vs the header used when compiling and reporting of the current version on startup. (part of #3090)
- Added support for a number of 2020 and 2021 packetvers/encryption keys/client messages, including several Zero clients (up to 20211118). (#3082)
- Added support for the item grade feature: (part of #3082)
  - Added support to the relevant packets in compatible packetvers (generally starting with RE 20200723 or main 20200916)
  - Implemented saving into the database (database migration required)
  - Added the `@grade` atcommand.
  - Added the item DB flag `Gradable` to enable grading support for individual item IDs. and the `ITEMINFO_FLAG_NO_GRADE` to the `getiteminfo()` and `setiteminfo()` commands.
  - Added the `MAX_ITEM_GRADE` constant to the script engine.
  - Added the `@inventorylist_grade[]` output variable to `getinventorylist()`.
  - Added the `@cartinventorylist_grade[]` output variable to `getcartinventorylist()`.
  - Added the `setgrade()` script (item DB script) command.
  - Added the `getequipisenablegrade()` and `getequipgrade()` general script commands.
- Added the `@unequipall` atcommand and the corresponding client packet for 20210818 and newer clients. (part of #3082)
- Added the `zmes1()`, `zmes1f()`, `zmes2()`, `zmes2f()`, `zmenu()`, `zselect()`, `zprompt()` commands as counterparts using the Zero UI to the respective commands without the z prefix. Demo scripts are provided to showcase the functionality. (part of #3082)
- Added the `setdialogalign()` script command to specify the text alignment in NPC dialogs. (part of #3082)
- Added an optional argument to display a light pillar visual effect on the item created through `makeitem()`. (#3065)
- Added the `active_transform()` script command, behaving like `montransform()` but with a different, stackable SC. (#3073, issue #2035)

### Changed

- Improved detection of recent versions of Windows for the system information screen. (part of #3087)
- Updated the documentation of the Item DB structure to include all the new fields. (#3085)
- Updated handling of several packets (`ZC_EQUIPWIN_MICROSCOPE`, `ZC_NOTIFY_HP_TO_GROUPM`, `ZC_BATTLEFIELD_NOTIFY_HP`) to use the struct format. (part of #3082)
- Refactored `clif_updatestatus()` and updated to use packet names instead of numeric IDs. (part of #3082)

### Fixed

- Fixed the `countnameditem()` command never matching any items and always returning 0. (#3088)
- Fixed an issue causing a failure to compressing captcha images on non-Windows systems. (#3091)
- Fixed issues with packet `ZC_EQUIPWIN_MICROSCOPE` for old clients. (part of #3082)
- Fixed the use of integer variables (as opposed to integer literals) in the `rodex_sendmail()` script command. (#3067, issue #3027)

### Removed

- Removed Visual Studio 2015 (Hercules-14.sln) solution. Developers still using it are advised to upgrade to a newer version or to switch to GCC since backward compatibility won't be guaranteed. (part of #3087)

### Other

- The wiki page about supported platforms has been updated, as it had been neglected for a while. Notable changes:
  - Debian 11 was added, kicking out Debian 9 (no policy changes)
  - The CentOS/RHEL support policy was changed, since there no longer are matching CentOS and RHEL regular releases. This means that RHEL support cannot be guaranteed and the only CentOS version that is officially supported is CentOS Stream (and CentOS 8 until it will be EOL on December 31st)
  - Ubuntu 21.10 was added and Ubuntu 18.04 was removed (no policy changes)
  - FreeBSD 13.0 was added, kicking out FreeBSD 11.x; 12.x versions older than 12.2 are unsupported (no policy changes)
  - macOS 10.15, 11 and 12 have been added, kicking out macOS 10.13 and 10.14. GCC (latest version installed through Homebrew) is also supported as an alternative to Clang shipped with XCode. The total amount of supported versions has been increased from 2 to 3.
  - The currently supported OpenBSD version has been updated to 7.0 (no policy changes)
  - The currently supported NetBSD version has been updated to 9.2 (no policy changes)
  - The currently supported Raspberry Pi OS version has been updated to 11 (bullseye). The supported distribution is now labeled Raspberry Pi OS, rather than Raspbian, following the official naming.
  - Windows 11 21H2, Windows 10 21H2, Windows Server 2019, Windows Server v.20H2 and Windows Server 2022 were added. No policy changes but a note was added to discourage running Hercules on Windows on production servers.
  - Visual Studio 2022 17.0 was added, kicking out Visual Studio 2015. No policy changes.

## [v2021.11.03+1] `November 03 2021` `PATCH 1`

### Fixed

- Fixed a regression in the mob drop rate bonus calculation, always overriding it to 900%. (#3083)

## [v2021.11.03] `November 03 2021`

### Added

- Implemented support for conditional comments in the script engine's parser, allowing to exclude blocks of code (including top-level commands) from parsing based on a condition, in a similar fashion to ifdef directives in the C preprocessor. See [doc/script_commands.txt](doc/script_commands.txt) and the pull request description for detailed information on their use. (#3080)
- Added a setting to prevent the GM administration NPCs from loading (leveraging conditional comments). (part of #3080)
  - See `script_configuration.load_gm_scripts` in `conf/map/script.conf`.
  - The provided administrative NPCs have been updated to support this setting and third party scripters that want to do the same can put their administrative NPCs behind conditional comments controlled by the `LOADGMSCRIPTS` feature (see [doc/script_commands.txt](doc/script_commands.txt) for details.
- Implemented the `bSubSkill` item bonus, reducing damage in percentage from the specified skill. (#2970)
- Implemented the `bDropAddRace` item bonus, increasing item drop rate in percentage when killing monsters of the specified race. (part of #2970)
- Implemented the Star Emperor and the Soul Reaper job classes and their respective skills. (#3030)
- Implemented an option to ignore the Discount and Overcharge effect for a given item ID. See the Item DB flags `IgnoreDiscount` and `IgnoreOvercharge` respectively. (#3060, issue #3055)
- Implemented an SC config option `HasVisualEffect` to indicate that a skill displays a visual effect on the affected unit, de-hardcoding it from source. (#3061)
- Implemented the Instant kill state (`/item onekillmonster`), allowing GMs to kill mobs in one hit (the `@killmonster` permission is necessary). (#3063)
- Implemented support for loading captcha images on server startup (#3064)
- Implemented the Lapine Upgrade user interface. (#3068)
- Exposed the former `rodex_sendmail_sub()` function as part of the script interface, as `script->buildin_rodex_sendmail_sub()`. (part of #3071)
- Implemented a `checkhiding()` script command, returning true if a character is hidden (Hiding, Cloaking or Chase Walking but not GM Perfect Hide). See [doc/script_commands.txt](doc/script_commands.txt) for details. (part of #3081)

### Changed

- Reworked the drop rate calculation and the way drop rate bonuses stack, to better accommodate for the new `bDropAddRace` bonus. (part of #2970)
- Changed various card slot processing functions to check all of them even if an item has a limited amount of card slots, since they could contain other (non-card) enchantment items. (#3066)
- Converted the elemental damage table to libconfig. See `(pre-)-re/attr_fix.conf`. A converter script `tools/attr_fix_converter.php` has been provided in order to help converting any customized tables. (#3070)
- Added the inventory index for each item in the `@itemlist` command (part of #3071)
- Changed the ambiguous return value of `getpetinfo(PETINFO_NAME)` when no pet is found. The empty string `""` is now returned instead of `"null"`, which could ambiguously be considered a valid pet name. (part of #3079)
- Changed the WARPNPC scripted warps to behave in a consistent way to real non-scripted warps. (#3081)
  - The use of `OnTouch_` has been replaced with `OnTouch` to prevent players from holding an NPC dialogue open to abuse the serialization mechanism of the former event and block the script from triggering for other players.
  - A check for the hidden/cloaked status has been added, to match the behavior of non-scripted warps.
- Applied the above `OnTouch_` to `OnTouch` conversion to the NPCs from the Cursed Spirit quest in order to prevent the same serialization abuse and the glitches that derive from it. (part of #3081)

### Fixed

- Fixed (implemented) lazy evaluation of the ternary conditional operator in the scripting language. Only the expected branch is now executed, as opposed to both branches. (#3074)
- Fixed the behavior of the Splash Kunai (`KO_HAPPOKUNAI`) skill: (#3053, issue #1597)
  - Updated damage formula to `3 * (Kunai Atk+ Weapon Atk + Base Atk)) * (Skill Level + 5) / 5`.
  - Pierce attack modifier no longer applies to it.
  - Element comes from the kunai rather than from the weapon.
  - SP Cost gets increased and Hit count should be 1.
- Fixed the behavior of the Dragon Breath (`RK_DRAGONBREATH`) skill: (part of #3053, issue #1597)
  - It now applies the elemental modifier and ignores the target's flee.
- Fixed the behavior of the Intense Telekinesis (`WL_TELEKINESIS_INTENSE`) skill: (part of #3053, issue #1597)
  - Damage is now tripled when the skill element is Ghost.
- Fixed several warnings reported by the Visual Studio compiler (#3058)
- Fixed an incorrect condition in the WoE mob status calculation. Instead of relying on castle IDs it now correctly detects the type of WoE castle (FE or TE) and applies the appropriate status modifiers. (#3062)
- Fixed the inconsistent behavior of `getcalendartime()` when supplied with the current hour and minute. (#3072)
  - The command will now always return the next occurrence of the given time (as specified by the day of month or day of week parameter) instead of inconsistently returning today's timestamp in some cases.
- Fixed the Lord Of Death spawning script never using one of the spawn locations. (#3075)
- Fixed visual glitches in RoDEX when the first item of a character's inventory (having index 0) is added to an attachment slot. (#3071)
- Fixed visual glitches when removing parts of an item stack from an attachment slot. (part of #3071)
- Fixed some processing errors in RoDEX with newer clients, after the "bulk actions" update, that keep the rows from deleted messages on screen until refreshing and send bogus data to the server. (part of #3071)
- Fixed the message body length check in the `rodex_sendmail()` script command, now allowing for the full message length of the RoDEX system as opposed to the shorter length from the earlier Mail system. (part of #3071)
- Fixed the `map->foreachinpath()` path calculation having gaps or too narrow paths, affecting skills such as Sharpshooting. (#3076)
- Fixed the behavior of the Acid Demonstration (`CR_ACIDDEMONSTRATION`) skill: (#3077)
  - The strip effect from rogues was incorrectly applied when the Armor & Weapon Break triggers for non-player characters. Now nothing is applied instead, matching the official behavior.
- Fixed the behavior of the Mental Charge (`HLIF_CHANGE`) skill: (#3078)
  - In pre-renewal the skill now makes the caster always use the raw max MATK as base damage, as in official servers.

### Removed

- Removed the `set_sc_with_vfx()` macro, superseded by the `HasVisualEffect` SC config flag. (part of #3061)
- Removed the `getguildname()` script command, deprecated since v2019.11.17 and superseded by `getguildinfo()` - see PR page for replacements if you were still relying on the deprecated command. (#3079)
- Removed the `getguildmaster()` script command, deprecated since v2019.11.17 and superseded by `getguildinfo()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `getguildmasterid()` script command, deprecated since v2019.11.17 and superseded by `getguildinfo()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `petstat()` script command, deprecated since v2019.04.07 and superseded by `getpetinfo()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `PET_*` constants related to the `petstat()` command. (part of #3079)
- Removed the `specialeffect2()` script command, deprecated since 2017 and superseded by `specialeffect()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `pcblockmove()` script command, deprecated since v2018.06.03 and superseded by `setpcblock()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `kickwaitingroomall()` script command, deprecated since v2020.11.16 and superseded by `waitingroomkick()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `debugmes()` script command, deprecated since v2019.05.05 and superseded by `consolemes()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `misceffect()` script command, deprecated since 2017 and superseded by `specialeffect()` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)
- Removed the `pow()` script command, deprecated since 2017 and superseded by the exponentiation oeprator `**` - see PR page for replacements if you were still relying on the deprecated command. (part of #3079)

## [v2021.10.06+1] `October 06 2021`  `PATCH 1`

### Fixed

- Fixed a critical guild storage saving issue causing item duplication. (#3059)
- Fixed the return code of `chr->memitemdata_to_sql()` to behave as documented. (part of #3059)
- Fixed a possible out of bound read from a buffer in `clif_guild_basicinfo()`. (part of #3059)

## [v2021.10.06] `October 06 2021`

### Added

- Implemented the official Macro Detection/Captcha system. Note: a client patch may be necessary, in order to correct an inconsistency between the BMP formats accepted by the Register functions and the Detector/Preview UI. (#3051)
  - Includes:
    - The Macro Register UI, available through the `/macro_register` command.
    - The Macro Detector UI, triggered by the server to send captcha challenges to players.
    - The Macro Reporter UI, available through the `/macro_detector` command.
    - The Captcha Preview UI, available through the `/macro_preview <captcha_id>` command.
  - See the Pull Request #3051 description and http://nemo.herc.ws/patches/ChangeCaptchaImageDecompressionSize/ for screenshots and more details.
- Added a new SC flag `NoMagicBlocked`, to block a status change while under the no magic state. (#3050)
- Added a startup check to ensure the best/fastest available clock source is used on Linux. (#3046)
  - Additional related resources:
    - https://www.kernel.org/doc/Documentation/timers/timekeeping.txt
    - https://www.kernel.org/doc/Documentation/timers/
    - https://access.redhat.com/solutions/18627
- Added the skill flags `RangeModByVulture`, `RangeModBySnakeEye`, `RangeModByShadowJump`, `RangeModByRadius`, `RangeModByResearchTrap`, replacing hardcoded skill range modifiers. (#3043)

### Changed

- Removed redundant `sd->hd` NULL checks before calls to `homun_alive()`. (#3056)
- Regenerated the `configure` script with Autoconf 2.71. (part of #3046)
- Updated some party-related packets (`PACKET_ZC_ACK_MAKE_GROUP`, `PACKET_ZC_PARTY_JOIN_REQ`, `PACKET_ZC_PARTY_JOIN_REQ_ACK`, `PACKET_ZC_NOTIFY_CHAT_PARTY`, `PACKET_ZC_NOTIFY_POSITION_TO_GROUPM`, `PACKET_ZC_NOTIFY_HP_TO_GROUPM`, `PACKET_ZC_PARTY_MEMBER_JOB_LEVEL`, `PACKET_ZC_DELETE_MEMBER_FROM_GROUP`  to use the struct format. (#3049)
- Updated `.mailmap`. (#3010)

### Fixed

- Fixed Kaite in Renewal to increase melee damage to 400% as in official servers. (#3054)
- Added a missing `equipFlag` to the `ZC_ENCHANT_EQUIPMENT` packet. (#3052)
- Fixed `SC_GENTLETOUCH_CHANGE` not applying the WATK bonus. (#3048, issue #1629)
- Fixed the `Daehyon_Card` script effect to only work on One or Two Handed Sword. (#3047, issue #2996)
- Fixed `SC_HOWLING_MINE` to use `status->isdead()` through the HPM interface instead of directly. (#3044)
- Fixed the weapon type requirement of `KO_JYUMONJIKIRI` to require that left and right hand aren't bare fists (but the right hand can be a shield). (#3041)
- Fixed the `Womens_Bundle` item script and the `npc_live_dialogues.txt` documentation still referencing the `F_RandMes()` function instead of `F_Rand()`. (#3040, issue #3039)
- Fixed a redundant `MAPID_BABY_TAEKWON` in the `pc_jobchange()` fame list check. (#3057)

### Others

- Note: Even if we release at the beginning of the month, Hacktoberfest is still in progress! We'll be granting the `hacktoberfest-accepted` label to any valid PRs opened before October 31st, even if we'll include them in the November release. Make sure to sign up on https://hacktoberfest.digitalocean.com/ and open your PRs before the deadline if you wish to participate. Happy Hacktoberfest!

## [v2021.09.01] `September 01 2021`

### Added

- Added a sanity check of skill IDs against `MAX_SKILL_ID` when loading the skill database. (part of #3033)
- Added Rebellion skills, items and SCs to the Pre-Renewal database. (#3031)
- Added the `NoBBReset` flag for SC types that shouldn't be reset by the Rebellion skill Banishing Buster. (#3032)

### Changed

- Increased `MAX_SKILL_ID` to 10020 to fit all the currently existing skills. (#3033)
- Updated the list of job IDs displayed by `@jobchange`. (#3029)

### Fixed

- Fixed the mob groups reading the rate from the wrong object, resulting in the fallback value `MOBID_PORING` being returned in many cases. (#3037, issue #3036)
- Fixed typos in various documentation comments. (#3035)
- Fixed the Extreme Vacuum skill causing a permanent `SC_VACUUM_EXTREME` status when it hits several targets at the same time. (#3025, related to #2995)
- Fixed the damage of piercing critical attacks with Thanatos Card in Renewal. (#3023, issue #3022)
- Fixed the Ignition Break animation in recent (2018 and newer) clients. (#3034, issue #2511)
- Fixed the Blast Mine, Claymore Trap and Land Mine damage to ignore card damage reductions. (#3024, formerly #1149)

## [v2021.08.04] `August 04 2021`

### Added

- Added support for the official Guild Storage system, supported starting with PACKETVER 20131223. Older PACKETVERs aren't affected by this change. (#1092)
  - When the official system is enabled, a guild will require the `GD_GUILD_STORAGE` skill in order to obtain access to Guild Storage.
  - Starting with PACKETVER 20140205 it's possible to control access to the Guild Storage through permissions defined in the Guild window.
  - Since this change can lock existing guilds out of their storage until and if they invest skill points in `GD_GUILD_STORAGE`, it's possible to opt out and keep using the custom system (fixed size, no skills required) by defining the `DISABLE_OFFICIAL_GUILD_STORAGE` preprocessor macro.
  - When the official guild storage is enabled, `MAX_GUILD_STORAGE` can't/shouldn't be redefined. The `GUILD_STORAGE_EXPANSION_STEP` macro is instead provided, defining the amount of storage slots that each level of the `GD_GUILD_STORAGE` skill will provide.
  - Increasing the maximum level of the `GD_GUILD_STORAGE` skill may lead to unexpected behaviors. If you must, you'll at least need to edit the `MAX_GUILD_STORAGE` macro definition to increase the maximum skill level.
  - When this is enabled, the `MAX_GUILD_STORAGE` script constant will refer to the maximum possible guild storage, rather than the current size of a specific guild's storage.
  - This requires a database migration.

