CHANGELOG.md

# Change Log

7.0.1 (unreleased)
--------------------------

### Improvements

- Improve outline extraction algorithm for the Swift syntax.


### Fixes

- [trivial] Fix typos in localized labels.



7.0.0 (813)
--------------------------

### Improvements

- [beta] Update tree-sitter-scala to 0.26.0.


### Fixes

- Fix an issue where key bindings imported from a settings archive could be lost after relaunching the app.
- Fix issues where the Script menu could become outdated after changes in the Scripts folder.
- [trivial] Fix an issue where a renamed setting could become deselected if surrounding whitespace in the new name is trimmed.
- [beta] Fix an issue where custom syntaxes in a settings archive were not imported.
- [beta] Fix an issue where migrated syntax definitions were not available until the next launch.



7.0.0-rc.2 (810)
--------------------------

### Improvements

- [beta] Tweak the user guide.


### Fixes

- [beta] Fix an issue where importing legacy YAML syntax definitions from the Format settings could fail.



7.0.0-rc (809)
--------------------------

### Compatibility Changes

- [beta] Change the location to save custom syntaxes.


### Improvements

- Improve word selection and related editing actions to treat commas as word delimiters.
- [trivial] Improve stability when handling file change conflicts.
- [beta] Improve syntax highlighting for JavaScript, Ruby, and TypeScript.
- [beta] Update outline extraction algorithms for C, C#, C++, and JavaScript.
- [beta] Update tree-sitter-c-sharp to 0.23.5.
- [beta][trivial] Update the document icon for the CotEditor Syntax document.


### Fixes

- Fix an issue where TSV multiple replace definitions could not import empty replacement strings.
- Fix issues in the file browser where items could point to the wrong location after being moved or renamed.
- Fix an issue in the file browser where replacing a file with a folder, or vice versa, could leave the displayed state outdated.
- Fix an issue in the file browser where newly created or duplicated items could fail to become selected immediately in some folders.
- Fix an issue where line reordering commands could insert extra blank lines in documents using CRLF line endings.
- [trivial] Fix some typos in localizations and user guides.
- [beta] Fix the outline extraction algorithms for Java, Kotlin, PHP, Python, and TypeScript.



7.0.0-beta.3 (807)
--------------------------

### Improvements

- Update the inspector’s appearance on macOS Tahoe 26.
- [beta] Update the SVG syntax for syntax highlighting.
- [beta] Update the Python syntax highlighting parsing.


### Fixes

- Fix an issue where AppleScript could return an unclear error when a folder document had no current document.
- Fix an issue where requesting a zero-length text range via AppleScript could return an unintended character.
- Fix an issue where some decimal setting values could use the wrong number format and be reset unexpectedly in certain locale configurations.
- [beta] Fix the HTML outline extraction to include headings with nested elements.



7.0.0-beta.2 (804)
--------------------------

### Improvements

- [non-AppStore ver.] Update Sparkle from 2.9.0 to 2.9.1.
- [beta] Tweak outline item icons.
- [beta] Optimize the outline extraction algorithm.
- [beta] Optimize the regex-based syntax highlighting algorithm.
- [beta] Improve the Python outline to extract class variables.
- [beta] Add missing localizations.
- [beta] Update tree-sitter-rust to 0.24.2.


### Fixes

- Fix an issue where TSV multiple replace definitions could fail to overwrite an existing definition when re-imported.
- [beta] Fix outline extraction in the LaTeX and Swift syntaxes.



7.0.0-beta (802)
--------------------------

### Compatibility Changes

- Introduce CotEditor Syntax, a new syntax definition format (the legacy YAML-based syntax definition format is now deprecated; user-created syntaxes are automatically migrated on first launch).


### New Features

- Adopt smarter syntax parsing powered by tree-sitter for multiple built-in syntaxes, improving syntax highlighting and outline extraction in C, C#, C++, CSS, Go, HTML, Java, JavaScript, Kotlin, LaTeX, Lua, Makefile, Markdown (outline extraction only), PHP, Python, Ruby, Rust, Scala, Shell Script, SQL, Swift, and TypeScript.
- Display symbolic icons next to outline items.
- Allow collapsing outline items in the Outline inspector for tree-sitter-based and structured document syntaxes.
- Add the “Wrap Lines” option to the Outline inspector.
- Make smart indentation aware of the current syntax.
- Expand comment delimiter settings in syntax definitions, allowing multiple delimiters and related options.
- Add detailed delimiter settings for strings, characters, and indentation to syntax definitions.
- Add the Multiline option to highlighting rules in syntax definitions so matches can span multiple lines.
- Show the current position in search results in the Find field while navigating between matches (for example, “2/5”).
- Add `CurrentLine` and `ReplaceCurrentLine` to the UNIX script input/output keywords for editing the current line in the editor.
- Add Bulgarian localization (thanks to Miroslav Dragoev!).


### Improvements

- Improve the syntax-highlighting algorithm for legacy regex-based parsing.
- Update built-in syntaxes.
- Use the user’s window size setting for the Zoom action, if available.
- Improve general text-editing performance.
- Hide line numbers in the window titlebar area when the navigation bar is hidden on macOS Tahoe 26.
- [trivial] Adjust the About CotEditor window.
- [trivial] Rename the Recolor All command to “Reset Syntax Analysis” and move it to the Format menu.
- [trivial] Remove the Restore Defaults button in the syntax editor.
- [trivial] Tweak colors of the default Anura theme.


### Fixes

- Fix incorrect syntax parsing in some built-in syntaxes.
- Fix an issue where the default file extension in the save dialog was .txt for syntaxes with a file extension not registered in the system.


### Known Issues

- The text added to CotEditor 7.0.0 are not localized yet in Czech and Polish.



6.2.6 (798)
--------------------------

### Improvements

- Improve stability on MacBook Pro models with Touch Bar.
- [dev] Update the build environment to Xcode 26.4.


### Fixes

- Fix a crash on exporting settings when some setting values are not customized.
- Fix a potential crash in Find All when a matched line is extremely long.
- Address a potential crash when editing a keyboard shortcut in the snippets settings.



6.2.5 (796)
--------------------------

### Improvements

- Create a new document from a UNIX script only when output is available, using the `%%%{CotEditorXOutput=NewDocument}%%%` option.
- Improve overall stability.


### Fixes

- Fix an issue where the default file extension for Markdown documents was .txt instead of .md.
- Fix an issue where snippets were not included in the settings export.
- Fix an issue where settings imported from a settings archive incorrectly included filename extensions.
- Fix an issue where invisible characters were not printed even if the “Print Invisible” option in the print settings was enabled.
- Fix descriptions in the user guide for UNIX scripting.
- Address a potential crash in the file browser when creating, duplicating, or moving files.
- Address a potential crash when a document was modified by another process.
- [trivial] Fix an issue where the What’s New window could not be closed with the Esc key.



6.2.4 (794)
--------------------------

### Improvements

- [non-AppStore ver.] Update Sparkle from 2.8.1 to 2.9.0.
- [dev] Update the build environment to Xcode 26.3.


### Fixes

- Fix an issue where smart indentation did not work under certain conditions.
- Fix an issue in the Find window where syntax highlighting for regular expressions could break for some patterns.
- Fix an issue where the editor incorrectly highlighted paired symbols when an escaped symbol was nearby.
- Fix an issue in the file browser where TypeScript documents were incorrectly displayed with a video icon.
- Address a potential crash when pasting multiline text into the editor under certain conditions.
- Address a potential crash when closing a document.



6.2.3 (792)
--------------------------

### New Features

- Add AppleScript support for `folder document`, including the `current document` property and forwarding of `document` commands.


### Improvements

- Optimize the performance of scanning incompatible characters.
- Accept the JSON5 format when importing custom themes and multiple replace definitions.
- Improve the behavior of trailing whitespace trimming.
- Update the JSON syntax to highlight comments in the JSON5 format.
- Improve overall stability.
- [dev] Update the build environment to Xcode 26.3-rc.


### Fixes

- Fix an issue where the app could crash when opening a large file while the Warnings inspector was open.
- Address an issue where the Save dialog for documents ignored the current syntax for the default file extension.
- [trivial] Fix the position of the Sidebar toolbar item.



6.2.2 (789)
--------------------------

### New Features

- Add the `--goto` option to the `cot` command-line tool as syntactic sugar for the `--line` and `--column` options. See `--help` or the user guide for details.
- Add Chinese (Hong Kong) localization (thanks to changanmoon!).