### Changed

- Moved the `map->freeblock_unlock()` call from `skill_castend_nodamage_id_unknown()` to its caller. (#3019)
- Converted the random monster databases to libconfig. See `db/*/mob_group.conf` and `db/mob_group2.conf`. A converter (`tools/mobgroupconverter.py`) is provided, in order to convert custom databases. (#3013)
- Major refactoring of the Guild Storage related code and documentation. The Guild Storage items are now held in a dynamically sized array. (part of #1092)

### Fixed

- Fixed a crash when a bl is deleted twice. `map->freeblock()` will now detect it and prevent the double deletion. (#3021)
- Fixed a damage overflow in `GN_CART_TORNADO` when a character's base strength is very high. The base str value is now capped to 130 for the skill formula's purposes. (#2927, issue #659)
- Fixed the behavior of `SC_POWER_OF_GAIA` to increase the maximum HP in percentage rather than by a fixed amount. (#2918)

### Removed

- The txt version of the random monster databases (`mob_classchange`, `mob_pouch`, `mob_boss`, `mob_branch`, `mob_poring`) is no longer supported. Custom databases need to be converted to libconfig with the provided tool. (part of #3013)

## [v2021.07.07] `July 07 2021`

### Changed

- Updated some guild-related packets to use the struct format. (#3016)

### Fixed

- Fixed off-hand damage bypassing any card reductions on the target. (#3014, issue #3011)
- Fixed indentation and extra blank lines in the renewal skill db file. (#3012)
- Fixed the use of `setunitdata()` on a mob to change that specific unit's view data instead of overwriting it globally. Any such changes will now persist in case of the mob database is reloaded. (#3006)

## [v2021.06.02] `June 02 2021`

### Added

- Added diagnostic checks around map free blocks when asan is on, to track bl double free issues. (#3005)
- Added support for checking the clients' supported features through client flags (requires a client patched with the [SendClientFlags](http://nemo.herc.ws/patches/SendClientFlags/) patch - currently supports `ENABLE_CASHSHOP_PREVIEW_PATCH` only, more to come later). See the `login_configuration/permission/check_client_flags` and `login_configuration/permission/report_client_flags_error` settings in `login-server.conf`. (#3001)
- Added support for the Rebellion skills. (#2997)

### Changed

- Updated the cooldown of Neutral Barrier (`NC_NEUTRALBARRIER`) to depend on the skill level. (#2934)
- Changed `successremovecards()` to automatically re-equip the item, for consistency with `failedremovecards()`. (part of #3004)

### Fixed

- Fixed an issue that prevented dual monster races from completing. (#2990, issue #2989)
- Fixed a crash with evolved homunculi. (#3008)
- Fixed mapflags in instanced maps not getting reloaded correctly after scripts are reloaded. (#3003, issue #3002)
- Fixed the visual effect of Killing Cloud (`SO_CLOUD_KILL`). (#2980, issue #2978)
- Fixed a regression in Ankle Snare (`HT_ANKLESNARE`) caused by a recent Manhole update. (#2965, issue #2964)
- Fixed an issue that prevented a character from equipping items after attempting to use the Refine skill with no refinable items in inventory. (#3007)
- Fixed an issue that prevented the automatic re-equipping of items by `failedremovecards()` `setequipoption()`. (#3004)

## [v2021.05.05] `May 05 2021`

### Added

- Added settings to modify the chain item drop rates. See `item_rate_add_chain`, `item_drop_add_chain_min` and `item_drop_add_chain_max` in drops.conf for details. (#2983, issue #2982)
- Added a check to ensure that the `map->freeblock_lock()` and `map->freeblock_unlock()` calls are balanced (GCC only). (#2992)

### Changed

- Documented that `struct script_state::rid` can contain the GID of a mob when called through `OnTouchNPC`. (part of #3000)
- Merged the homunculus exp tables into `exp_group_db` (#2998)

### Fixed

- Fixed a crash in the `WL_WHITEIMPRISON` skill as well as possible crashes in the `ST_SWORDREJECT` and `ASC_BREAKER` skills. (#2991)
- Fixed the adoption request entry in the character context menu. (#2993)
- Fixed the Vacuum Extreme status becoming permanent until logout or death. (#2995, issue #2919)
- Fixed Free Cast ignoring other speed modifiers (bypassing speed debuffs such as Curse). (#2987, issue #2976)
- Fixed the trade restrictions for the Monster Ticket item, which should disallow dropping, trading, etc. (#2986, issue #2985)
- Fixed an issue in the custom warper NPC that caused characters to get stuck when selecting the last warp option when it wasn't set yet. (#2984)
- Fixed an error when `getarraysize()`, `soundeffectall()`, `atcommand()` or `useatcmd()` are called from an `OnTouchNPC` script. (#3000, related to issue #2989)
- Fixed `montransform()`, `clan_join()`, `clan_leave()` and `clan_master()` not reporting an error when called without RID attached. (part of #3000)
- Fixed the Water Screen skill, now deflecting the damage to the Aqua elemental spirit and healing the master by 1000 HP every 10 seconds. (#2981)
- Fixed the Guardians in WoE:SE spawning in random locations instead of their designated ones. (#2999)

### Removed

- Removed the `homunculus_max_level` and `homunculus_S_max_level` battle configuration flags, now replaced by the `exp_group_db` configuration. (part of #2998 and 32fea2586d)

## [v2021.04.05+1] `April 05 2021` `PATCH 1`

### Fixed

- Fixed a regression that caused the buffs from various skills not to get applied. (#2979, issue #2977)

## [v2021.04.05] `April 05 2021`

### Added

- Added new `SP_*` constants in preparation for adding 4th jobs and reformatted the `status_point_types` enum to have one entry per line, with their respective values. (part of #2968)
- Added support for the Baby Summoner job class. (part of #2968)
- Added support for the Baby Ninja job class. (part of #2968)
- Added support for the Baby Kagerou and Baby Oboro job classes. (part of #2968)
- Added support for the Baby Taekwon job class. (part of #2968)
- Added support for the Baby Star Gladiator job class. (part of #2968)
- Added support for the Baby Soul Linker job class. (part of #2968)
- Added support for the Baby Gunslinger job class. (part of #2968)
- Added support for the Baby Rebellion job class. (part of #2968)
- Added support for the Star Emperor job class and related skill ID constants and skill database entries. Skill ID conflicts between Star Emperor and Rebellion were solved in favor of the former for renewal and the latter for pre-renewal for the time being. (part of #2968)
- Added support for the Baby Star Emperor job class. (part of #2968)
- Added support for the Soul Reaper job class and related skill ID constants and skill database entries. (part of #2968)
- Added support for the Baby Soul Reaper job class. (part of #2968)

### Changed

- Moved the mappings between skills and status changes (`Skill2SC` table) into the `StatusChange` field of the skill database. The `Skills` field of the `sc_config` is renamed to `Skill` and limited to one associated skill per SC. (#2971)
- Added the corresponding numeric value next to each entry in the `e_class` enum, to prevent accidental renumbering and to make lookup easier. (part of #2968)
- Added some missing constants for job IDs or separators in the `e_class` enum. (part of #2968)
- Improved validation of the `class_exp_table` of the `job_db` with additional sanity checks. (part of #2968)
- Moved the `EAJ_*` constants from `constants.conf` to the source and added the ones that were missing (`EAJ_WEDDING`, `EAJ_XMAS`, `EAJ_SUMMER`, `EAJ_BABY_SUMMONER`). (part of #2968)
- Changed the warning message displayed when a constant is redefined with the same value as previously defined to mention that it has the same value. (part of #2968)
- Renamed the `job_name()` function to `pc_job_name()`. The public interface name is still `pc->job_name()`. (part of #2968)
- Moved the job enum values into separate files (`common/class.h`, `common/class_special.h` and `common/class_hidden.h`), to be accessed through the `ENUM_VALUE()` X-macro and reduce repetition. (part of #2968)
- Added the `-Wswitch-enum` warning to the default compiler settings (with an exception for libbacktrace). (part of #2968)
- Improved validation of `job_db2`, now detecting missing jobs. (part of #2968)
- Changed some function parameters from integers to the appropriate enums. (part of #2968)
- Split the status change config into renewal and pre-renewal. (part of #2963)
- De-hardcoded the status change calculation flags, moving them from the source to the `CalcFlags` field of the `sc_config`. (#2963)

### Fixed

- Fixed a regression in the association between skills and status changes. (part of #2971, issue #2969)
- Added support for the Summoner job to the `db2sql` plugin. (part of #2968)
- Fixed validation of the skills cast through Abracadabra (Hocus Pocus). (#2972, related to #2859, issue #2824)
- Fixed validation of the skills cast through Improvised Song. (#2972, related to #2859, issue #2823)
- Worked around a client issue (packet containing garbage) that prevented proper validation of the Warp Portal skill use request when cast through Abracadabra, causing the caster to get stuck and unable to cast any other skills until relogging or teleporting. (#2972)

### Removed

- Removed the unused `FixedCastTime` field from the pre-renewal skill DB. (part of #2968)
- Removed the `status->set_sc()` function, no longer needed. (part of #2963)

## [v2021.03.08] `March 08 2021`

### Added

- Added support for preview in the cash shop. This is disabled by default and can be enabled by defining `ENABLE_CASHSHOP_PREVIEW_PATCH` or through the configure flag `--enable-cashshop-preview-patch`. A client patch is necessary, available at http://nemo.herc.ws/patches/ExtendCashShopPreview (#2944)
- Added a console warning if a message that is not present in `messages.conf` is requested. (#2958)
- Added the missing icons for `SC_DEFSET` and `SC_MDEFSET`. (#2953)
- Added the `SC_NO_RECOVER_STATE` status preventing HP/SP recovery and the related item bonus `bStateNoRecoverRace`. (#2956)

### Changed

- De-hardcoded the association between status changes and skills from the source code. A new field `Skills` is added to the `sc_config`, allowing to specify a list of skills for each status change entry. The macro `add_sc` has been removed from `status.c`, use `status->set_sc()` instead. (#2954)
- Converted packets `ZC_NOTIFY_SKILL`, `ZC_USE_SKILL`, `ZC_NOTIFY_GROUNDSKILL`, `ZC_SKILL_POSTDELAY` and `ZC_NOTIFY_SKILL_POSITION` to the structure format. (#2951)
- Converted the Homunculus database to libconfig. A tool to help converting custom databases has been provided in `tools/homundbconverter.py`. (#2941)
- De-hardcoded the list of skills that are blocked under `SC_STASIS` and `SC_KG_KAGEHUMI`. A new pair of `SkillInfo` flags `BlockedByStasis` and `BlockedByKagehumi` has been added to the skill database. (#2959)
- Updated the item script of `Velum_Flail` to its official effects. (part of #2956)

### Fixed

- Fixed compilation with mingw. (#2945)
- Fixed the CodeQL analysis builds in the CI. (#2946)
- Fixed a possible use after free in `unit_skilluse_id2()`. (#2947)
- Fixed the save point message of the Kafra in `alb2trea`. (#2950)
- Fixed some issues/regressions in the regeneration code: (#2952)
  - Fixed an issue that caused the SP regeneration rate bonus to be applied to the HP regeneration.
  - Fixed the HP/SP regeneration always capping to a minimum of 1, causing unintended behavior. (issue #2910)
  - Fixed a issue that caused the homunculus regeneration configuration to apply to elementals instead.
  - Fixed the Happy Break bonus not triggering.
  - Fixed the doridori doubled SP regeneration applying to jobs other than Super Novice.
- Fixed Emergency Call ignoring `unit_skilluse_id2()` in Renewal. (#2949)
- Fixed Manhole working on Guardians/Emperium while it shouldn't. (#2942)
- Fixed `successremovecard()` not running the cards' unequip scripts. (#2933, issue #2922)

## [v2021.02.08] `February 08 2021`

### Added

- Extended the quest database with new options. (#2874)
  - Mob ID can be set to 0 to allow any monster ID.
  - A monster level range can now be specified.
  - A target monster's map can now be specified.
  - A target monster's type (size, race and/or element) can now be specified.
- Added new quest database entries using the new options. (part of #2874)
- Added a failed assertion backtrace report in the removing player error in `unit->remove_map()`. (part of #2938)
- Added support for constants and improved error messages in the quest DB. This affects the `Mob_ID`, `Drops/ItemId` and `Drops/MobId` fields. (#2886)
- Added inheritance mechanism for the pet DB. Inheritance works in the same way as the mob and item databases, allowing to specify the `Inherit: true` flag in order to inherit (rather than overriding) an existing entry with the same Id. (#2206, issue #2181)
- Updated the map database, NPC and Hateffect constants with new data. (#2936)

### Changed

- Changed the free cell search (as used by random mob spawns or teleport) to ignore the map margins, as in official servers. The margin size defaults to the official value of 15 and can be changed by editing the `search_freecell_map_margin` setting in `misc.conf`. (#2911)
- Refactored and sanitized `map->search_freecell()`. The function has been renamed to `map->search_free_cell()` since the meaning of its return values has changed. (part of #2911)
- Refactored and documented some pet database functions and added validation of the pet DB entries before they're inserted into the database. The new constant `ITEID_PET_FOOD` has been added. (part of #2206)

### Fixed

- Fixed a signed left shift overflow in socket.c. (part of #2938)
- Fixed failing github workflows builds, switching from clang-10 to clang-11 since the former is no longer available in the Debian repositories. (part of #2938)
- Forcefully disabled the compiler flag `-fcf-protection` to avoid issues in the `setjmp()` calls. (#2938)
- Fixed some missing item IDs referenced by the quest DB in pre-re mode. (part of #2886)
- Fixed grfio issues with large grf files. (#2937)

## [v2021.01.11] `January 11 2021`

### Added

- Integrated the Renewal mob database with the correct `DamageTakenRate` value for MVPs that require it. Those MVPs have a green aura and only receive 10% of the damage dealt to them. (#2875)
- Added an enum for client action types. See `enum action_type`. (#2930)
- Added skill prerequisite checks before leveling up homunculus skills, allowing the definition of prerequisites for non-evolved or non-loyal homunculi, as it was previously limited to those. The check is disabled when the `player_skillfree` setting is enabled in the battle config. (#2807)
- Added constants for the `mercenary_delete()` script command as well as the `mercenary->delete()` function and documentation for the formerly undocumented values. See `enum merc_delete_type` and the script constants `MERC_DELETE_*`. (part of #2858, issue #2843)

### Changed

- Cleaned up mob database from redundant `MVPExp: 0` fields. (part of #2875)
- Updated packet `CZ_REQUEST_ACTNPC` to use a struct. (part of #2930)
- Changed the default mercenary delete type of the `mercenary_delete()` script command to be fired by the user (not updating loyalty). (#2843)

### Fixed

- Fixed an issue that caused the Sign quest to lock up and become unfinishable for everyone when a player times out or logs out under certain conditions. (#2921)
- Fixed an exploit that allowed multiple people into the solo room of the Sign quest. (part of #2921)
- Fixed a failed assertion when using the `MH_SUMMON_LEGION` skill. (#2929)

### Removed

- Removed the undocumented and meaningless return value of `mercenary->delete()`, now returning void. It was previously relying on the return value of two other functions, and ultimately always returning zero. (part of #2843)

## [v2020.12.14+1] `December 14 2020` `PATCH 1`

### Fixed

- Fixed a crash in `unit->run_hit()` caused by a regression in the last update. (#2924)

## [v2020.12.14] `December 14 2020`

### Added

- Added a warning when `setnpcdisplay()` or `setunitdata()` is called on a floating NPC. (#2907)
- Added support for RSW formats up to 2.5 for reading map water level. (#2916)
- Added a `status->check_skilluse_mapzone()` function, simplifying `status->check_skilluse()` and adding a useful plugin hooking point. (#2893)

### Changed

- Second part of the refactoring of the functions in `unit.c`, adding code documentation and following the code style guidelines. Functions have been renamed when backward compatible changes to the arguments or return values were made. (#2783)
  - Added proper documentation in doxygen-format.
  - Moved variables declaration closer to their first use
  - Corrected mistreatment on checks of non-boolean variables
  - Renamed some variables to clarify their use
  - Saved re-used calculations in variables or create local macros for them
  - Simplified logical checks / conditions when possible
  - Changed returning error-code in functions to obey code-style guidelines (Functions that are affected by this are renamed so that custom code fails to compile as to point at that change of behavior.)
  - Split too long lines according to code-style guidelines
  - Made functions use enums for directions (`enum unit_dir`), when dealing with a direction context
  - Reduced code-repetition by separating code-chunks into new functions
  - Fixed remaining code-style after applying all these changes if necessary
  - The following functions have been refactored:
    - `unit->walktobl()` (renamed to `unit->walk_tobl()`)
    - `unit->run_hit()`
    - `unit->run()`
    - `unit->escape()` (renamed to `unit->attempt_escape()`)
    - `unit->movepos()`
    - `unit->walk_toxy_timer()` (return value fix)
    - `unit->blown()` (renamed to `unit->push()`)
    - `path->blownpos()` (related to the `unit->blown()` change)
    - added `npc->handle_touch_events()` function
    - the `is_boss()` macro now returns a boolean
- Added static assertion checks to prevent `MAX_STORAGE` and `MAX_GUILD_STORAGE` from causing oversized inter-server packets (#2904)
- Disabled the HP bar on Emperium and MVP monsters by default. The configuration flag `show_monster_hp_bar` has been extended to a bitmask, to allow specifying different setting for normal monsters, Emperium and MVPs. The new default value is 1 (normal monsters only), while the value corresponding to the previous behavior is 7 (`4|2|1`). (#2821)

### Fixed

- Fixed a walk delay error in `unit_stop_walking()`. (part of #2783)
- Fixed homunculi and mercenaries not warping back to their master in time. (part of #2783)
- Reverted an unintended logical change in `unit->walk_toxy_timer()` done during the first part of the `unit.c` refactoring. (#2783)
- Fixed a warning (`Warning: #1681 Integer display width is deprecated and will be removed in a future release.`) when importing the database schema in recent versions of MySQL. (#2903)
- Fixed compilation with recent versions of the MySQL/MariaDB client libraries. (#2917)
- Fixed a farming exploit at the Cursed Spirit NPC. (#2883)
- Fixed the configuration flag `monster_loot_type` not working as intended. (#2855, issue #2834)

### Removed

- Removed the unused function `skill->get_linked_song_dance_id()`. (#2906)

## [v2020.11.16] `November 16 2020`

### Added

- Added a new script command `waitingroomkick()` offering better control than `kickwaitingroomall()`. (#2048)
- Added a new function `map->get_random_cell_in_range()` to get a random cell in a square around a center cell. (part of #2882)
- Added a new function `map->get_random_cell()` imitating an official cell randomization behavior, returning a cell between a minimum and a maximum distance away from the center, in a square area. (part of #2882)
- Added `pc->calc_pvprank_sub()` to the `pc` interface to allow plugins to hook into it. (#2894)

### Changed

- Updated the list of Hat Effect ID constants with new values. (#2878)
- Updated the list of NPC Sprite ID constants with new values. (#2879)
- Renamed the `PARTY_BOOKING_JOBS` and `PARTY_BOOKING_RESULTS` macros to `MAX_PARTY_BOOKING_JOBS` and `MAX_PARTY_BOOKING_RESULTS` respectively to better suit their purpose, and refactored some related code. The macros can now also be redefined externally. (#2231)
- Extended the `warpwaitingpc()` and `waitingroom()` script commands with an argument to specify which NPC to execute the commands on, for consistency with other waitingroom commands. (part of #2048)
- Refactored `map->random_dir()`, fixed a possible runtime error and added/clarified the function documentation. (#2882)
- Changed the libconfig directive `@include "FILENAME"` directive to search inside `conf/import/include/{SERVERNAME}/{FILEPATH}` before `{FILEPATH}` allowing for example to easily override `sql_connection.conf` on a server by server basis without editing other files. (#2881)
- Improved the error messages in the mob skill DB parser to include the monster ID constants instead of just the numeric IDs. (#2884)
- Corrected the return values in the null pointer checks of `mob->skill_use()` and renamed it to `mob->use_skill()` due to the changed API. (part of #2887)
- Corrected the return values in the null pointer checks of `mob->skill_event()` and renamed it to `mob->use_skill_event()` due to the changed API. (part of #2887)
- Removed an unnecessary call to `unit->set_dir()` when the direction doesn't change in the busy `unit->attack_timer_sub()`, preventing a needless `clif->changed_dir()` broadcast. (#2891)
- Added data validation to the `rodex_sendmail*()` commands to ensure that the item amount is valid. (#2901, issue #2897)
- Added data validation to the `rodex_sendmail_acc*()` commands to ensure that the receiver ID is in a valid range. (#2901, issue #2898)

### Fixed

- Added checks to the waitingroom script commands to ensure that their related waiting room and NPC exist. (part of #2048)
- Fixed the random cell selection of Confusion and Chaos according to their official behavior (random cell in a square area). (part of #2882)
- Fixed the random cell selection of `WE_CALLPARTNER`, `WE_CALLPARENT`, `WE_CALLBABY`, `AM_RESURRECTION` according to their official behavior (random cell in a quare area with minimum and maximum distance). (part of #2882)
- Fixed the damage buff effect of Watery Evasion when using Freezing Spear. (#2873)
- Fixed a missing scoreboard UI for battleground type 2. (#2849, issue #2848)
- Fixed a null pointer error in the search store function when trying to search with an empty list or with an empty card list. (#2885)
- Fixed the handling of the return value of `mob->skill_use()` and `mob->ai_sub_hard()`. (#2887)
- Fixed summoned monsters not following their master if it's a `BL_PC`. (#2888, issue #2808)
- Fixed the Impositio Manus behavior to always overwrite itself regardless of level. (#2890, issue #695)
- Fixed a possible crash when changing the display class of a floating NPC, caused by missing data validation. (#2900, issue #2899)
- Fixed the name of the `Fruit Pom Spider Card` item. (#2902, issue #2896)
- Fixed the `KO_GENWAKU` skill effect, swapping the position of the caster and the target. (#2831)

### Deprecated

- Deprecated the `HAT_DIGITAL_SPACE` constant in favor of `HAT_EF_DIGITAL_SPACE`. (part of #2878)
- Deprecated the `kickwaitingroomall()` script command in favor of `waitingroomkick()`. (part of #2048)

## [v2020.10.19] `October 19 2020`

### Added

- Added a `HERCULES_VERSION` constant with the identifier of the current Hercules release, exposed to source and script engine. (#2868)
- Added a CI script to run a `CodeQL` analysis. (#2861)

### Changed

- Removed `SC_FRIGG_SONG` from the Group A Song Skills list, since it is no longer part of it. (#2864)
- Improved, clarified and corrected the documentation comments of the `client.conf` configuration file. (#2870)
- Moved some messages to `messages.conf`. (#2866)
- Updated the `F_InsertComma()` function to work with numbers that are too large to fit in a numeric variable (such as numbers, larger than a 32 bit signed integer, returned by SQL queries). (#2860)
- Extended `getcharid()` to optionally accept a character ID as an alternative to the character name. (#2876)

### Fixed

- Fixed a failed assertion in the char server when trying to save a plagiarized skill. (#2877)
- Fixed the `KO_ZENKAI` AoE, to only trigger one of its status effects per tick. (#2863)
- Removed duplicated code from the mapflag parser function. (#2857)
- Fixed incorrect job class checks in several scripts. This fixes the special discount for assassins in the Morocc pub as well as a number of class-specific flavor text that wasn't displayed in various other scripts. (#2856)
- Fixed a wrong variable name in the `getcartinventorylist()` documentation. (#2850, part of issue #2843)
- Fixed the effect of Convex Mirror, now properly showing the position of the boss monsters on the map, if any are present. (#2862)
- Fixed the Dancer Soul Link not granting the associated Bard skills. (#2852, issue #2815)

## [v2020.09.20] `September 20 2020`

### Added

- Added a configure option `--with-maxconn=VALUE` to change the maximum number of allowed concurrent connections. (#2837)
- Added a new script command `mercenary_delete()`, to remove the mercenary from a character. (#2818)
- Added the `MDAMAGE_SIZE_SMALL_TARGET`, `MDAMAGE_SIZE_MIDIUM_TARGET`, `MDAMAGE_SIZE_LARGE_TARGET` item options to the db. (#2816)
- Added a configuration flag `features/show_attendance_window` to control whether the attendance window should pop up on login when there are unclaimed rewards. (part of #2812, issue #2101)

### Changed

- Increased the maximum number of concurrent connections to be 3072 by default when epoll is enabled. (part of #2837)
- Converted the mapcache documentation to the Markdown format and updated to reflect the way the mapcache currently works and is generated. (#2274, issue #2060)
- Improved, clarified and corrected the documentation comments of the configuration files. (#2827)
- Changed the attendance system from character bound to account bound. This includes an irreversible database migration, a backup is strongly advised. (#2812, issue #2704)
- Refactored and improved the natural HP/SP regeneration code. (#2594, cc7e1ecf0a, #2841)
  - Removed several unused variables from `struct regen_data`.
  - Renamed the members of `struct regen_data` to be more clear.
  - Changed the HP/SP heal frequency rate modifiers from a base of 1 to a base of 100 to reduce precision loss due to truncation.
  - Fixed the natural healing bonus of castle owners, to be correctly applied and removed when a castle changes ownership.
  - Extended the range of the variables in the regen data structures to int to reduce the possibility of overflows and underflows.
  - Split the `status_calc_regen` and `status_calc_regen_rate` functions into specialized functions for each affected bl type.
  - Limited various regeneration related status effects to the bl types that can be affected by them.
  - Fixed various regeneration related bonuses that were affecting the regeneration rate (time) instead of the regeneration power (amount healed).
  - Fixed the way different regeneration bonuses are stacked, to match the official behavior.
  - Added support for different and configurable regeneration rates for different bl types. This can be configured through the `elem_natural_heal_hp`, `elem_natural_heal_sp`, `hom_natural_heal_hp`, `hom_natural_heal_sp`, `merc_natural_heal_hp`, `merc_natural_heal_sp` configuration flags.
  - Fixed the `HLIF_BRAIN` and `HAMI_SKIN` regeneration bonuses to affect the regeneration rates instead of the regeneration powers.
  - Added a configurable cap to the regeneration rate. This can be configured through the `elem_natural_heal_cap`, `hom_natural_heal_cap`, `merc_natural_heal_cap`, `natural_heal_cap` configuration flags.
  - Fixed the behavior or Tension Relax when overweight, to just allow regeneration instead of increasing the regeneration rate and removed its effect on the SP regeneration.
  - Fixed the Magnificat effect in pre-renewal to only affect SP instead of both HP and SP. It was originally affecting both officially, but it was removed very early (Comodo update).
  - Made the regeneration data get recalculated on status changes that set the `SCB_REGEN` flag and added it to the 50% and 90% overweight SCs.

### Fixed

- Fixed GitLab and GitHub CI builds broken due to upstream package changes. (#2838)
- Fixed the `generate_translations` plugin on windows, not generating the output directories correctly. (#2836)
- Fixed the MDEF and DEF reduction of Odin's Power to depend on the skill level. (#2833)
- Fixed some skills (such as `MO_EXTREMITYFIST` `TK_JUMPKICK`, `SR_DRAGONCOMBO`, `SR_GATEOFHELL`) not sending the correct target type to the client when used as part of a combo. (#2829)
- Fixed typos in the documentation comments of several db files. (#2828)
- Removed duplicate lines in `cash_hair.txt` and `clif.c`. (#2840)
- Fixed an issue that prevented the "night mode" effect to be displayed. (#2839)
- Fixed a dangling pointer causing memory corruption when using `@unloadnpc` or any other way to unload NPCs. (#2835)
- Fixed a wrong IP check in the geoip code. (#2842)

## [v2020.08.23] `August 23 2020`

### Added

- Added the missing mapflag constants `MF_NOMAPCHANNELAUTOJOIN`, `MF_NOKNOCKBACK`, `MF_CVC`, `MF_SRC4INSTANCE`. (part of #2654)
- Added official item script for Rune Boots. (#2806)

### Changed

- Refactored the mapflag related code to reduce repetition. The mapflag constants exposed to the script engine `mf_*` have been changed to uppercase `MF_*` to match their source counterparts. Custom scripts may need to be updated to follow. (#2654)

### Fixed

- Corrected the >10+ refine success chance with HD ores to match the normal ores. (#2772, issue #2771)
- Corrected the duration of the Tao Gunka Scroll to be 3 minutes. (#2804)
- Updated the Flying Galapago item script to match the official version. (#2799)
- Fixed a duplicate path separator in the `item_combo_db.conf` loader console messages. (#2814)
- Fixed an exploit in the autocast system, allowing to bypass the deletion of skill requirements under certain conditions. (#2819)
- Fixed a typo that made the `MERCINFO_ID` constant unusable from the script engine. (#2817)

## [v2020.07.26] `July 26 2020`

### Added

- Added information about the Random Item Options to the `OnSellItem` array list. (#2794, part of issue #2379)
- Added a new `mf_nopet` mapflag to control pet restrictions on a map by map basis. This supersedes the `pet_disable_in_gvg` battleconf setting. (#2652)
- Added/updated packets, encryption keys and message tables for clients up to 2020-07-15. (#2788)
- Added a new pair of item bonuses `bSubDefEle` and `bMagicSubDefEle` to reduce damage (physical and magical respectively) against a specific defense element. (#2790)

### Changed

- Changed the script command `gettimetick(0)` to never return negative values. The tick loop interval is reduced from about 50 to about 25 days, but the values are guaranteed to be positive. Since `gettimetick(0)` is only intended to be used for precise calculation of short durations, it is care of the scripter to account for overflows of the counter, treating it as a 31 bit unsigned integer operating in modulo `2**31`. For most uses, `gettimetick(2)` should be preferred. (#2791, issue #2779)
- Updated the Renewal formula for the `RG_SNATCHER` skill. (#2802)
- Refactored the scripts that use `OnTouch` areas and `enablednpc()`/`disablenpc()` logic to warp characters, to use `areawarp()` instead, simplifying the scripts and resolving some possible exploits and issues. (#2798)
- Changed the `@item2` atcommand's parameters to be optional, except the item ID. Default values of 1 for the Identified and Quantity parameters and 0 for everything else will be used, when not specified. (#2795)
- Updated/added the script for items that use `bSubDefEle` and `bMagicSubDefEle`. (part of #2790, issue #548)

### Fixed

- Fixed a possible exploit in the Dokebi Battle Quest allowing to spawn a higher than expected amount of Am Muts. (#2797)
- Fixed the Dokebi Battle Quest becoming impossible to complete until server restart under certain circumstances. (part of #2797)
- Fixed the `@changecharsex` command not correctly saving the updated gender to the database. (#2796, issue #2789)
- Fixed an issue that made the Moscovia Whale Island Quest impossible to complete. (#2792, issue #2715)
- Fixed a missing cleanup of the `dnsbl` vectors on shutdown. (part of #2788)
- Fixed the experience gain messages printing a literal `%"PRIu64"` instead of the gained amount of experience. (#2647)
- Fixed several typos in the configuration files. (#2769)

### Removed

- Removed the `pet_disable_in_gvg` battleconf setting in favor of the new `mf_nopet` mapflag. (part of #2652)

## [v2020.06.28] `June 28 2020`

### Added

- Added support to display a pet's intimacy in the egg's item description window. (#2781)
- Added a convenience macro `pc_has_pet()` to check whether a character has a pet. (part of #2781)
- Added convenience macros `pc_istrading_except_npc()` and `pc_cant_act_except_npc_chat()`. (part of #2775)
- Added support for `PACKET_ZC_PERSONAL_INFOMATION`, to replace the old custom status messages about rates and penalties. (#2757)
- Added a new configuration flag `display_rate_messages` (`conf/map/battle/client.conf`) to control whether and when to display the rate modifiers to players. (part of #2757)
- Added a new configuration flag `display_config_messages` (`conf/map/battle/client.conf`) to control whether and when to display the configuration messages to players as well as which messages to display. By default, now the pet autofeed and guild urgent call setting are also displayed, along with the others. (part of #2757)
- Added a new configuration flag `send_party_options` (`conf/map/battle/client.conf`) to control whether and when to display the party option messages to players, including some cases (on login, when options are changed, when a party member is added or removed) that were previously not available. (part of #2757)
- Added a new configuration flag `display_overweight_messages` (`conf/map/battle/client.conf`) to control whether and when to display the overweight notification message to players. (part of #2757)
- Added support to display the Tip of the Day message box on login. A new configuration flag `show_tip_window` (`conf/map/battle/client.conf`) is provided, in order to disable this feature. (part of #2757)
- Added missing plugins to the makefiles. (part of #2778)
- Added missing mobs and items in the pre-re database, necessary for loading custom scripts. (part of #2778)
- Added support for GitHub actions and added builds to test different flags and compilers and different MySQL/MariaDB versions. (part of #2778 and 9b89425550)
- Added/updated packets, encryption keys and message tables for clients up to 2020-06-03. (#2763)

### Changed

- Updated the documentation of the `instance_create()` to clarify the type of ID required to create each type of instance. Notably, instances of type `IOT_CHAR` require an account ID and not a character ID. (part of #2732, issue #2326)
- Updated the instancing system so that the instance information window is also displayed on login for instances of type `IOT_CHAR`, `IOT_PARTY`, `IOT_GUILD`, even if the instance state is `INSTANCE_IDLE`. (part of #2732)
- Changed the chatroom creation and trade checks to allow dead characters to perform them. A new configuration flag `allowed_actions_when_dead` (`conf/map/battle/player.conf`) is now available, to allow neither, either or both. (#2755, issue #2740)
- Changed the behavior when a pet's intimacy drops to 0 to immediately remove the pet rather than leaving it free to roam on the map. A new configuration flag `pet_remove_immediately` (`conf/map/battle/pet.conf`) has been added, to restore the old behavior. (part of #2781)
- Centralized some repeated code related to pet spawning and consolidated the sending of the pet's intimacy and hunger information to the client when appropriate. (part of #2781)
- Extended the `guild_notice_changemap` configuration flag with more fine grained settings on when to display the guild notice. Note: if you are currently overriding this setting, you'll need to update its value with the new meaning. (part of #2757)
- Enforced the use of signed characters on platforms where `char` is unsigned. (part of #2778)
- Travis-CI scripts and configuration updates: (part of #2778)
  - Improved the build speed by reducing the clone depth to 1.
  - Improved error reporting if an error occurs during tests.
  - Added configurations targeting the arm64 and ppc64le cpu architectures as well as the gcc-10 compiler.
  - Reduced the total amount of build configurations to improve the CI build time.
  - Added execution of the servers with all the plugins enabled in order to detect memory violations and errors.
  - Fixed some build failures caused by a false positive odr violation.
  - Added execution of the map server with all the custom scripts uncommented.
  - Disabled asan in the gcc-7 builds, as it's too slow.
- Converted `validateinterfaces.py` to Python 3. (part of #2778)
- Changed the plugin handler to call all plugin events even when the server is running in minimal mode. (part of #2778)
- Updated the friend list related packets for Zero clients. (part of #2763)
- Changed the storage (account and guild storage) to automatically close when using the teleport skill. A configuration flag `teleport_close_storage` (`conf/map/battle/skill.conf`) has been added to restore the previous behavior. (#2756, issue #1762)

### Fixed

- Fixed an issue when deleting instances of type `IOT_CHAR`. (part of #2732)
- Fixed an issue that prevented the removal of offline characters from parties to get correctly saved to the database. (#2762)
- Fixed the deletion of skill units belonging to an NPC when it gets unloaded. (#2712, issue #768)
- Fixed the selection of required items for various skills, such as Slim Potion Pitcher, for skill levels greater than 2. Required items are now selected through the `skill->get_item_index()` function. (#2774)
- Fixed the description of the meaning of rows and columns in the documentation for `db/*/attr_fix.txt`. (#2765)
- Fixed the behavior of the Megaphone item script to remove the normal script restrictions (walking, attacking, using skills and items, dropping and picking up items, trading, etc) while the message input box is present and not to be cancelled on death. (#2775, issue #2751)
- Fixed a client freeze when talking with an NPC or using a Megaphone while the Rodex window is open. Rodex and NPC scripts (or megaphones) are now mutually exclusive. (part of #2775)
- Added a workaround in the CI scripts to support MySQL/MariaDB setups where the normal grant code does not work. (part of #2778)
- Fixed a memory violation between core and plugins in the HPMDataCheck code. (part of #2778)
- Fixed warnings in the skill database parser when running in minimal mode. The battle configuration is now read in minimal mode. (part of #2778, issue #2776)
- Fixed warnings about missing maps that were present in the map index and scripts. (part of #2778)
- Fixed a duplicated `fclose()` call in the mapcache plugin. (part of #2778)
- Fixed conflicting NPC names in `re/merchants/hd_refiner.txt` and in various custom scripts. (part of #2778)
- Fixed builds on ARMv8, some ARMv7 versions and PPC64. (part of #2778)
- Fixed the field size of `struct script_state::npc_item_flag` to support all the possible values and reduced the maximum value of the `item_enabled_npc` configuration flag to 3. (#2784)
- Fixed the width of the path affected by Focused Arrow Strike to be 1 cell wide instead of 2 on each side. (part of #2785)
- Fixed a missing character ID in name requests. (part of #2763)
- Fixed an issue that caused loss of items when selling items to an NPC fails because of the character zeny cap. (#2782, issue #2780)
- Fixed the disappearance of status icon timers when the character spawns. (#2786, issue #580)

### Removed

- Removed a duplicated function `time2str` from `bg_common.txt`. (part of #2778)

## [v2020.05.31+1] `May 31 2020` `PATCH 1`

### Fixed

- Fixed a crash in the db2sql plugin with the MariaDB client library. (#2748)
- Fixed the job level stat bonuses for the Novice class to match the official servers. (#2747)
- Fixed an issue that caused the walk-path check to be never executed for skills that require the caster to be able to move. (#2761)
- Fixed an issue that caused "Unknown Skill" errors to appear while casting skills. The default value for the skill damage type field of the skill database is now `NK_NONE` instead of `NK_NO_DAMAGE`. (#2761, issue #2760)

## [v2020.05.31] `May 31 2020`

### Added

- Added the possibility to declare local NPC functions as public or private. (#2142)
  - Functions declared as private can be called from other scripts with the syntax `"npc name"::function_name()`.
  - The configuration option `script_configuration.functions_private_by_default` controls whether functions are public or private when not specified.
- Added a new cast condition `MSC_MAGICATTACKED` to the mob skill database, allowing mobs to react to magical attacks. (#2733, issue #2578)
- Added support for level-specific values in the skill database fields `Hit`, `AttackType`, `InterruptCast`, `CastDefRate`, `Requirement.State`, `Unit.Id`, `Unit.Interval`, `Unit.Target`, `Requirements.Items.Amount` (part of #2731)
  - Removed hardcoded required item amounts for various skills, moving them to the skill database.
- Added support for `Requirements.Items.Any` in the skill database, allowing skills that require any one of their item conditions to be verified (as opposed to all). (part of #2731, issue #1250)
- Added support for `Requirements.Equip` in the skill database, allowing to specify a required equipment to cast a skill. (part of #2731)
  - Removed hardcoded equip requirements for various skills, moving them to the skill database.
- Added support for `Requirements.MaxSPTrigger` in the skill database, allowing to specify a maximum SP percentage that allows to cast a skill. (part of #2731)
- Added/updated packets, encryption keys and message tables for clients up to 2020-05-20. (#2713)
- Added support for the gcc sanitizer flags `address-use-after-scope`, `pointer-overflow`, `builtin`, `pointer-compare`, `pointer-subtract`, `shift-exponent`, `shift-base`, `sanitize-address-use-after-scope`. (part of #2713)
- Added support for binary and octal number literals in scripts and libconfig configuration files, using the syntax 0b000 / 0o000. (#2671)
- Added support for number separators in number literals in scripts and libconfig configuration files. The symbol `_` can be used as grouping separator (`1_000_000`, `0x_ffff_ffff`, etc). (part of #2671)
- Added support for overriding `ENABLE_SC_SAVING`, `MAX_CARTS`, `MAX_SLOTS`, `MAX_AMOUNT`, `MAX_ZENY`, `MAX_BANK_ZENY`, `MAX_FAME`, `MAX_CART` through CFLAGS. (#2220)
- Added a `skill_enabled_npc` battle flag allowing to specify whether self-targeted or targeted skills can be used while interacting with NPCs. (part of #2718, issue #862)
- Added the `loudhailer()` script command, as used by the `Megaphone_` item. (#2758, issue #2751)

### Changed

- Added validation for the maximum length of permanent string variables and consolidated it to 255 characters. This requires a database migration. (#2705, issue #1037)
- Split the `mapreg` SQL table into separate tables for integer and string variables. This requires a database migration. (#2720)
- Updated the AUTHORS file to include names and emails from every commit so far. A helper script `tools/authors.sh` to extract them has been added. (#2729, issue #245)
- Updated the drop chance of the Black and White Wing Suits. (#2739, issue #562)
- Improved validation and bounds checking in the skill database loader. (#2731)
  - Increased the maximum length of the skill descriptions (display names) to 50. (part of #2731)
  - Increased the maximum skill level to 20 (to support `NPC_RUN`). (part of #2731)
  - Capped the SkillInstances values to 25 (`MAX_SKILLUNITGROUP`) in the skill database. (part of #2731)
- Extended the `item_enabled_npc` battle flag and the `enable_items()`/`disable_items()` script commands with finer grained options to allow the use of usable items or equipment while interacting with NPCs. (#2718)
- Changed the default setting of `player_warp_keep_direction` to match the official servers' setting. (#2752)
- Replaced the (failing) gitlab-ci centos6 builds with centos8 (released in september 2019). (#2759)

### Fixed

- Fixed the logic and interaction between the (element)proof Potions and Undead Scrolls and their status icons. (#2708)
- Fixed an issue in the Lost Puppies quest causing the dogs to be unable to reappear. (#2698)
- Fixed a possible data corruption caused by gender mismatch after a changesex/changecharsex operation. (#2714, issue #985)
- Fixed a warning and name truncation when receiving a whisper message with a recipient name with a length of 24 characters. This allows to whisper to scripts with a name length up to 20 (through the `NPC:name` syntax). (#2721, issue #718)
- Fixed interaction between `itemskill()` other item/skill uses, including other `itemskill()`. The autocast code has been changed to use a vector, to allow multiple concurrent skills. (#2699)
  - It's now possible to use multiple `itemskill()` calls in the same item, as long there is at most one targeted skill, and it's the last one used.
  - It's now possible to use items while the target cursor for a previously activated skill is visible, without aborting it. (issue #816)
  - It's now possible to use a scroll while casting another skill (and the provided skill will be cast after the current one finishes). (issue #1026)
- Fixed use of Fly Wing/Butterfly Wing while riding a cash shop mount (Boarding Halter) and having a falcon. (part of #2699, issue #2750)
- Fixed the `Requirements.MaxHPTrigger` conditions for mercenary skills. (part of #2731)
- Fixed a possible memory corruption or crash in the mob delayed removal function. (part of #2713, issue #2719)
- Fixed a crash in the `npcshopdelitem()` script command. (part of #2713)
- Fixed a crash in the achievement progress update code. (part of #2713)
- Fixed a possible crash in the RODEX check name function. (part of #2713)
- Added null pointer checks for missing view data in clif and status code. (part of #2713)
- Added a check for the current map in mob and map code. (part of #2713)
- Fixed an error or possible crash when a mob dies on an invalid map. (part of #2713)
- Fixed an incorrect npc ID for the MOTD script after reloading or unloading scripts. (part of #2713)
- Fixed an use after free in `party->broken()`. (part of #7213)
- Fixed a possible crash in `mapif->guild_withdraw()`. (part of #2713)
- Fixed a null pointer error in `unit->steptimer()`. (#2723, issue #2707)
- Fixed the left-shift of a negative value in `GN_CRAZYWEED_ATK`. (#2734, issue #1151)
- Fixed a missing "Beloved" attribute on the eggs of renamed pets. (#2744, issue #2743)
- Fixed an inverted logic in the `storage_use_item` battle flag. (#2746)
- Fixed the mineffect map property flag so that it's not affected by the character's minimized effects but only by the map type. It's enabled on all the guild castles, regardless of whether WoE is running. (#2754, issue #803)
- Fixed a crash in the equip check code if a character logs wearing an item that was previously, but is no longer, equippable. (#2745)
- Fixed a compiler warnings in 32 bit builds. (#2759)

### Deprecated

- Deprecated the (unintended and undocumented) possibility of calling local NPC functions as event labels if their name started with `On`. (part of #2142, issue #2137)
  - The functionality is now disabled by default, and can be enabled by changing the `script_configuration.functions_as_events` setting.

### Removed

- Removed old debug code from the `SC_DANCING` case of `status_change_end_()`. (#2736, issue #2716)
- Removed useless `FixedCastTime` values from the pre-re skill database. (part of #2731)

## [v2020.05.03] `May 03 2020`

### Added

- Added the new pets (including the jRO exclusive ones) and their related items/monsters to the renewal database. (#2689)
- Added constants `ALL_MOBS_NONBOSS`, `ALL_MOBS_BOSS`, `ALL_MOBS` for the special mob IDs for global skill assignment in the mob skill database. (part of #2691)
- Added support for `__func__` on Windows, since it's now available in every supported compiler. (part of #2691)
- Added documentation for the mob skill database. See [doc/mob_skill_db.md](doc/mob_skill_db.md). (#2680)
- Added missing functions for the name ack packets for `BL_ITEM` and `BL_SKILL`. (part of #2695)
- Added/updated packets and encryption keys for clients up to 2020-04-14. (#2695)
- Added support for packets `ZC_LAPINEUPGRADE_OPEN`, `CZ_LAPINEUPGRADE_CLOSE` and `ZC_LAPINEUPGRADE_RESULT` and a placeholder for `CZ_LAPINEUPGRADE_MAKE_ITEM`. (part of #2695)
- Added a new cell type `cell_noskill`, to block skill usage. (#2188)

### Changed

- Removed warning messages about missing elements in the mob db, since it's an optional field. (part of #2689)
- Updated the renewal pet database with the correct values and bonuses. (part of #2689, issue #2435)
- Changed `mob_getfriendstatus()` to consider character as friends of their support monsters, for consistency with `mob_getfriendhprate()`. (part of #2691)
- Changed `MSC_AFTERSKILL` to trigger on any skill when its `ConditionData` is 0, for consistency with `MSC_SKILLUSED`. (part of #2691)
- Improved data validation and error reporting in the mob skill database. (part of #2691)
- Changed return values of `mob_skill_use()` and `mobskill_event()`. Any third party code that uses them needs to be updated. (part of #2691)
- Changed the battle configuration flag `manner_system` to be applied immediately to any existing `SC_NOCHAT`. (#2696, issue #227)
- Changed the `atcommand()` command to ignore `PCBLOCK_COMMANDS`. (#2062)

### Fixed

- Fixed `SC_AUTOTRADE`, `SC_KSPROTECTED` and `SC_NO_SWITCH_EQUIP` incorrectly recognized as unknown status changes. (#2686, issue #2684)
- Prevented `SC_KSPROTECTED` from starting on dead monsters. (part of #2686)
- Fixed character unhiding while disguised or when using `@option 0`. (#2687, issues #1556 and #2104)
- Fixed an incorrect order of operations causing results too small in various calculations related to free cell search, mob skill chances/delays, exp penalty, pet hunger and friendly rates, cast duration. (#2690)
- Fixed errors caused by `pet_ai_sub_hard()` called for monsters that haven't been added to a map yet. (#2693)
- Fixed a wrong packet error displayed when using an incorrect password for the char-login connection. (part of #2695)
- Fixed a security check in the lapine ack packet handler. (part of #2695)
- Fixed some incorrect assumptions about the skill index values, causing the Bard/Dancer soul link to grant the wrong skills. (#2710, issue #2670)
- Fixed some conditions that could cause a skill to be attempted to save to the database with a negative skill level, resulting in query errors and data loss. (part of #2710)
- Fixed the skill type of `RK_DRAGONBREATH` and `RK_DRAGONBREATH_WATER` to be `BF_WEAPON` and support the `bLongAtkRate` bonus. (#1304)
- Fixed `SC_TELEKINESIS_INTENSE` to add percent MATK instead of fixed MATK. (part of #1304)

## [v2020.04.05] `April 05 2020` `PATCH 1`

### Fixed

- Fixed a regression that prevented pets from hatching. (#2685, issue #2683)

## [v2020.04.05] `April 05 2020`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2020-04-01. (#2663)
- The `setpcblock()` and `checkpcblock()` can now be used on another character by passing the account id. (#2668)
- Added new StatusChange types (`SC_POPECOOKIE`, `SC_VITALIZE_POTION`, `SC_SKF_MATK`, `SC_SKF_ATK`, `SC_SKF_ASPD`, `SC_SKF_CAST`, `SC_ALMIGHTY`) and updated relevant items. (#2658, related to #1177)
- Added _libbacktrace_ support (currently Linux-only) for better error call stack logging. (#2581)

### Changed

- Extended the atcommand `@fakename` with a new `options` parameter, to select which names will be displayed. (#2637, related to issue #1966 and #2168)
- Refactored the pet system code. (#2600, issues #2434 and #303)
  - Added enumerations for pet hunger/intimacy levels
  - Added value capping to `pet_set_intimate()` function.
  - Adjusted pet catch rate calculation. The old, custom, calculation can be restored by setting the `pet_catch_rate_official_formula` battle config flag to false.
  - Adjusted pet intimacy calculation when feeding.
  - Improved validation of the Pet DB fields and of the input of various pet related functions.
  - Removed the redundant `SpriteName` field from pet DB.
  - Changed `EggItem` field in pet DB to be mandatory.
  - Added new field `HungerDecrement` to pet DB. This replaces the `pet_hungry_friendly_decrease` battle config setting.
  - Added new field `Intimacy.StarvingDelay` to pet DB.
  - Added new field `Intimacy.StarvingDecrement` to pet DB.
  - Increased `MAX_MOB_DB` to 22000.
  - Added pet DB documentation file. ([doc/pet_db.txt](doc/pet_db.txt))
  - Removed fields from pet DB where default values can be used.
  - Added intimacy validation to pet DB `EquipScript` fields. This replaces the `pet_equip_min_friendly` battle config setting.
  - Adjusted `inter_pet_tosql()` and `inter_pet_fromsql()` functions to use prepared statements.
  - Refactored and/or updated code style of various functions that were touched by this pull request.
- Added a backtrace to the error message of `clif_unknownname_ack()`. (part of #2663)
- Added a `UNIQUE` constraint to the `userid` column of the `login` SQL table to prevent having multiple accounts with the same name. (#2666, related to #2169)
- Increased the column size of `list`for the `ipbanlist` SQL table to accomodate for non-wildcard IPv4 and for IPv6 compatiblity. (#2665, issue #2631)

### Fixed

- Fixed memory violations and incorrect handling of `npc_data` in the quest info code. (#2682)
- Fixed an issue that prevented the fake name to show up when using `@fakename` in RE clients. (part of #2637)
- Fixed a compiler error in `PACKET_ZC_SE_CASHSHOP_OPEN`. (part of #2663, issue #2669)
- Added missing libraries into the plugins Makefile, causing a linking error when a plugin uses MySQL or other libraries. (part of #2663)
- Fixed a bug causing failed assertions that appeared when attacking a skill unit (such as Ice Wall). (#2678)
- Fixed a bug causing failed assertions in `timer_do_delete()`, related to `ud->walktimer`. (#2676)
- Fixed a bug allowing to equip bullets and grenades regardless of the weapon type. (#2660, issue #2661, related to #2579)
- Fixed a memory leak in barter NPCs. (#2655)
- Fixed a pointer overflow in the script command `getiteminfo()`.  (#2656)
- Refactored and fixed several bugs in the skill auto-cast system. (#2657, issue #1211)

### Removed

- Removed the `pet_hungry_friendly_decrease` battle config setting, superseded by the `HungerDecrement` field of the Pet DB. (part of #2600)
- Removed the `pet_equip_min_friendly` battle config setting, superseded by the code inside the Pet DB `EquipScript` fields. (part of #2600)
- Removed the redundant `SpriteName` field from pet DB. (part of #2600)

## [v2020.03.08+2] `March 08 2020` `PATCH 2`

### Fixed

- Fixed an incorrect return value in `unit->walktobl()` causing mobs to get stuck when they try to loot. (#2664)

## [v2020.03.08+1] `March 08 2020` `PATCH 1`

### Fixed

- Fixed an incorrect return value in `unit->walktobl()` causing mobs to be unable to walk to their target. (#2659)

## [v2020.03.08] `March 08 2020`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2020-03-04. (#2645)
- Exposed the item bound type (`IBT_*`) constants to the script engine. (#2650)
- Added item scripts for item IDs 12459 through 12465 and corrected their name in the pre-renewal DB. (#2634, issue #1196)
- Added the `unitiswalking()` script command, to check whether an unit is walking at a given time. (#2628)

### Changed

- Changed the default `PACKETVER` to 2019-05-30. (part of #2645)
- Major refactoring of the functions in `unit.c`, adding code documentation and following the code style guidelines. Functions have been renamed when backward compatible changes to the arguments or return values were made. (#2546)
  - A new header `unitdefines.h` has been added.
  - `enum unit_dir` is now provided, to standardize handling of facing/walking directions.
  - The macros `unit_get_opposite_dir()`, `unit_is_diagonal_dir()`, `unit_is_dir_or_opposite()`, `unit_get_ccw90_dir()`, `unit_get_rnd_diagonal_dir()` have been added.
  - `unit->walktoxy_timer()` has been renamed to `unit->walk_toxy_timer()` and its return values have been changed and documented.
  - `unit->walktoxy_sub()` has been renamed to `unit->walk_toxy_sub()` and its return values have been changed and documented.
  - `unit->delay_walktoxy_timer()` has been renamed to `unit->delay_walk_toxy_timer()` and its return values have been changed and documented.
  - `unit->walktoxy()` has been renamed to `unit->walk_toxy()` and its return values have been changed and documented.
  - `unit->walktobl_sub()` has been renamed to `unit->walk_tobl_timer()` and its return values have been changed and documented.
  - `unit->setdir()` has been renamed to `unit->set_dir()` and its return value and arguments have been changed and documented.
  - `unit->getdir()` has been renamed to `unit->get_dir()` and its return type and constness of the arguments have been changed.
  - `unit->warpto_master()` has been added.
  - `unit->sleep_timer()` has been renamed to `unit->sleeptimer()` and its return values have been changed and documented.
  - `unit->calc_pos()` now accepts `enum unit_dir`.
  - `map->check_dir()` now accepts `enum unit_dir`.
  - `map->calc_dir()` now returns `enum unit_dir` and accepts a const bl.
  - `npc->create_npc()` now accepts `enum unit_dir`.
  - `skill->blown()` now accepts `enum unit_dir`.
  - `skill->brandishspear_first()` now accepts `enum unit_dir`.
  - `skill->brandishspear_dir()` now accepts `enum unit_dir`.
  - `skill->attack_blow_unknown()` now accepts `enum unit_dir`.
  - The remaining unit functions have been documented.
- New return values have been added to `pc->setpos()`, for better error handling. (#2633, issue #2632)
- Increased the `MAX_MOB_LIST_PER_MAP` value to 115 in pre-renewal builds, to fit all the default spawns. (#2638, issue #1915)
- Extended the `getiteminfo()` command to also accept item names, and added the types `ITEMINFO_ID`, `ITEMINFO_AEGISNAME`, `ITEMINFO_NAME`. (#2639)
- Changed `itemskill()` to ignore conditions by default. The `ISF_CHECKCONDITIONS` needs to be explicitly passed if conditions should be checked/consumed. (part of #2648)
- Changed the NPC shop behavior to prevent selling items from the favorites tab of the inventory. (#2651)
- Updated Doxygen configuration to speed up generation and fix compatibility warnings. (0d747896e0)
- Updated the Travis-CI configuration file according to the validation warnings and notices. (eb97973e68)

### Fixed

- Fixed a missing `get_index()` call in `Skill2SCTable`, causing some skills to activate the wrong status. (#2643, issue #2636)
- Fixed a compilation error C2233 in Visual Studio. (part of #2645)
- Fixed Basilica unintentionally restraining boss mobs. (#2612, issue #1276, related to issue #2420)
- Fixed the handling of unequip scripts in zones where an item is restricted. The `OnUnequip` script is now never executed when unequipping in a restricted zone, but it is always executed when entering such zones, regardless of the `unequip_restricted_equipment` battle flag. (#2642, issue #2180)
- Fixed the handling of skill requirements and conditions by the `itemskill()` command. (#2648, issue #2646)
- Added missing requirements to `CASH_INCAGI` and `RK_CRUSHSTRIKE`. (part of #2648)

### Removed

- Removed the `ISF_IGNORECONDITIONS` flag previously used by `itemskill()`, now the default behavior. (#2648)

## [v2020.02.09] `February 09 2020`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2020-02-06. (#2625)
- Added support for the expanded barter shop, see example script in `npc/custom/expandedbartershop.txt` and the related script commands `sellitem()`, `startsellitem()`, `sellitemcurrency()`, `endsellitem()`. Note: this includes a database migration. (part of #2625)
- Added the new script commands `cloakonnpc()` and `cloakoffnpc()`. (part of #2615)
- Added the new script command `achievement_iscompleted()` to check for achievement completion. (part of #2615)
- Added Exploration Achievement NPCs. (#2615)
- Added support for an `OnNPCUnload` label, where a script can perform its cleanup before being unloaded (such as removing mapflags, etc). (part of #2590)
- Added the Rebellion jobchange quest and its related mobs and items. (#2621)
- Added support for switching madogear type. See the documentation for `setmount()` and the related `MADO_ROBOT` and `MADO_SUITE` constants. (#2586)

### Changed

- Changed the logic of `skill_get_index` to make it easier to add new skills, custom or official. (#2596)
- Refactored `int_party` code related to exp sharing calculations. (part of #2601)
- Updated the Duel system cooldown to be configurable with seconds granularity. The `duel_time_interval` setting can be safely updated and with `@reloadbattleconf`, applying to any existing cooldowns. (#1495)
- Converted `PACKET_ZC_STATE_CHANGE` to use its struct format and added a function to send it to a single target. (part of #2615)
- Changed the behavior of `@unloadnpc`, `@reloadnpc`, `@unloadnpcfile` to kill the monsters that were spawned by the unloaded script (non-permanent spawns). (#2590, issue #2530)
- Updated the `mobdbconverter.py` tool to support Race, Size and Element constants. The script now requires Python 3. (#2620)
- Cleaned up a duplicate definition of `SP_VARCASTRATE` in `pc_readparam()`. (#2624, issue #1311)
- Extended `itemskill()` with a new `ISF_INSTANTCAST` flag to be able to cast a skill without cast time. (part of #2616)
- Extended `itemskill()` with a new `ISF_CASTONSELF` flag to be able to forcefully cast a skill on the invoking character. (part of #2616)
- Converted `ZC_AUTORUN_SKILL` to use its struct format. (part of #2616)

### Fixed

- Fixed some signed/unsigned mismatch compiler warnings. (#2601, issue #1434)
- Fixed some cases where the family exp sharing state wasn't correctly detected. (part of #2601)
- Fixed a duplicate "Skill Failed" message when using Asura Strike. (part of #2248, issue #1239)
- Fixed an issue that made a character turn to face its target after casting Asura Strike. (#2248, issue #1239)
- Fixed the position of a character after a failed Asura Strike cast, to be 3 cells from its original position instead of 2. (part of #2248, issue #1239)
- Fixed the status icon from the Elemental Resistance Potions and the Undead Element Scroll not disappearing when the status changes end. (#2614, issue #2593)
- Fixed a crash when using `@loadnpc`, `@reloadnpc` or `@unloadnpcfile` on a directory. (part of #2590, issue #1279)
- Fixed `PR_STRECOVERY` to only cure status effects if the target's element isn't Undead. (#2618, issue #2558)
- Fixed the mobs spawned by `mob_clone_spawn()` (`clone()`, `@evilclone`) being invulnerable because of an uninitialized `dmg_taken_rate` taking the value of 0. (#2617, issue #2607)
- Fixed a crash when the script function `getunits()` was called with an invalid mapindex. Now an error message is added when the mapindex validation fails. (#2619)
- Fixed a crash when `map_forcountinmap()` was called with an invalid mapindex. Now the function will return 0 instead. (part of #2619)
- Fixed clientside errors when using a `ViewData` block in the mob database without specifying a `HairStyleId`. The hair style will now default to 1 when a `ViewData` block is specified. (#2622)
- Fixed the damage calculation being too low when using weapons of type `W_RIFLE` (in pre-renewal). (#2623)
- Fixed an issue that could cause homunculi to be in an unexpected partially-vaporized state (i.e. when a Vanilmirth kills its own master through `HVAN_EXPLOSION`). (#2626)
- Fixed NPC ID validation when `SECURE_NPCTIMEOUT` is defined, causing scripts to abort with an "Unknown NPC" error on the console. (#2627, issue #2073)
- Fixed the skill condition checks and the `flag` parameter of `itemskill()`. The constants `ISF_NONE` and `ISF_IGNORECONDITIONS` are now available. (part of #2616)
- Fixed the `itemskill()` items to provide their proper Aegis behavior, in their requirement checks, self-targeting and item consumption.  (#2616, issue #819)
- Fixed the Earth Spike Scroll to consume 10 SP when `SC_EARTHSCROLL` is active. (part of #2616)
- Fixed warnings in the HPMHookGenerator. (1000b10026)

## [v2020.01.12] `January 12 2020`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2020-01-08. (#2599)
- Added support for auto exp insurance items. (#2603)
- Added the script commands `resetfeel()` and `resethate()`. (#2285)
- Added the atcommand `@hatereset`. (part of #2285)

### Changed

- Extracted packet `ZC_SE_CASHSHOP_OPEN` to a separate function. (part of #2599)
- Renamed the functions `clif_parse_CashShop*` into `clif_parse_cashShop*`. (part of #2599)
- Converted `clif_partytickack()` to use the struct version of packet `ZC_PARTY_CONFIG`. (part of #2599)
- Extended `setpcblock()` with a new `PCBLOCK_NPC` functionality to prevent players interacting with NPCs (e.g. During some npctalk dialogue). (#2606)
- Extended `warpparty()` and `warpguild()` with an option to disregard the `nowarp` and `nowarpto` mapflags. (#2604, issue #1861)
- Updated copyright header for year 2020.

### Fixed

- Fixed reading water level from RSW version 2.2 and newer. (part of #2599)
- Fixed `pc_have_item_chain()` to retrieve the chain ID from the chain cache. (part of #2603)
- Fixed an overflow in a zeny check condition in RODEX, causing code to never be executed. (#2266)
- Fixed a re-definition of HPM related symbols in plugins with multiple compilation units. (#2608)

## [v2019.12.15] `December 15 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-12-11. (#2585)
- Added new version of packet `ZC_NOTIFY_EFFECT3`. (part of #2583)
- Added script function `specialeffectnum()`. (part of #2583)

### Changed

- Reduced the IP ban column length to 13 characters, matching the length of the inserted data. A database migration is required. (#2583, issue #2349)
- Converted packet `CZ_SE_CASHSHOP_OPEN` into a struct. (part of #2583)
- Replaced the old MySQL Connector with MariaDB C Connector 3.1.5 / Client Lib 10.4.3, for the Windows VS builds. (#2580)
- Moved the functionalities of `mob_avail.txt` to the mob database, expanding it with more fields (see the `mob_db` documentation for details). (#2572)

### Fixed

- Fixed incompatibilities with MySQL 8. (part of #2580)
- Fixed errors when `guild_skill_relog_delay` is set to 1 (reset on relog). (#2592, issue #2591)
- Fixed Tarot Card equipment breaking behavior to match the official, targeting only Left Hand (Shield), Armor and Helm. (#2589)
- Fixed racial crit bonuses not being affected by katar crit bonus. (#2588)
- Fixed interaction between Lex Aetherna and Stone/Freezing, now mutually exclusive. (#2598, issue #2559)

### Removed

- Removed `mob_avail.txt`, since its functionality has been moved to the mob database. (part of #2572)

## [v2019.11.17+1] `November 17 2019` `PATCH 1`

### Added

- Added an SQL linter. The `./tools/checksql.sh` script can be used to automatically validate the syntax of every file in the `sql-files` folder (note: dependencies might need to be installed through composer). The script is also executed in the Travis builds. (#2582)

### Fixed

- Fixed a syntax error in the `2019-10-12--14-21.sql` migration file. (part of #2582)

## [v2019.11.17] `November 17 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-11-13. (#2568)
- Added support for packet `CZ_REQ_MOUNTOFF`. (part of #2568)
- Added a missing building entrance portal in Juno and in Lighthalzen. (#2542)
- Added the script command `getguildinfo()` and its related constants `GUILDINFO_*`, to lookup information about a guild. (#2566)
- Added a separate configuration flag in `map_log.enable` to control the logging of `LOG_TYPE_LOOT`. (part of #2560, issue #2414)
- Added a new log type, `LOG_TYPE_ACHIEVEMENT` and its configuration flag, to control the logging of achievement-granted items. A database migration is required. (#2560, issue #2414)
- De-hardcoded the boss monsters' resistance to some status effects. It's now controlled by a new `NoBoss` flag in `sc_config`. (#2570)
- De-hardcoded the combo skills chaining check. It's now controlled by a new `IsCombo` flag in `skill_db`. (#2573)
- De-hardcoded the status icons. They are now defined through a new `Icon` field in `sc_config`. (#2577)

### Changed

- Added error details to the python converter tools when a libconfig parsing error is encountered. (part of #2568)
- Converted packet `CZ_LAPINEDDUKDDAK_CLOSE` into a struct. (part of #2568)
- Updated the location of various NPCs: portals in Juno, sign post in Brasilis, Young Man in Payon (pre-renewal). (part of #2542)
- Reordered the loading of the stylist DB to be before the loading of NPC scripts, for consistence with the other DB files. (#2571)

### Fixed

- Fixed an incorrect nullpo check when slave monsters are summoned by an alchemist. (#2574, issue #2576)
- Fixed the Steal skill not showing the HP bar of the targeted monster right away but only when leaving and re-entering sight range. (part of #2567)
- Fixed a regression in the Steal skill that caused it to allow stealing of some cards. Card stealing prevention is now enforced by item type rather than by position in the drop list. (#2567)
- Fixed the `@fakename` to display the overridden name regardless of whether the character is disguised. (#2548, issue #2539)
- Fixed the `target_to` field not being cleared appropriately, causing monsters to get stuck in a loop walking to their previous target that has died, and causing hunters with auto-attack to be unable to walk away from their target and cancel their attack action. (#2564)
- Fixed the handling of HULD .po translations that contain the `\r` escape sequence. (#2569)
- Fixed the unintended clearing of status changes granted by passive guild skills, via `sc_end(SC_ALL)`. (#2575, issue #1147)

### Deprecated

- Deprecated the script command `getguildname()`, use `getguildinfo(GUILDINFO_NAME, <guild id>)` instead. (part of #2566)
- Deprecated the script command `getguildmaster()`, use `getguildinfo(GUILDINFO_MASTER_NAME, <guild id>)` instead. (part of #2566)
- Deprecated the script command `getguildmasterid()`, use `getguildinfo(GUILDINFO_MASTER_CID, <guild id>)` instead. (part of #2566)

### Removed

- Removed the `SI_*` constants from the source code, now available through `constants.conf`. (part of #2577)

## [v2019.10.20] `October 20 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-10-02. (#2537)
- Added a new config file `conf/common/map-index.conf` to customize the location of the `map_index.txt` file. (part of #2547)

### Changed

- Moved several hardcoded messages to `messages.conf`. (#2152, issue #1282)
- Updated the `@dropall` command to correctly show the amount of dropped (and skipped) items. (#2545)
- Split the HULD generated translations into smaller (and easier to manage) files. A translation will now consist of a folder, with one .po (.pot) file per script. Third party translations may need to be updated to match this change. (#2492)
- Changed the slave monsters' behavior to react to chase the same target as their master, to match the official behavior. A configuration setting `slave_chase_masters_chasetarget` has been provided in `battle/monster.conf` for those that wish to keep using the old custom behavior. (#2561)
- De-hardcoded the path to the `db` folder, now using `map_configuration.database.db_path` and `char_configuration.database.db_path` in the map and char server respectively. This allows the user to customize the location of the db folder. (#2547)

### Fixed

- Fixed an exploitable issue in the Izlude Arena party mode script. (#2538)
- Fixed a buffer overflow in the `buildin_npcshopdelitem()`. (#2540)
- Fixed a potentially exploitable issue in the Ore Downgrade script. (#1935, issue #1934)
- Corrected the item bonus for `Drooping_Kitty_C`. (#2543)
- Corrected the display of the Sense skill to cap to 0 the negative resistance values instead of underflowing them. (#2544)
- Fixed compilation warning with gcc-9. (part of #2537)
- Fixed the HP bar of party members not showing when they unhide. (#2549)
- Fixed the status change timers not showing the correct values in the client, after relogging. This requires a database migration. (#2551, issue #2018)
- Corrected Magnum Break's 2 second delay to be an after-cast delay (reducible by Bragi's Poem) instead of a cooldown. (#2553)
- Fixed an issue that prevented players from closing their own vending shop. (#2555, issue #2554)
- Fixed the Homunculus skill requirements being applied to the master as well. (#2556)
- Fixed the Homunculus skill failure message not displaying any required items (part of #2556)
- Fixed the Chaotic Blessings skill from Vanilmirth never picking the enemy as its random target to heal. (part of #2556)
- Fixed an issue that caused the saved character data to retain the old party ID after leaving or getting kicked. (#2562)
- Fixed some possible crashes or memory corruption caused by dangling pointers to guilds in the character data. (part of #2562, related to issue #1266)
- Fixed the party name not getting removed from all affected characters (clientside) when a party is disbanded. (part of #2562)
- Fixed a crash in the console command parser when a line consisting only of spaces is executed. (#2563)
- Fixed the argument string passed to console commands when the input starts with multiple adjacent spaces. (part of #2563)
- Fixed the mapindex value not getting updated in the `gm:info` console command. (part of #2563)
- Fixed an issue that caused aggressive monsters with ranged attack to be unable to attack from above a cliff. (#2550)

### Removed

- Removed the legacy, unused, `castle_defense_rate` option from `battle/guild.conf`. (#2552)

## [v2019.09.22] `September 22 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-09-18. (#2528)
- Added the `@changecharsex` command, to change a character's sex. (part of #2528)
- Added support for clan names in the name packets. (part of #2528)
- Added support for multiple Token of Siegfried item IDs. (#2515)
- Added support for the new guild UI features in the client. (#2519)
- Added per-item scriptable start/end rental functions, replacing the previous hardcoded functionality. See the new item DB fields `OnRentalStartScript` and `OnRentalEndScript`. (#2462, issue #140)
- Added the `getfont()` script command, to check the player's current chat font. (part of #2462)
- Added support for gcc-9 by disabling the array bound checks until the `ZEROED_BLOCK` related code will be fully compatible (#2536)
- Implemented the LapineDdukDdak System. (#2336)
- Implemented the Library Mistake Quest, allowing players to bypass the rebirth costs. (#2532)

### Changed

- Converted `sc_config` to libconfig. A tool to convert from the old format has been provided in `tools/scconfigconverter.py`. (#2526)
- Converted packet `ZC_TALKBOX_CHATCONTENTS` into a struct. (part of #2528)
- Extracted homunculus experience gain message code to a separate function. (part of #2528)
- Changed function arguments to type `enum battle_dmg_type` where applicable. (part of #2528)
- Changed pets, homunculi, etc. not to be loaded when autotrading. (part of #2524)
- Changed the guild castle IDs order to match the client's. (#part of #2519)
- Converted the item combo DB to libconfig. A tool to convert from the old format has been provided in `tools/itemcombodbconverter.py`. (#2529)
- Changed some remaining symbols to `static`. (part of #2536)
- Updated the gitlab-ci builds to reflect the release of Debian 10 buster. Gcc-8 is now the primary compiler used for the gcov, asan and i386 builds. (part of #2536)
- Increased the maximum allowed item ID to int32 max, for clients supporting it. (part of #2336)

### Fixed

- Fixed packet `ZC_ACK_RANKING` on old (2013 and earlier) clients. (part of #2528)
- Fixed an issue preventing homunculus auto-vaporize on death or skill reset, when the 80% HP condition isn't met. (#2524)
- Fixed a bug that caused homunculi's HP and SP to be refilled on every login instead of just on creation. (part of #2524)
- Fixed the intimacy requirement check for the homunculus ultimate skills. (part of #2524)
- Fixed the MVP tombstones causing players to get stuck if they were reading their message when the MVP respawns. (#2525)
- Fixed the MVP tombstones showing their message multiple times when clicked. (part of #2525)
- Fixed some incorrect examples of use of `while (select(...))` in the script documentation. (#2533)
- Corrected the item ID used by the KVM Logistic Officer. (#2527, issue #2404)
- Fixed several subtle issues caused by the nick partial match feature, when enabled. Now the partial match is only performed for lookups requested by atcommands and client features, while a full match is used for source and script lookups. (#2523)
- Rewritten the `itemdb_searchname_array` function, now properly supporting the items with IDs greater than 65535. (#2535)
- Fixed support for items with IDs greater than 65535 in the constdb2doc plugin. (part of #2535)
- Fixed a minor C standard compliance error, mixing function pointers and non-function pointers. (part of #2536)
- Fixed the (commented out by default) custom Venom Splasher countdown timer code. (part of #2536)

## [v2019.08.25] `August 25 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-08-21. (#2517)
- Added icons for the elemental resistance status changes (`SC_ARMORPROPERTY`). (#2516)
- Added Visual Studio 2019 solution. (#2520)
- Added new NPC ID constants. (#2521)

### Changed

- Converted various packets (`ZC_ADD_SKILL`, `ZC_SKILLINFO_LIST`, `ZC_SKILLINFO_UPDATE2`) into structs and added a new version for `ZC_NPC_MARKET_PURCHASE_RESULT`. (part of #2517)
- Added missing sanity checks into many clif functions. (#2501)
- Extended the `getequiprefinerycnt()` command to accept multiple equipment slots at the same time, returning the total refine of them. (#2512)
- Added the path (relative to the Hercules root) to various database reading status messages. (#2513)
- Extended `setiteminfo()` and `getiteminfo()` with additional options: `ITEMINFO_ELV_MAX`, `ITEMINFO_DELAY`, `ITEMINFO_DROPEFFECT_MODE`, `ITEMINFO_CLASS_*`, `ITEMINFO_FLAG_*`, `ITEMINFO_STACK_*`, `ITEMINFO_ITEM_USAGE_*`, `ITEMINFO_GM_LV_TRADE_OVERRIDE`. (#2518)

### Fixed

- Fixed packets `ZC_BROADCASTING_SPECIAL_ITEM_OBTAIN` and `ZC_MAKINGITEM_LIST`. (part of #2517)
- Fixed an overflow in the auto bonus processing function, that made it unable to handle costume/shadow gears. (#2514, issues #1355, #1190, #2451)

### Removed

- Removed Visual Studio 2013 solution. (part of #2520)
- Removed round-trips to the inter-server for packets related to whisper messages, reports to GMs, GM broadcasts, party, guild and main chat, previously needed for, now unsupported, multi-zone setups. (#2522)

## [v2019.07.28] `July 28 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-07-24. (#2498)
- Added a setting to have `@autoloot` take player drop penalties/bonuses into account. See `autoloot_adjust` in `drops.conf` for details. (#2505)
- Added a mob DB field `DamageTakenRate` to change the rate of the damage received by each monster. (#2510)
- Added a setting to allow homunculi to obtain a portion of the EXP gained by their master. See `hom_bonus_exp_from_master` in `homunc.conf`. Note: in order to restore the previous behavior, the setting can be changed to `0`. (#2507, issue #2313)

### Changed

- Converted various packets (`ZC_ACK_RANKING`, `ZC_STATUS_CHANGE_ACK`, `ZC_HAT_EFFECT`) into structs. (part of #2498)
- Changed `pc_statusup()` to send the actual stat value back to the client in case of error. (part of #2498)
- Disabled the `@refresh` and `@refreshall` commands during NPC conversations, causing the character to be stuck on an invisible NPC dialog until relogging. (#2499)
- Extended `@reloadmobdb` to update the currently spawned monsters. (#2500)
- Changed the party sharing checks to avoid unnecessary SQL queries. (part of #2502)
- Extended the `@refine` command with shortcuts to refine every normal equipment (-1), every costume equipment (-2) or every shadow equipment (-3). (#2504)
- Extended the `@refine` command to list the costume and shadow equipments. (#part of #2504)
- Increased the stack limit of Turisus, Asir and Pertz to unlimited and the other runestones to 60. (#2509)
- Extended the commands `getmonsterinfo()` and `setunitdata()` / `getunitdata()` with accessors for the new `DamageTakenRate` mob DB field, using, respectively, `MOB_DMG_TAKEN_RATE` and `UDT_DAMAGE_TAKEN_RATE`. (part of #2510)
- Converted the Guild Castle database to the libconfig format, in preparation for future updates. (#2506)

### Fixed

- Sanitized the use of `input()` in all the scripts to work correctly if the minimum accepted value is changed to less than zero in the configuration. It's recommended that third party scripts get updated not to assume a positive value, since the default setting may change in the future. (#2494)
- Fixed an issue in the Sealed Shrine script, allowing to unseal multiple Baphomets under certain conditions. (#2332)
- Fixed an issue that allowed an appropriately created party to enable experience sharing even if outside the sharing range. (#2502)
- Corrected the cooldown after killing Wounded Morroc. (#2503)
- Corrected `isequipped()` and `isequippedcnt()` to correctly handle costume equipment. (#2508)

## [v2019.06.30] `June 30 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-06-05. (#2491)
- Added support for the new shortcuts packets in the Zero clients. (part of #2491)
- Added support for the Summoner class in `stylist.txt`. (part of #2357, issue #2356)
- Implemented the new `setfavoriteitemidx()` and `autofavoriteitem()` script commands. (#2427)
- Implemented the new `@reloadnpc` atcommand, to reload a single script file. (#2476)
- Implemented the new `identify()` and `identifyidx()` script commands and `@identifyall` atcommand. (#2487)

### Changed

- Suppressed unnecessary ShowWarning messages related to the `nosave`, `adjust_unit_duration` and `adjust_skill_damage` mapflags when using `@reloadscript`. (#2410, issue #2347)
- Updated the Rune Knight, Guillotine Cross and Ranger shops with missing items. (#2343)

### Fixed

- Fixed monster spawns disregarding the custom names specified. (#2496, #2491, issue #2495)
- Fixed the style range in `stylist.txt`, now starting from 1 instead of 0. (part of #2357, issue #2356)

## [v2019.06.02] `June 2 2019`

### Added

- Added Stat Reduction Potions to the Renewal item DB. (#2483)
- Added the constant `MAX_NPC_PER_MAP` to the script engine. (part of #2474)
- Added the `cap_value()` script command, to cap a value between a minimum and maximum. (#2472)
- Added the `mesclear()` script command, to clean an NPC message dialog without user interaction. (#2471)
- Added a script for simplified installation on Windows development machines. (#2222)
- Added/updated packets, encryption keys and message tables for clients up to 2019-05-30. (#2468, #2490)
- Added support for multiple hotkeys sets (two 'tabs' on the RE clients). The constant `MAX_HOTKEYS_DB` represents the maximum amount of hotkeys saved to the database. This requires a database migration. (part of #2468)
- Added the `delitemidx()` script command, to delete an item by its inventory index. (#2394)
- Added the `getguildonline()` script command, to return the amount of online guild members. (#2290)
- Added the `nostorage` and `nogstorage` mapflags, disallowing storage usage on the affected maps. The `bypass_nostorage` permission is also provided, to bypass those mapflags. (#2221)

### Changed

- Moved the questinfo data from map to npc data, allowing the use of multiple `questinfo()` blocks. (#2433, issue #2431)
- Removed code duplication from the map data cleanup functions. (part of #2433)
- Allow to read negative values from `input()`. The minimum value is still set to 0 in the default configuration, but it can be overridden globally by editing `input_min_value` or locally by specifying the `min` and `max` arguments to `input()`. (#2375)
- Extended the `getmapinfo()` command to return the total number of NPCs in a map (`MAPINFO_NPC_COUNT`). (#2474)
- Updated the pre-renewal Byorgue summon slave delay to match the official value, increased before renewal to prevent farming exploits. (#2456)
- Changed the `"all"` special value used by `killmonster()` to be lowercase and case sensitive, for consistency with other script commands. (#2380)
- Updated and simplified the Windows installation instructions. (part of #2222)
- Updated some NPC/name translations to match the official ones or the official intent. Cougar -> Kuuga Gai, Gaebolg -> Geoborg, Family -> Clan, Magic Gear -> Mado Gear (#2457)
- Updated the Mado Gear rental NPC to sell Mado Gear Box and Cooling Device. (part of #2457)
- Changed the `expandinventoryack()`, `expandinventoryresult()`, `expandinventory()` and `getinventorysize()` script commands to be lowercase, for consistency. (#2374)

### Fixed

- Fixed the `failedremovecards()` command, to only remove the carts when `type` is set to 1, as described in its documentation. (#2477, issue #2469)
- Fixed a crash when using `npcspeed()`, `npcwalkto()`, `npcstop()`, `unitwalk()`, `unitwarp()`, `unitstop()` on a floating NPC without a sprite. (#2430)
- Fixed a stats calculation regression. (#2482)
- Fixed a version check for the `ZC_PING` packet. (part of #2468)
- Fixed errors caused by missing Option DB and Option Drop Groups DB data when the map server loads the mob database in minimal mode. (#2486, related to issue #2484)

### Deprecated

- Deprecated use of `"All"` with `killmonster()`. Use `"all"` instead. (part of #2380)
- Deprecated the mixed case version of the `expandInventoryAck()`, `expandInventoryResult()`, `expandInventory()` and `getInventorySize()` script commands. Use the lowercase variants instead. (part of #2374)

## [v2019.05.05+4] `May 5 2019` `PATCH 4`

### Fixed

- Fixed a reading error in refine database caused refine chances to be incorrectly read. (#2481)

## [v2019.05.05+3] `May 5 2019` `PATCH 3`

### Fixed

- Fixed a calculation error in the ASPD (and/or other substats) when the maximum stats have values higher than default. (#2419)
- Fixed a parsing error in the HPM Hooks Generator. (#2467)

## [v2019.05.05+2] `May 5 2019` `PATCH 2`

### Fixed

- Fixed a packet generation issue that caused the Guild Storage to appear empty. (#2464, issue #2463)
- Fixed use of `ZC_SE_PC_BUY_CASHITEM_RESULT` on old packet versions that didn't support it. (#2465)

## [v2019.05.05+1] `May 5 2019` `PATCH 1`

### Fixed

- Fixed an issue in the player name packet causing names not to be sent correctly. (#2460, issue #2459)
- Fixed a null pointer error on MVP drops. (#2461)

## [v2019.05.05] `May 5 2019`

### Added

- Added `consolemes()` script function which allow the script engine to print error, warning, status, debug and info messages to the console. (part of #2440)
- Added the item combo effect for Geffenia Tomb of Water (2161) and La'cryma Stick (1646). (#2441, issue #1982)
- Added support for mobs to drop items with Random Options. See the new database file `db/option_drop_group.conf` and the new optional syntax in the drop entries of `mob_db.conf`. (#2309)
- Added a global function `F_MesItemInfo()`, to print an item name with description link, formatted for the current client version. (#2068)
- Added/updated packets, encryption keys and message tables for clients up to 2019-05-02. (#2432)
- Added a new function `clif_selforarea()` to send packets to self, falling back to area when no target is specified. (part of #2432)
- Added script commands `getunittitle()` and `setunittitle()`, and the related information in the `unit_data` structure. (part of #2432)
- Added support for players to automatically reject party invites through the party options. (part of #2432)
- Added an option to automatically drop the connection on the server side when a character is kicked. See `drop_connection_on_quit` in `client.conf` (note: the previous behavior was equivalent to `true`). (part of #2432)
- Added an option to force character save when the party options are changed. See `save_settings` in `map-server.conf`. (part of #2432)
- Added the script command `closeroulette()` and the related packet `ZC_ACK_CLOSE_ROULETTE` to close the roulette window. (part of #2432)
- Added a missing `CSBR_BUSY` value to `enum CASH_SHOP_BUY_RESULT`. (part of #2432)
- Added support for the refinery UI. See the new `refine_db.conf` changes and the settings `enable_refinery_ui` and `replace_refine_npcs` in `features.conf` to toggle between the new UI and the previous scripted refiner. (#2446)
- Added a new `SkillInfo` flag `HiddenTrap`, to make certain traps invisible, according to the `trap_options` configuration flag. The default settings have changed to match Renewal. Pre-renewal users might want to review `trap_options` and the now superseded `traps_setting`. (#2232, issues #1927 and #1928)

### Changed

- Extended `@dropall` to accept an optional argument for item type (#2439).
- Updated copyright header in the configuration files for year 2019. (part of #2452)
- Extended the `getinventorylist()` script command to return an array `@inventorylist_favorite`, set to true when the item is located in the favorite tab. (#2426)
- Split the function `clif_blname_ack()` into bl type-specific functions. (part of #2432)
- Extended `getunitdata()` and `setunitdata()` with support for the group ID (`UDT_GROUP`), and added the related information in the `unit_data` structure. (part of #2432)
- Moved the `UDT_*` constants from `constants.conf` to `script.c`. (part of #2432)
- Extended the guild expulsion information to include the character ID for supported client versions. This includes a database migration. (part of #2432)
- Disabled packet validation in `socket_datasync()`. (part of #2432)
- Moved the refine database and refine related functions to a new `refine.c` file. A public and private interface is provided, with public database accessors `refine->get_bonus()` and `refine->get_randombonus_max()`. (part of #2446)
- Changed several battle calculation limits to be configurable through `battle/limits.conf` and no longer hardcoded. Several `status_data` fields and battle functions now use `int` instead of `short` to accommodate this change. (#2419)
- Changed the `unitwarp()` script command to allow NPCs to be relocated to non-walkable cells (like `movenpc()`). (#2453)

### Fixed

- Corrected MSVC version naming in console (#2450).
- Corrected an example using a sprite number instead of a constant in `README.md`. (#2449)
- Fixed an issue in a monster death label callback in `npc/custom/events/mushroom_event.txt` when the monster is killed without an attached player. (#2442, issue #1955)
- Fixed an issue where when a chat room handler leaves, the following leader won't be checked for `cell_chknochat` and will bypass it. (#2443, issue #1569)
- Corrected the documentation for `pincode.enabled` in the char-server configuration. (part of #2452)
- Fixed an incorrectly displayed ITEMLINK entry in the OldGlastHeim script. (part of #2068)
- Fixed a packet size underflow in the storage packet for certain client versions. (#2424)
- Fixed an issue that caused named/brewed/forged items to be saved to database with the wrong character ID. Database migrations are provided, to update the existing data. (#2425, issue #2409)
- Fixed a truncated title in the inventory window. (part of #2432)
- Fixed a possible overflow in the guild member login field (only supporting timestamps until 2036-12-31). (part of #2432)
- Fixed a compile error with old packet versions. (part of #2432, issue #2438)
- Fixed a potential exploit related to the vending skill, by adding stricter validation on the vending status flags. (part of #2432)
- Fixed a regression, restoring the ability for HPM Hooks to hook into private interfaces, through the new macros `addHookPrePriv()` and `addHookPostPriv()`. (#2447)
- Fixed a zeny loss caused by the inter-server deleting zeny from messages when the user only requests to take items. (#2455)
- Fixed a compatibility issue with Perl 5.26 in the item converter script. (#2444)
- Fixed various gitlab-ci build failures, by removing some no longer supported debian versions and packages. The gcc-4.6, gcc-4.7 and gcc-5 builds have been removed. (#2458)

### Deprecated

- Deprecated the script command `debugmes()`, superseded by `consolemes()`. (part of #2440)

### Removed

- Removed the superseded `traps_setting` configuration flag, replaced by `trap_options`. (part of #2232)

## [v2019.04.07+1] `April 7 2019` `PATCH 1`

### Fixed

- Fixed some race conditions and missing validation in the item and zeny handling code for RODEX. (#2437)
- Fixed pet eggs getting lost for pets that were hatched before the pet evolution system. Pets are now automatically migrated to the new system that keeps eggs in the user's inventory. (#2428)

## [v2019.04.07] `April 7 2019`

### Added

- Added a configuration flag to disable the achievement system even then it's supported by the current client version. See `features/enable_achievement_system` in `battle/feature.conf`. (#2170)
- Added the `PETINFO_*` constants, to be used with `getpetinfo()`. (part of #2398)
- Added/updated packets, encryption keys and message tables for clients up to 2019-04-03. (#2406)
- Added support for the `ZC_PING` and `CZ_PING` packets. (part of #2406)
- Added support for the `CZ_COOLDOWN_RESET` packet and the related `/resetcooltime` client command. (part of #2406)
- Added support for the "allow call" player configuration option. (part of #2406)
- Added support to open the macro UI in the client. (part of #2406)
- Added support for the `CZ_STYLE_CLOSE` packet. (part of #2406)
- Exposed the `MAX_ITEM_ID` constant to the script engine. (#2367)

### Changed

- Extended `getinventorylist()` to return the item's inventory index in the `@inventorylist_idx[]` array. (#2401)
- Extended `gettimestr()` to accept an optional argument providing a UNIX timestamp, as returned for example by `getcalendartime()`. (#2388)
- Extended `getpetinfo()` to include information previously returned by `petstat()`. (#2398)
- Renamed `clif_charnameack()` to the more accurate `clif_blname_ack()`. (part of #2406)
- Extended `showscript()` to accept an optional argument to specify the send target. (#2415)
- Updated `README.md` to include links to the sections. (#2354)

### Fixed

- Fixed a compilation error in the sample plugin, on systems where `rand()` is not available. (#2403)
- Fixed a visual glitch caused by `setunitdata(UDT_LEVEL, ...)` not updating the monster level, when `show_mob_info` is configured to display it. (#2408)
- Fixed the `features/enable_pet_autofeed` configuration value that was ignored and `features/enable_homunculus_autofeed` was used instead. (#2417)
- Fixed an unescaped string in the db2sql generated data for the mob skill database. (#2416, related to #2407)
- Fixed some possible null pointer warnings reported by gcc. (part of #2406)
- Fixed a client crash with `@bodystyle` and `Job_Super_Novice_E`. (part of #2402, related to #2383)
- Fixed a client crash when using `@jobchange` to a class that doesn't support alternate body styles while a body style is applied. (#2402)

### Deprecated

- Deprecated the command `petstat()`, superseded by `getpetinfo()`. (part of #2398)
- Deprecated the `PET_*` constants, used by the `petstat()` command. (part of #2398)

## [v2019.03.10] `March 10 2019`

### Added

- Added `MOB_CLONE_START` and `MOB_CLONE_END` to the constants available to the script engine. (#2390)
- Added crash dumps to the Travis-CI output in case one of the servers crashes during the tests. (#2385)
- Added gcc-7 and gcc-8 builds to Travis-CI. (part of #2385)
- Added a configuration setting `magicrod_type` (`skill.conf`) to restore the old eAthena behavior for the Magic Rod skill. (#2034)
- Added some missing information to the documentation for `bg_create_team()` and `waitingroom2bg()`, to remove the automatic respawn. (#2381)
- Added the `MERCINFO_*` constants to the script engine, for `getmercinfo()`. (#2397)
- Added support for `MERCINFO_GID` to `getmercinfo()`. (#2397)
- Added the script commands `mobattached()` and `killmonstergid()`. (#2396)
- Added/updated packets, encryption keys and message tables for clients up to 2019-03-06. (#2377)
- Added a missing value into `enum BATTLEGROUNDS_QUEUE_ACK`. (part of #2377)

### Changed

- Changed the Windows SDK from version 10.0.15063.0 into 10.0.17763.0 for Visual Studio 2017. (#2368)
- Changed the return value of `getunitdata()` from `0` to `-1` in case the requested value couldn't be retrieved, in order to differentiate between a zero and an invalid value. Note: this may break existing scripts. (#2392)
- Updated the `getunitdata()` and `setunitdata()` documentation to clarify that the command only handles integer values. (#2391)
- Added the function `connect_client()` into the socket interface. (#2378)
- Moved the variable `SOCKET_CONF_FILENAME` to the socket interface. (#2378)
- Moved local variables from `atcommand.c` to the interface. (#2378)
- Moved defines from `map.h` to `mapdefines.h` to remove an inclusion loop. (#2378)
- Moved the stylist-related functions to their own interface. (#2400)

### Fixed

- Fixed some typos in the item bonus documentation. (#2376)
- Fixed a typo in the `setpcblock()` documentation. (c9bab97108)
- Fixed a missing return value in `F_GetTradeRestriction()`. (#2360)
- Fixed the return value of `bg_create_team()` to be -1 in case of failure, as described in the documentation. (part of #2381)
- Fixed the date field in the member list packet. (part of #2377)
- Fixed the documentation for `needed_status_point()`, not supporting the `char_id` argument. (#2399)

### Deprecated

- Deprecated the `UDT_MAPIDXY` constant. Its use in `setunitdata()` is replaced by `unitwarp()` and its use in `getunitdata()` is replaced by `getmapxy()`. (#2391)
- Deprecated the `UDT_WALKTOXY` constant. Its use in `setunitdata()` is replaced by `unitwalk()`. (#2391)

## [v2019.02.10+1] `February 10 2019` `PATCH 1`

### Fixed

- Fixed a buffer size issue in inter server packets (#2370, issue #2369)

## [v2019.02.10] `February 10 2019`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2019-01-09. (#2339)
- Added support for the barter type shops. See `sellitem()`, `NST_BARTER` and the demo scripts in [doc/sample/npc_trader_sample.txt](doc/sample/npc_trader_sample.txt) and [npc/custom/bartershop.txt](npc/custom/bartershop.txt). (part of #2339)
- Added the `countnameditem()` script command. (#2307)
- Added/updated packets, encryption keys and message tables for clients up to 2019-01-30. (#2353)

### Changed

- Improved the response codes and error messages related to the login/char server authentication. (#2151, issue #737)
- Changed the character creation to use `FIXED_INVENTORY_SIZE` as default inventory size instead of relying on the SQL table default value. (part of #2353)
- Changed the type of several variables from `short` to `int`. (#2364)

### Fixed

- Fixed a bug that caused the custom disguise event to run indefinitely. (#2351)
- Fixed issues (item db loading, item search by name) for item IDs higher than 65535. (#2337)
- Fixed an issue while sending the last page of `HC_ACK_CHARINFO_PER_PAGE`. (part of #2339)
- Fixed the minimum duration of Voice of Siren. (#1631)
- Fixed the Sura Job Change Quest getting stuck after the first attempt. (#1656, issue #1655)
- Added support for recent MySQL versions that don't define the `my_bool` type. (#2365, issue #2363)

## [v2018.12.16+1] `December 16 2018` `PATCH 1`

### Fixed

- Added a missing check in `run_script_main()`. (#2362)

## [v2018.12.16] `December 16 2018`

### Added

- Added/updated packets, encryption keys and message tables for clients up to 2018-12-12. (#2324)
- Added support for the `AC_LOGIN_OTP` packets. (part of #2324)
- Added script command `enchantitem()` and related packet `ZC_ENCHANT_EQUIPMENT`. (part of #2324)
- Added script command `servicemessage()` and related packet `ZC_SERVICE_MESSAGE_COLOR`. (part of #2324)
- Split packets struct definitions out from lclif into separate files for AC and CA packets. (part of #2324)
- Added struct definitions header for HC packets. (part of #2324)
- Added support for expandable inventory size, including database persistence, inventory expansion packets, the script commands `expandInventoryAck()`, `expandInventoryResult()`, `expandInventory()`, `getInventorySize()`, the item `Inventory_Extension_Coupon` and the script `npc/other/inventory_expansion.txt`. (part of #2324)
- Added support for the client commands `/viewpointvalue` and `/setcamera` (like `@camerainfo`). The atcommand aliases `@setcamera` and `@viewpointvalue` are also provided. (part of #2324)
- Added `needed_status_point()` script function and the global function `F_CashReduceStat()`, for permanent status point reduction. (#2246)
- Added an option to include script interaction into the idle criteria, disabled by default. See `idletime_criteria` in `conf/map/battle/player.conf` and `BCIDLE_SCRIPT`. (#2244)

### Changed

- Extended support for 32 bit item IDs to the Zero and Main clients that support them. (part of #2324)
- Renamed packet identifier macros from `PACKET_ID_*` to `HEADER_*`. (part of #2324)
- Renamed packet struct definitions from `packet_*` to `PACKET_*`. (part of #2324)
- Increased `MAX_PACKET_LOGIN_DB` to `0x0AD0` to match the existing packets. (part of #2324)
- Added buffer size validation for `char_mmo_char_tobuf`. (part of #2324)
- Updated `npc/woe-se` files to modern standards, including `mes()` and `mesf()`. (#2261)
- Changed HPMDataCheck to exclude packetver-specific packet structs that would cause compile-time errors. (794ce3c89497a17bd64eacbc82bce22f07f00acb)

### Fixed

- Fixed `getunits()` returning the wrong value if no area size is passed. (41d370cd3308be48b4ce00a50ee46515742978b0, issue #2330)
- Fixed support for old (2010 and older) clients in packet `ZC_PROPERTY_HOMUN`. (part of #2324)
- Fixed Gaia Sword not granting any bonus drops. This reworks the way `s_add_drop` differentiates between items and groups and the parameters passed to `pc_bonus_item_drop()`. Custom code may need to be updated to match. (#2327)
- Fixed a 'Gungslinger' typo in `item_db2`. (#2335)
- Fixed delay-consumed items missing consumption after using Abracadabra/Improvised Song (#2298, issue #1169)

### Removed

- Removed unnecessary typedef from `clr_type`. The type is now only available as `enum clr_type`. (part of #2324)

## [v2018.11.18+1] `November 18 2018` `PATCH 1`

### Fixed

- Fixed a regression in #1215 that prevented characters from being resurrected. (c34871cb3f65412db663a4793df6f055663e16fa)

## [v2018.11.18] `November 18 2018`

### Added

- Added an option to prevent character renames when in a guild or a party. This is the official behavior, but disabled by default since it's unnecessary in Hercules. To enable, `char_configuration/use_aegis_rename` can be set to `true` in `char-server.conf`. (#1866, issue #1805)
- Added the script command `data_to_string()`, to return the string representation of the given data (counterpart to `getd()`). (#2304)
- Added/updated packets, encryption keys and message tables for clients up to 2018-11-14. (#2310, #2321)
- Added a configuration option for the maximum delay allowed by `@channel setopt MessageDelay` command, see `chsys/channel_opt_msg_delay` in `channels.conf`. (#2287)
- Added a configuration option for more accurate emulation of the HP display on dead characters. This setting is enabled by default, but the old, less confusing, behavior is available by setting `display_fake_hp_when_dead` to `false` in `client.conf`. (#1215, issues #889 and #840)
- Added `common/packets`, to provide a common interface to the packet DB, shared by all three servers. (#2321)
- Added proof of concept of compile time validation of packet struct definition against the packet lengths DB (currently only for `ZC_ITEM_PREVIEW`). (part of #2321)
- Added runtime client-server packet length validation in `RFIFOSKIP()` and `WFIFOSET()`. An unchecked `WFIFOSET2()` alternative is still provided, for packets that lack a db entry. (part of #2321)
- Added runtime validation for the size of `WIFOHEAD()` buffer allocations. (part of #2321)

### Changed

- Made `getunits()` stop unnecessarily iterating when the maximum specified amount of units is reached. (#2105)
- Updated the item bonus documentation, converted to the Markdown format in [doc/item_bonus.md](doc/item_bonus.md). (#2259)
- Improved the channel delay message to include the remaining time before a new message can be sent. (#2286)
- Removed the unused `type` argument from `getnpcid()`. All the shipped scripts have been updated. (#2289)
- Improved the `charlog` to include the stats, class, hair color and style whenever available. This affects the character selection and rename log entries, that had most fields zeroed before. (#2320)
- Updated the quest variables documentation, converted to the Markdown format in [doc/quest_variables.md](doc/quest_variables.md). (#2256)
- Updated the monster modes documentation, converted to the Markdown format in [doc/mob_db_mode_list.md](doc/mob_db_mode_list.md). (#2255)
- Documented `flag` of the `status->heal()` function through the `enum status_heal_flag`. (part of #1215)
- Added packet versions for all server types to the socket datasync validation. (part of #2321)

### Fixed

- Fixed packet `ZC_FORMATSTRING_MSG_COLOR` for clients older than 20160406. (part of #2310)
- Fixed the output formatting in the unhandled packet reporter. (part of #2310)
- Improved grammar in the `CONTRIBUTING.md` document. (#2303)
- Fixed some logically dead code in `status.c`. (#2265)
- Fixed some alerts reported by LGTM for the python scripts. (#2268)
- Fixed some typos in the `README.md` document. (#2283)
- Fixed a crash and/or mapflag inconsistency when reloading scripts, especially in PK servers. Map zones are now removed correctly during a reload. (#2247, issue #2242)
- Fixed an overflow in the defense calculation when fighting more than 22 enemies. (#1233, issue #1201)
- Fixed the gitlab-ci builds with clang-4.0, which was removed from Debian testing/unstable. (#2323)
- Fixed an issue that caused a character leaving their guild to still receive some `#ally` messages from certain allied guilds. (#2322)
- Fixed an issue that caused a character joining a guild not to join its `#ally` channel group. (part of #2322)
- Fixed a duplicated line in the `@channel` help output. (part of #2322)
- Fixed some code that assumed a character to be already on a map and attempt to leave an invalid `#map` channel when logging in. (part of #2322)

### Removed

- Removed support for the `MINICORE` libraries, which were unused but needlessly built since the new mapcache system was implemented in #1552. (#2319)
- Removed the unused `src/tool` directory. (part of #2319)

## [v2018.10.21] `October 21 2018`

### Added

- Unknown packets are now printed to the console, when the option to dump them to disk (`DUMP_UNKNOWN_PACKET`) is disabled. (part of #2226)
- Added/updated packets, encryption keys and message tables for clients up to 2018-10-02 (#2226)
- Implemented the script command `removespecialeffect()`. (part of #2226)
- Implemented the atcommand `@camerainfo` and the script commands `camerainfo()` and `changecamera()`. (part of #2226)
- Added options to enforce a minimum buy/sell price for NPC items, defaulting to the official values of 1 and 0, respectively. (#2208, issue #2177)
- Added documentation for the script command `achievement_progress()`. (#2249)
- Added/updated packets, encryption keys and message tables for clients up to 2018-10-17 (#2278)
- Implemented script command `itempreview()`. (part of #2278)
- Added placeholders for 493 items from kRO. (#2280)

### Changed

- Converted the effect list documentation to Markdown (`effect_list.md`). (#2230, issue #2215)
- Improved the GitHub pull request and issue templates. (#2237)
- Allowed `getd()` to work with constants and params (although this is a discouraged practice). (#2240)
- Converted the permissions documentation to Markdown (`permissions.md`). (#2253)
- Extended `getiteminfo()` and `setitmeinfo()` with the trade restriction information (`ITEMINFO_TRADE`). The `ITR_*` constants are made available to the script engine, and the global function `F_GetTradeRestriction()` has been provided, for convenience. (#2172)
- Converted the global configuration documentation to Markdown (`global_configuration.md`). (#2229, issue #2216)
- Removed duplicated code from the `showevent()` icon validation. (#2250)
- Extended `setquestinfo()` with a mercenary class option (`QINFO_MERCENARY_CLASS`). (#2251)
- Removed duplicated/diverging code from the `@bodystyle` command. (#2264)
- Removed duplicated code for `prompt()`, now sharing the same function as `select()`. The new constants `MAX_MENU_OPTIONS` and `MAX_MENU_LENGTH` have been provided. (#2279)

### Fixed

- Fixed an assertion failure in the zeny achievement, when the amount of zeny is zero. (#2227)
- Fixed issues when setting a char or account variable of another player. (#2238, issue #2212)
- Fixed a failed assertion when a character is invited to and joins a guild. (#2235, issue #2210)
- Fixed a failed assertion when `sc_end()` is called for `SC_BERSERK`. (#2239, issue #1388)
- Fixed display issues with homunculus in old clients. (#2252)
- Fixed damage reflection (through Reflect Shield, High Orc Card, etc) to work on traps. The old, unofficial, behavior can be restored through the battle configuration flag `trap_reflect`. (#2182, issue #1926)
- Fixed Blast Mine and Claymore Trap damage, that wasn't getting split by the number of targets. (#2182, issue #1900)
- Fixed an assertion failure when refining an item fails. (#2234, issue #2217)
- Fixed the gitlab-ci builds with clang-5.0, which was removed from Debian testing/unstable. (58afe047cd)

## [v2018.09.23] `September 23 2018`

### Added

- Added LGTM.com code quality badges to the README. (#2202)
- Added maps and constants related to episode 17.1 to the map database and constants list. (#2203)
- Added/updated packets, encryption keys and message tables for clients up to 2018-09-19 (#2199)
- Added `-Wvla` to the compiler flags, to prevent accidental usage of variable length arrays. (#2199)
- Implemented `PACKET_CZ_MEMORIALDUNGEON_COMMAND`. (#2195)
- Extended `setquestinfo()` with support for item amount ranges. (#2218)
- Implemented the Mob Skill DB generator into the `db2sql` plugin. (#2149)

### Changed

- Changed the Travis build to use the maximum available PACKETVER, so that the recent code is tested. (#2199)
- Added a shorthand to call `mes()` without arguments to mean `mes("")`. (#2193)

### Fixed

- Added a missing `IF NOT EXISTS` clause in the `char_achievements` table creation query. (e71e41b36b)
- Fixed an issue in packet `ZC_INVENTIRY_MOVE_FAILED` (#2199, issue #2213)
- Fixed a validation error in `setquestinfo()`. (#2218)
- Fixed an error in the achievement system, when killing a cloned mob. (#2204, issue #2201)
- Fixed a truncation issue in the card columns of the database. (#2205, issue #2187)
- Fixed a crash when a character is removed from the `char` table but not from the `guild_member`. (#2209, issue #2173)

## [v2018.08.26+1] `August 29 2018`

### Fixed

- Fixed a bug which prevented the script engine from updating params. (#2200, e554c1c9c)

## [v2018.08.26] `August 26 2018`

### Added

- Added the `@setzone` command, which allows changing the zone of the current map on the fly. (#2162)
- Added/updated packets, encryption keys, and message tables for clients up to 2018-08-08. (#2176)
- Added support for `sak` and `ad` clients. (#2185)
- Made the server display the client type (`main`, `RE`, `zero`, `sak`, `ad`) on startup. (#2185)
- Added const-correct wrappers for `strchr()`, `strrchr()`, `strstr()`, when building with C11-compatible compilers. (#2189)

### Changed

- Made the map zone db also reload when `@reloadscript` is used. (#2162)
- Updated the `is_function` script command to support built-in commands, local functions, and local subroutines. (#2154)
- Updated the `debugmes` script command to support printf format strings. (#2146)
- Changed the language specification to `C11` in autoconf builds. (#2189)

### Deprecated

- `script->add_str()` should no longer be used by plugins to inject variables, as `script->add_variable()` supersedes it. (#2164)

### Fixed

- Fixed the `@mapflag` command not working with the `town` mapflag. (#2133, #2162)
- Fixed some issues with the banking and roulette packets. (#2190)
- Fixed the compiler throwing a warning when `MAGIC_REFLECTION_TYPE` is set to `0`. (#1920, 2175)
- Fixed some vague item bonus documentation for `bHealPower` and `bHealPower2`. (#2125)
- Fixed some issues in the GitLab CI CentOS builds that prevented the pipelines from succeeding. (#2191)
- Reverted [v2018.07.29+1] and fixed the underlying issue, which caused some script variables to end up with an incorrect type. (#2164)
- Fixed some constants that had an invalid type, which caused undefined behaviour with `getdatatype`. (#1801, #2164)
- Fixed zeny spending achievements recording the zeny amount in negative values. (#2171)

## [v2018.07.29+2] `August 1 2018` `PATCH 2`

### Fixed

- Fixed a wrong preprocessor directive that prevented some clients from connecting. (#2165, #2166)

## [v2018.07.29+1] `Jul 30 2018` `PATCH 1`

### Fixed

- Added a temporary patch for `getd()` when variable types are `C_NOP`. (#2163)

## [v2018.07.29] `Jul 29 2018`

### Added

- Added support for the Achievements system and the Titles system. (#2067, #2157, #2161)
- Added a stylist db option to restrict some hairstyles for the Doram race. (#2155)
- Added/updated packets, encryption keys, and message tables for clients up to 2018-07-18. (#2139, #2126, #2132)
- Added support for the overweight percentage packet for clients older than 2017-10-25. (#2139)
- Added support for the chat commands `/changedress` and `/nocosplay`. (#2139)
- Added support for the party member death notification packet for clients older than 2017-05-02. (#2139)
- Added support for body style to the stylist. (#2138)
- Added a `dead_area_size` battle config option to configure the area to which player death packets are sent. (#2088)
- Added project files for Microsoft Visual Studio 2017 (#2131)

### Changed

- Updated the warp list packet for clients older than 2017-04-19. (#2139)
- Simplified the `questinfo()` script command and added `setquestinfo()`. This may break some scripts, but is easily fixable with a regular expression search/replace. (#2107)
- The constants database will now also be reloaded when calling `@reloadscript`. (#2130)
- The maximum item ID for the item database is now `65535` for clients older than 2018-07-04, and `131072` for newer clients. It may be increased up to a maximum of `2147483648` in the future, as needed. (#2134)
- Added the missing `pos` parameter to `skill_init_unit_layout_unknown()`. (#2143)

### Deprecated

- Microsoft Visual Studio 2012 is no longer officially supported. (#2131)

### Removed

- Removed the `EF_ANGEL3` effect from the novice academy, as it is now triggered by the Achievements system. (#2156)

### Fixed

- Fixed a bug which made the `Venom Splasher` skill consume gemstones twice. (#2148)
- Fixed a bug that could make skill cooldowns never expire, rendering the skill unusable. (#2147)
- Fixed the maximum array size being higher than the maximum integer (uint32 vs int32), which could cause integer overflows in scripts. (#2093)
- Fixed a wrongly named constant, which made `Sea-Otter Card` not increase the `Sushi` heal rate. (#2117)
- Fixed misc bugs related to pet evolution. (#2136, #2153)
- Fixed a bug that sent an attendance system message without the attendance ui being opened. (#2129)
- Corrected several outdated documentation references to `db/constants.conf`, to point to `doc/constants.md`. (#2090)
- Fixed an issue in the script command `getd()` that wouldn't properly initialize the type of newly created variables through `set(getd(...), ...)` (#2158)
- Fixed a missing memory initialization in several dummy `struct block_list` entries created as local variables. (#2159)

## [v2018.07.01+1] `Jul 1 2018` `PATCH 1`

### Fixed

- Fixed a regression that made it impossible to invite guild members. (#2124, issue #2122)

## [v2018.07.01] `Jul 1 2018`

### Added

- Added/updated packets and message tables for clients from 2018-05-30 to 2018-06-12. (#2064)
- Added/updated a pair of enums (`cz_ui_types`, `zc_ui_types`) for the values used by packets 0xa68 and 0x0ae2, fixed compatibility with older clients. (part of #2064)
- Added the possibility for a plugin to abort the skill currently being cast by returning true from `skill_check_condition_castend_unknown()`. (#2076)
- Implemented Pet Evolution. This adds a new `Evolve` field to the Pet DB, and a generator script is provided, to automatically create entries from the pet evolution lua. (#2063)
- Implemented Pet Autofeeding. This adds a new `AutoFeed` field to the Pet DB, and can be completely disabled through the `enabe_pet_autofeed` flag in `feature.conf`. (#2063)
- Added the script command `setparam()`, the setter counterpart of `readparam()`, accepting an optional account id argument. (#2081)
- Updated maps database/mapcache with new maps (part of #2098)
- Added/updated packets and message tables for clients from 2018-06-20 to 2018-06-27. (#2095)
- Added new map/mapserver-change packets for the airship system. (part of #2095)
- Added new (unused) 'dns host' field in `char_send_map_info()`, compatible with clients newer than 2017-03-29. (part of #2095)
- Added an option to hide names in the script commands `unittalk()` and `npctalk()` (#1831, formerly #1571, issue #1523)

### Changed

- Updated README with more info about the development dependencies. (b57232ac29)
- Updated `instance_create()` when trying to create an already existing instance, to match the official behavior. (#1924, issue #1651)
- Removed the `RTLD_DEEPBIND` flag from the plugin-loading functions, for compatibility with asan in gcc-8. (#2079)
- Standardized the function call syntax in the script command documentation. (#2084)
- Changed the way pet eggs are handles in the inventory (they don't get deleted when hatched), for compatibility with the pet evolution system. (part of #2063)
- Extended the script command `readparam()` with the ability to receive an account id as optional argument, as an alternative to the character name. (#part of 2081)
- Updated the Private Airship map list to match the main kRO servers, and enabled the functionality on the main packetvers. (#2098)
- Updated pin code status packets for the 2018 clients. (part of #2095)
- Updated the authentication error packets in the map server to use the most recent version for the current packetver. (part of #2095)
- Updated the roulette packets for the 2018 clients. (part of #2095)
- Updated GitLab-CI builds to include more recent compilers and platforms: clang-5.0, clang-6.0, clang-7, gcc-7, gcc-8 ubuntu 18.04, MariaDB 10.1 are now tested. (part of #2111)
- Updated GitLab-CI builds to include builds with a recent Zero packetver, to ensure that recent code is compiled/tested. (part of #2111)
- Split the function `clif_disp_overhead` into two and converted its packet handling into the struct format. (part of #1831)
- Cleaned up the mapif-related code, splitting `mapif` packet processing from `inter` logic and moving the `mapif` functions to `mapif.c`. (#2108)
- Changed all the functions (where possible) to have static linking, in order to prevent incorrect symbols to be used by plugins, as a safer alternative to `RTLD_DEEPBIND`. Plugin authors are still advised to avoid naming their local symbols with the same name as non-static symbols exported by the code. (#2112)
- Prevented compilation of the non-memmgr memory management function wrappers when the memory manager is enabled. (part of #2112)

### Fixed

- Fixed a crash when entries from the `job_db` are removed. (#2071, issue #2070)
- Fixed `getunits()` to always return a value, even in case of error. (d2c0e453fc)
- Fixed an incorrect response message in the stylist shop. (#2066, issue #2065)
- Fixed an issue in the `clif_parse_OpenVending()` processing when the item list is empty. (#2072)
- Fixed various typos in code documentation/comments. (#2069)
- Fixed a field size in the character creation packet. (part of #2064)
- Added some missing fields in the `AC_ACCEPT_LOGIN` packet structure. (part of #2064)
- Fixed compilation with packetvers older than 20090805. (part of #2064)
- Fixed the `rodex_sendmail_acc()` command to correctly use the `account_id` field as stated in the documentation. (#2075, issue #2024)
- Fixed the shutdown callback calls, that weren't getting called any longer since core.c was interfaced. (#2106)
- Fixed a parsing error when the pre-increment/pre-decrement operator is used in a conditional's body without braces. (#2077, issues #705, #912, #1553, #1710)
- Fixed `SC_NOEQUIPWEAPON`/`RG_STRIPWEAPON` (Renewal only) and `SC_INCATKRATE`/`NPC_POWERUP` whose ATK increment/reduction were ineffective on monsters. (#2097)
- Fixed an error when a player's PIN code is set for the first time. (#2100, issue #2046)
- Fixed the searchstore packet for compatibility with item options. (part of #2095)
- Fixed GitLab-CI build failures caused by MySQL client versions incompatible with the updated docker images. (#2111)
- Fixed the novending map/cell flag that would cause players to get stuck. (#2091, issue #662)
- Fixed the documentation for the `queueopt()` script command. (#2086)
- Fixed documentation comments related to the `exp_group_db` (#2114, #2115)
- Fixed an issue in the travis builds when the console error output is too long. (part of #2112)

## [v2018.06.03] `Jun 3 2018`

### Added

- Added/updated packets support for clients from 2018-05-09 to 2018-05-23. (#2043)
- Added client/version-specific `enum clif_messages` values for msgstringtable message IDs. All the related functions have been updated. (#2038)
- Added the script commands `setpcblock()` and `checkpcblock()`, to prevent various character actions - see the script command docs for details. (#842)
- Implemented the Stylist UI, available in clients starting from 2015. Configurable in `stylist_db.conf`, accessible to scripts through `openstylist()`. (#2004)

### Changed

- Extended the script command `getunits()` with support to look up units globally, making the map argument optional. (#1851)
- Updated copyright headers to year 2018. (#2054)
- Converted `exp.txt` (now `exp_group_db.conf`) to the libconfig format, now better integrated with `job_db.conf`. (#2036, originally #1944)

### Fixed

- Fixed an issue in the mob skill db parser that limited the mob skills to a maximum of 5 (#2042, issue #2044)
- Fixed some incorrect msgstringtable IDs. (part of #2038)
- Fixed inheritance in the mob DB, no longer overwriting the Range field with a default value. (#2055)
- Fixed the skill element getter for levels above `MAX_SKILL_LEVEL`. (#2059)
- Fixed interaction between the `pvp_nocalcrank` mapflag and the script/atcommands to toggle PvP. (#2057, issue #2056)

### Deprecated

- While not officially deprecated yet, use of `maprespawnguildid()` and `playbgmall()` has been superseded by `getunits()`. (part of #1851)
- Deprecated the `pcblockmove()` script command. Use the more flexible `setpcblock()` instead. (part pf #842)

## [v2018.05.06] `May 6 2018`

### Added

- Added a configurable PIN code blacklist, to prevent use of certain codes. (#2007 and #2029, issue #769)
- Added/updated packets support for clients from 2018-04-11 to 2018-05-02. (#2021, #2030)
- Implemented option to allow guild skill cooldowns to continue when the leader is logged out. Enabled by default and controlled by the `guild_skill_relog_delay` flag in guild.conf. (#2005, issue #1774)
- Implemented the Private Airship system, currently using the list of maps from the Zero server. (#1998)
- Added the constants `DEFAULT_MOB_JNAME` and `DEFAULT_MOB_NAME` (source only) to replace hardcoded use of `"--ja--"` and `"--en--"` respectively. (part of #2027)

### Changed

- Replaced custom messages related to the PIN code system with the official ones. (part of #2007)
- Updated the minimum client version that enables certain features: new drop packet now in `PACKETVER >= 20180418`, attendance system now in `PACKETVER_ZERO_NUM >= 20180411`. (#2020)
- Introduced a friendly error message when the `delwall()` script command fails due to a non-existent wall. (#2017)
- Refactored some code to move `MAPID_*` related code into separate functions. (#2022)
- Changed the plugins Makefile to honor the `$MYPLUGIN` variable passed through the environment, to make it easier to compile specific plugins without editing files. (#2025)
- Converted the Mob Skill DB to the libconfig format. A converter script (`mobskilldbconverter.py`) has been provided for convenience. (#2019)

### Fixed

- Fixed interaction between Curse and Blessing. When under Curse or Stone Curse, Blessing will only remove the negative statuses and will need to be cast again to obtain the buff. (#1706, issue #680)
- Added support for `time_t` as return type in the HPMHookGen. (bb0e228bd29dd689ca76f64578de8759415a763b)
- Fixed some possible buffer overflows. (#2028)
- Fixed the return value of `BUILDIN(getunitdata)`. (d6785d389cbee4f34078f6762626ca61b2d6cc25)
- Improved support for clients version 2018-02-07 and Zero 2018-01-31. (part of #2030)
- Fixed the clan names in some clan-related NPC dialogs. (#2032)
- Fixed the display name of monster summoned through the `SA_SUMMONMONSTER` skill. (#2027)

### Removed

- Removed all the code related to the anonymous-stat-reporting system. (#2023)

## [v2018.04.08] `April 8 2018`

### Added

- Added/updated packets support for clients from 2018-03-14 to 2018-04-04. (#1994 and #2014)
- Introduced macros `PACKETVER_RE_NUM`, `PACKETVER_ZERO_NUM` and `PACKETVER_MAIN_NUM` to simplify client type-specific version checks.
  These macros are defined to `PACKETVER` only if, respectively, `PACKETVER_RE`, `PACKETVER_ZERO` or neither are defined. (part of #1994)
- Implemented Hat Effects, available in clients starting from 2015-04-22. (#1965)
  - The `hateffect()` script command has been implemented.
  - The related constants (with prefix `HAT_EF_*`) have been added and made available to the script engine.
- Added the 2015 variant of the quest-related packets. (#1111)
- Added login date information for guild members, on clients starting from 2016-10-26. The message format can be customized on the client side, by editing line 3012 of msgstringtable.txt. (#1986)
- Added support for the `ZC_FORMATSTRING_MSG` and `ZC_MSG_COLOR` packets, handling msgstringtable messages. (#2012)
- Added a setting (`storage_use_item` in `items.conf`) to control the use of items (usable/consumable/boxes) when the storage is open. (#1868, issue #1806)
- Implemented the Attendance System, requiring client 2018-03-07bRagexeRE or newer. Configuration is available in `feature.conf` and `db/attendance_db.conf`. (#1990)
- Added a configurable delay to the MVP Tombstone. The delay can be configured through the `mvp_tomb_spawn_delay` setting in `monster.conf`. (#2001, issue #1980)

### Changed

- Updated the functions handling quest-related packets to use the struct-based form. (part of #1111)
- Converted the Pet DB to the libconfig format. A converter script (`petdbconverter.py`) has been provided for convenience. (#2000)
- The `noteleport` mapflag has been added to the Archer Village (`pay_arche`), to match official servers. (part of #2006)
- The `script->sprintf()` function has been renamed to `script->sprintf_helper()`. (part of #2009)

### Fixed

- Removed a duplicated line in the login server VS project that would prevent Visual Studio from loading it. (#1992)
- Prevented a console warning when a nonexistent map is passed to the `getmapinfo()` script command. (584e8de35)
- Fixed a RODEX loading data problem when a message's expiration date was manually edited. (#1995)
- Corrected the error messages displayed when using various restricted items to match the official servers. (#2006)
- Added a missing status refresh for the Homunculus Autofeed system when changing maps. (#2002)
- Fixed a NULL pointer check failure when `TK_JUMPKICK` is used by a non-player. (#2015, issue #1875)
- Fixed compilation of the HPMHooking plugin on systems where `sprintf()` is a macro. (#2009, issue #2003)

## [v2018.03.11] `March 11 2018`

### Added

- Added a new `mapcache` plugin to convert, update or recreate mapcache files in the new format. (part of #1552)
- Added appveyor configuration to the repository. (part of #1552)
- Exposed `script->sprintf()` to plugins. (#1976)
- Added/updated packets support for clients from 2018-02-21 to 2018-03-09. (#1983)

### Changed

- Updated the mapcache to a new, git-friendly, format having one file per map. (#1552, #1981)
  - For info on how to convert or recreate mapcache entries, see the mapcache plugin (`./map-server --load-plugin mapcache --help`)
- Removed the display of PIN codes and passwords from the `@accinfo` GM command. Old code is kept commented out for those that may wish to re-enable it. (#1975)
- Updated `README.md` with some clarifications and corrections. (#1985)

### Fixed

- Updated the VS project files with the recently added .h files, for better intellisense/search. (#1970)
- Fixed a NULL pointer in `login->accounts`, only affecting plugins. (part of #1979)
- Fixed a case of use after free in the `@reloadatcommand` GM command. (part of #1979)
- Added several missing checks in various `clif_parse_*` functions. (part of #1979)
- Fixed various PIN code related exploits. (part of #1979)
- Fixed a case of use after free when the option `delay_battle_damage` is set to false. (part of #1979)
- Fixed a segmentation fault in clan-related code when using the `db2sql` plugin. (#1989, issue #1984)
- Fixed an incorrect behavior in RODEX returned messages. (part of #1987)
- Fixed an error that made RODEX mails impossible to delete in some cases. (part of #1987)
- Fixed a NULL pointer in RODEX when the user tried to perform actions on unloaded mails. (part of #1987, issue #1977)
- Fixed an incorrect interaction between RODEX and NPCs. (#1936)
- Fixed an incorrect Kafra Points / Cash Points calculation. (#1541, issue #1540)

### Removed

- Removed the old `mapcache` executable, superseded by the new plugin. (part of #1552)

## [v2018.02.11+1] `February 13 2018` `PATCH 1`

### Fixed

- Fixed a possible crash in `@cvcon` (and possibly other functions) when a referenced map zone doesn't exist. (#1972, issue #1971)
- Fixed the messages displayed when enabling or disabling CvC. (part of #1972)
- Extended the `bg_message` string termination fix to all the clients. (#1973)

## [v2018.02.11] `February 11 2018`

### Added

- Added/updated packets support for clients from 2017-12-13 to 2018-01-24. (part of #1957)
- Implemented the official Clan System, including the possibility of customization and a Clan vs Clan versus mode. (#1718, #1964, #1968, related to issue #241)
  - New GM commands: `@claninfo`, `@joinclan`, `@leaveclan`, `@reloadclans`, `@cvcon` and `@cvcoff`.
  - New script commands: `clan_join()`, `clan_leave()` and `clan_master()`; extended `strcharinfo()` and `getcharid()`.
  - Configuration changes: see `conf/clans.conf`, `conf/map/logs.conf`, `db/clans.conf`, `db/*/map_zone_db.conf`.
  - Note: This requires the SQL migrations `2017-06-04--15-04.sql` and `2017-06-04--15-05.sql`.
  - Note: The `npc/re/other/clans.txt` script is now loaded by default in renewal mode.
- Added several (status-icon related) constants to the script engine (through the new `constants.inc` file). (part of #1718)
- Implemented the missing HPM interfaces in the login server (account, ipban, lchrif), added the missing variables into the login interfaces. (#1963, issue #1908)
  - The `_sql` suffix has been removed from the source files in the login server.
  - Functions in `account.c` and `loginlog.c` have been prefixed with `account_` and `loginlog_` respectively.
  - The `chrif_` functions of the login server have been renamed to `lchrif_`.
  - The `server[]` array has been moved to `login->dbs->server[]`.
  - The `account` (account.h), `ipban` (`ipban.h`), `lchrif` (login.h), `loginlog` (`loginlog.h`)
  - Several `log_*` global variables have been moved to the loginlog interface, with their respective names.
  - The `account_engine[0]` variable has been moved to `login->dbs->account_engine` (note: this is not an array!)
- Added/updated packets support for clients from 2018-01-31 to 2018-02-07. (#1969)

### Changed

- Applied script standardization to the Bakonawa Lake instance script. (#1874)
- Applied script standardization to the Buwaya Cave instance script. (#1877)
- Applied script standardization to the Eclage Interior instance script. (#1878)
- Applied script standardization to the Hazy Forest instance script. (#1880)
- Applied script standardization to the Malangdo Culvert instance script. (#1881)

### Fixed

- Fixed compatibility issues with the 2013-12-23 client. (part of #1957, issue #1956)
- Prevented the leak of a hidden GM's presence through area packets. (#1200)
- Fixed an unterminated string in the `bg_message()` related packets, with certain client versions. (#1890)

## [v2018.01.14] `January 14 2018`

### Added

- Added support for the `AllowReproduce` flag in the skill DB. This supersedes the `skill_reproduce_db`. (#1943)
- Added support for the `ZC_PROGRESS_ACTOR` packet. The packet is exposed to the script engine through the `progressbar_unit()` command (available on PACKETVER 20130821 and newer). (#1929)
- Added support for the new item drop packet for the Zero clients. The packet is controlled by the `ShowDropEffect` and `DropEffectMode` item DB flags and ignored by non-Zero clients. (#1939)
- Added support for the new Map Server Change packet 0x0ac7. (part of #1948)

### Changed

- Always enabled assertions and null pointer checks. In order to disable them (very discouraged, as it may lead to security issues), it is now necessary to edit `nullpo.h`. (#1937)
- Disabled the address sanitizer's memory leak detector in the travis builds, since it produced failures in third libraries. (#1949, #1952)
- Applied script standardization to the Nydhogg's Nest instance script. (#1871)
- Split `packet_keys.h` into separate files for main clients and zero clients. (part of #1948)
- Split `packets_shuffle.h` into separate files for main clients and zero clients. (part of #1948)
- Replaced the custom bank unavailable error message with the actual bank check error packet. (part of #1948)
- Updated and corrected the party member and party info packets. (part of #1948)
- Updated `README.md` with more relevant badges and links (added Discord, removed Waffle, added more GitHub information). (#1951)

### Fixed

- Updated Xcode project to include the RODEX related files. (#1942)
- Fixed RODEX loading mails when it requires multiple packets. (#1945, issue #1933)

### Removed

- Removed the `skill_reproduce_db`, now superseded by the `AllowReproduce` skill flag. (part of #1943)

## [v2017.12.17] `December 17 2017`

### Added

- Implemented Homunculus Autofeeding, available on the 2017 clients. The feature can be disabled by flipping `features.enable_homun_autofeed` in `feature.conf`. (#1898)
- Added support for the newly released Ragnarok Zero clients. The client type is controlled with the `--enable-packetver-zero` configure-time flag (disabled by default). (#1923)

### Changed

- Applied script standardization to the Old Glast Heim instance script. (#1883)
- Split packets.h into two files: `packets.h` and `packets_shuffle.h`. (part of #1923)

### Fixed

- Corrected a wrong path displayed in an error message pointing to the map-server configuration. (#1913)
- Fixed the natural expiration of the Poison status when under the effect of Slow Poison. (#1925)

## [v2017.11.19+2] `November 28 2017` `PATCH 2`

### Fixed

- Fixed an item loading failure in RODEX. (#1917, issue #1912)
- Fixed invisible NPCs (such as `FAKE_NPC`) being displayed as novices. (#1918, issue #1916)

## [v2017.11.19+1] `November 24 2017` `PATCH 1`

### Fixed

- Suppressed assertions in the Skill DB accessors when called with `skill_id = 0` (normal attacks). (#1910, issue #1909)

## [v2017.11.19] `November 19 2017`

### Added

- Added several missing members to the login interface. (Part of #1891)
- Added support for colored character server population counter in the service selection list. Configurable through `users_count` in `login-server.conf`. (#1891)
- Added top-level command `miniboss_monster` to label monsters as minibosses, and to send them as such to the client. (part of #1889)
- Added support for 2017-10-25 - 2017-11-01 clients. (#1889)
- Added support to display NPCs with player classes, including equipment and styles (best with clients starting from 20170726). This extends `getunitdata()` and `setunitdata()` with support for `UDT_SEX`, `UDT_HAIRSTYLE`, `UDT_HAIRCOLOR`, `UDT_HEADBOTTOM`, `UDT_HEADMIDDLE`, `UDT_HEADTOP`, `UDT_CLOTHCOLOR`, `UDT_SHIELD`, `UDT_WEAPON`, `UDT_ROBE`, `UDT_BODY2`. (#1893)
- Added type constants for the `getiteminfo()` and `setiteminfo()` script commands. Existing third party code must be updated to use the new constants (see the pull request description and the command documentation for details). (#1902)
- Added global function `F_GetAmmoType()`, counterpart to `F_GetWeaponType()` for ammunitions. Both functions have now been updated to only check the subtype if the item type is correct (`IT_AMMO` and `IT_WEAPON` respectively). (part of #1902)
- Added support for the Skill Scale packet, available in client versions 20151223 and newer. (#1903)

### Changed

- Applied script standardization to the Octopus Cave instance script. (#1882)
- Applied script standardization to the Ghost Palace instance script. (#1879)
- Applied script standardization to the Sara's Memory instance script. (#1884)
- Extended the script command `setequipoption()` with the possibility to remove item options from an equipment piece. (#1865)
- Updated the `QTYPE_*` constants (`questinfo()`, `showevent()`) to support the new 2017 client icons. (#1894)
- Applied script standardization to the Orc's Memory instance script. (#1872)
- Applied script standardization to the Sealed Shrine instance script. (#1873)
- Extended the global function `F_GetArmorType()` to support costumes and shadow equipment. (#1836)
- Extended the script commands `has_instance()` and `has_instance2()` with support to search instances of type `IOT_NONE`. (#1397)
- Applied script standardization and improvements to the Endless Tower instance script. (#1862)
- Cleared some confusion between skill IDs and indexes through the codebase. Rewritten Skill DB accessors in a safer, more readable way. (part of #1896)

### Deprecated

- The use of numeric type constants with `getiteminfo()` and `setiteminfo()` is deprecated. For technical reasons, no deprecation notice is displayed. (part of #1902)

### Removed

- The `MAX_SKILL` constant has been removed, in favor of the more clear `MAX_SKILL_DB`, to be used in all places that use the compacted Skill DB array. For use with the non-compacted clientside Skill IDs, the `MAX_SKILL_ID` constant is still available. (part of #1896)

### Fixed

- Fixed compilation warnings when compiling with gcc-7. (#1887)
- Fixed the display flag for monsters labeled as `boss_monster` to be that of MVP monsters instead of miniboss monsters. (part of #1889)
- Fixed a subtle error in case `skill->unit_group_newid` overflows, causing certain skill unit entries to get stuck and never get deleted correctly. This can manifest itself with some monster spawns becoming immune to certain AoE spells having the `UF_NOOVERLAP` flag (Storm Gust, Lord of Vermillion, etc). (#1896)
- Implemented MATK support in the `getiteminfo()` and `setiteminfo()`. This functionality was previously advertised as available in the command documentation, but was not implemented. (part of #1902)
- Restored View Sprite support in the `getiteminfo()` and `setiteminfo()`. This functionality was lost with #1828. (part of #1902, issue #1895)
- Reimplemented the global function `F_GetArmorType()` to reflect the fact that  `ITEMINFO_LOC` returns a bitmask. The function now handles multi-slot headgears and other uncommon cases better. (part of #1902)
- Corrected some incorrect data types passed to the SQL `StmtBind` functions, causing query errors and data loss. Said functions will now have a runtime assertion to ensure the right data type is passed. Third party code needs to be updated to reflect this stricter requirement. (#1901, issue #1531)
- Corrected some RODEX related queries in case `MAX_SLOTS` or `MAX_ITEM_OPTIONS` are set to custom values. (part of #1901)

## [v2017.10.22+1] `October 22 2017` `PATCH 1`

### Fixed

- Fixed a wrong null pointer check in `logmes()`, which caused the command to never log and instead print debug information.

## [v2017.10.22] `October 22 2017`

### Added

- Added the script command `getmapinfo()`, which allows to obtain misc information about a map. (#1852)
- Added an option to restrict party leader changes to characters on the same map. Controlled by the setting `party_change_leader_same_map` (defaults to true). (#1812)
- Added initial support (shuffle packets, obfuscation keys) for clients 2017-09-27, 2017-10-02, 2017-10-11, 2017-10-18. (#1859)
- Added the `noautoloot` mapflag, allowing to disable the `@autoloot` functionality on a map by map basis. (#1833)

### Changed

- Extended the script command `logmes()` with an option to log to the `atcommandlog` table. (#1843)
- Updated RoDEX, with support for packetver `20170419` and newer. (#1859)
- Updated Exp-related packets and handling functions to support values larger than 2 billions (as seen in packetver `20170830` and newer). (#1859)
- Changed the diagnostic message in `skill_init_unit_layout()` to report the skill ID instead of its index. (#1854)

### Fixed

- Corrected the Kafra dialog in case a Doram without the Summoner's Basic Skill attempts to open the Storage. (#1864)
- Changed the cell stack counting algorithm to ignore invisible NPCs, improving the Dancer Quest experience as well as other cases of hidden NPCs blocking off certain cells. (#1827)
- Improved the handling of the `cardfix` value to make it more resistant to overflows, especially in renewal mode. Simplified the related renewal/pre-renewal conditional code. (#1825)
- Fixed some compilation warnings occurring in VS2017. (#1870)

### Other

- New versioning scheme and project changelogs/release notes (#1853)

[Unreleased]: https://github.com/HerculesWS/Hercules/compare/stable...master
[v2026.07]: https://github.com/HerculesWS/Hercules/compare/v2026.06...v2026.07
[v2026.06]: https://github.com/HerculesWS/Hercules/compare/v2026.04...v2026.06
[v2026.04]: https://github.com/HerculesWS/Hercules/compare/v2025.01...v2026.04
[v2025.01]: https://github.com/HerculesWS/Hercules/compare/v2024.11...v2025.01
[v2024.11]: https://github.com/HerculesWS/Hercules/compare/v2024.10...v2024.11
[v2024.10]: https://github.com/HerculesWS/Hercules/compare/v2024.09...v2024.10
[v2024.09]: https://github.com/HerculesWS/Hercules/compare/v2024.08...v2024.09
[v2024.08]: https://github.com/HerculesWS/Hercules/compare/v2024.06...v2024.08
[v2024.06]: https://github.com/HerculesWS/Hercules/compare/v2024.05...v2024.06
[v2024.05]: https://github.com/HerculesWS/Hercules/compare/v2024.04...v2024.05
[v2024.04]: https://github.com/HerculesWS/Hercules/compare/v2024.03...v2024.04
[v2024.03]: https://github.com/HerculesWS/Hercules/compare/v2024.02...v2024.03
[v2024.02]: https://github.com/HerculesWS/Hercules/compare/v2023.12...v2024.02
[v2023.12]: https://github.com/HerculesWS/Hercules/compare/v2023.11...v2023.12
[v2023.11]: https://github.com/HerculesWS/Hercules/compare/v2023.10...v2023.11
[v2023.10]: https://github.com/HerculesWS/Hercules/compare/v2023.08...v2023.10
[v2023.08]: https://github.com/HerculesWS/Hercules/compare/v2023.07.12...v2023.08
[v2023.07.12]: https://github.com/HerculesWS/Hercules/compare/v2022.06.14...v2023.07.12
[v2023.06.14]: https://github.com/HerculesWS/Hercules/compare/v2022.05.10...v2023.06.14
[v2023.05.10]: https://github.com/HerculesWS/Hercules/compare/v2022.04.12...v2023.05.10
[v2023.04.12]: https://github.com/HerculesWS/Hercules/compare/v2022.03.08...v2023.04.12
[v2023.03.08]: https://github.com/HerculesWS/Hercules/compare/v2022.01.11...v2023.03.08
[v2023.01.11]: https://github.com/HerculesWS/Hercules/compare/v2022.12.07...v2023.01.11
[v2022.12.07]: https://github.com/HerculesWS/Hercules/compare/v2022.11.02+1...v2022.12.07
[v2022.11.02+1]: https://github.com/HerculesWS/Hercules/compare/v2022.11.02...v2022.11.02+1
[v2022.11.02]: https://github.com/HerculesWS/Hercules/compare/v2022.10.05...v2022.11.02
[v2022.10.05]: https://github.com/HerculesWS/Hercules/compare/v2022.06.01...v2022.10.05
[v2022.06.01]: https://github.com/HerculesWS/Hercules/compare/v2022.04.07...v2022.06.01
[v2022.04.07]: https://github.com/HerculesWS/Hercules/compare/v2022.03.02...v2022.04.07
[v2022.03.02]: https://github.com/HerculesWS/Hercules/compare/v2022.01.05+2...v2022.03.02
[v2022.01.05+2]: https://github.com/HerculesWS/Hercules/compare/v2022.01.05+1...v2022.01.05+2
[v2022.01.05+1]: https://github.com/HerculesWS/Hercules/compare/v2022.01.05...v2022.01.05+1
[v2022.01.05]: https://github.com/HerculesWS/Hercules/compare/v2021.12.01...v2022.01.05
[v2021.12.01]: https://github.com/HerculesWS/Hercules/compare/v2021.11.03+1...v2021.12.01
[v2021.11.03+1]: https://github.com/HerculesWS/Hercules/compare/v2021.11.03...v2021.11.03+1
[v2021.11.03]: https://github.com/HerculesWS/Hercules/compare/v2021.10.06+1...v2021.11.03
[v2021.10.06+1]: https://github.com/HerculesWS/Hercules/compare/v2021.10.06...v2021.10.06+1
[v2021.10.06]: https://github.com/HerculesWS/Hercules/compare/v2021.09.01...v2021.10.06
[v2021.09.01]: https://github.com/HerculesWS/Hercules/compare/v2021.08.04...v2021.09.01
[v2021.08.04]: https://github.com/HerculesWS/Hercules/compare/v2021.07.07...v2021.08.04
[v2021.07.07]: https://github.com/HerculesWS/Hercules/compare/v2021.06.02...v2021.07.07
[v2021.06.02]: https://github.com/HerculesWS/Hercules/compare/v2021.05.05...v2021.06.02
[v2021.05.05]: https://github.com/HerculesWS/Hercules/compare/v2021.04.05+1...v2021.05.05
[v2021.04.05+1]: https://github.com/HerculesWS/Hercules/compare/v2021.04.05...v2021.04.05+1
[v2021.04.05]: https://github.com/HerculesWS/Hercules/compare/v2021.03.08...v2021.04.05
[v2021.03.08]: https://github.com/HerculesWS/Hercules/compare/v2021.02.08...v2021.03.08
[v2021.02.08]: https://github.com/HerculesWS/Hercules/compare/v2021.01.11...v2021.02.08
[v2021.01.11]: https://github.com/HerculesWS/Hercules/compare/v2020.12.14+1...v2021.01.11
[v2020.12.14+1]: https://github.com/HerculesWS/Hercules/compare/v2020.12.14...v2020.12.14+1
[v2020.12.14]: https://github.com/HerculesWS/Hercules/compare/v2020.11.16...v2020.12.14
[v2020.11.16]: https://github.com/HerculesWS/Hercules/compare/v2020.10.19...v2020.11.16
[v2020.10.19]: https://github.com/HerculesWS/Hercules/compare/v2020.09.20...v2020.10.19
[v2020.09.20]: https://github.com/HerculesWS/Hercules/compare/v2020.08.23...v2020.09.20
[v2020.08.23]: https://github.com/HerculesWS/Hercules/compare/v2020.07.26...v2020.08.23
[v2020.07.26]: https://github.com/HerculesWS/Hercules/compare/v2020.06.28...v2020.07.26
[v2020.06.28]: https://github.com/HerculesWS/Hercules/compare/v2020.05.31+1...v2020.06.28
[v2020.05.31+1]: https://github.com/HerculesWS/Hercules/compare/v2020.05.31...v2020.05.31+1
[v2020.05.31]: https://github.com/HerculesWS/Hercules/compare/v2020.05.03...v2020.05.31
[v2020.05.03]: https://github.com/HerculesWS/Hercules/compare/v2020.04.05+1...v2020.05.03
[v2020.04.05+1]: https://github.com/HerculesWS/Hercules/compare/v2020.04.05...v2020.04.05+1
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