### Improvements

- Improve the text encoding detection algorithm.
- Update the C++ syntax to include the .cu and .cuh filename extensions.


### Fixes

- Fix an issue in the syntax editor where the outline title field occasionally became uneditable.
- Fix an issue in the Outline inspector where matches filtered by the filter field were not highlighted.
- Update the Swift syntax to fix outline extraction.



6.2.1 (787)
--------------------------

### Improvements

- Improve word deletion to treat periods and colons as word delimiters.
- Update the filter after duplicating a file in the file browser.
- Update the user guide.


### Fixes

- Fix an issue in the file browser where files weren’t hidden when the document’s folder name matched the filter string.
- Fix an issue where the app crashed when cutting rectangular selections at the end of a document with CRLF line endings.



6.2.0 (785)
--------------------------

### Improvements

- [beta][dev] Update the build environment to Xcode 26.2.
- [beta] Add missing localizations.
- [beta] Update the user guide.


### Fixes

- Fix an issue where scroll bars in the editor became invisible under certain theme and appearance combinations.
- [trivial] Fix the vertical scroller drawing with the RTL writing mode on macOS 26.



6.2.0-rc (782)
--------------------------

### Improvements

- [beta][dev] Update the build environment to Xcode 26.2 RC.
- [beta] Add missing localizations.
- [beta] Update the user guide.


### Fixes

- Fix an issue where the default syntax setting reverted to Plain Text after a short time when set to None.



6.2.0-beta.4 (780)
--------------------------

### Improvements

- [beta] Add missing localizations.
- [beta] Update the user guide.


### Fixes

- Fix an issue in the Donation settings pane where the purchase button for the one-time donation didn’t work on subsequent attempts.
- Address an issue where scrolling the editor with arrow keys caused unexpected jumps.


### Known Issues

- The text added to CotEditor 6.2.0 are not yet localized to Simplified Chinese and Portuguese.



6.2.0-beta.3 (778)
--------------------------

### New Features

- Support for importing multiple replace definitions from tab-separated values.


### Improvements

- [trivial] Select the newly added settings after importing a settings file.
- [beta] Add missing Portuguese localizations.
- [beta] Update the user guide.


### Fixes

- Fix an issue in CotEditor 6.1.2 where the text entered in a split editor didn’t match the theme's text color.


### Known Issues

- The text added to CotEditor 6.2.0 are not fully localized yet.



6.2.0-beta (774)
--------------------------

### New Features

- Add a feature to export and import settings to transfer them to another Mac.
- Allow opening alias and symlink documents from the file browser.
- Request file access permission from the user by the “Open in New Window” command instead of simply presenting an error when CotEditor doesn’t have permission.
- Display the original path for alias and symlink files in file preview views.


### Improvements

- Syntax highlighting now takes nesting into account when highlighting symbol pairs.
- Update the Lua syntax to support nested string delimiters.
- Update the contents and layout of the user guide.
- [dev] Update the build environment to Xcode 26.2 beta 2.


### Known Issues

- The text added to CotEditor 6.2.0 are not yet localized to Czech and Portuguese.



6.1.2 (771)
--------------------------

### Improvements

- Keep the selection in the file browser when filtering by filename.
- [non-AppStore ver.] Update Sparkle from 2.8.0 to 2.8.1.


### Fixes

- Fix an issue where changing the theme color while a document is in front of the Settings window immediately overwrites the editor’s text color with the selected color.
- Fix an issue where an incremental search with the global search text is automatically performed when the application becomes active.
- Fix an issue where the file browser prompts an error message when selecting a symlink or alias whose original is unavailable.



6.1.1 (769)
--------------------------

### Improvements

- Reset filename filtering by performing the Add File/Folder commands.


### Fixes

- Fix an issue where the editor doesn’t receive focus by document opening when the system keyboard navigation feature is enabled.
- Fix an issue where a focus ring appears in an empty area in the navigation bar by document opening when the system keyboard navigation feature is enabled.
- Fix an issue in the file browser where the items are not sorted when a top-level item was renamed.
- Fix an issue in the Quick Action bar where the last input remains.
- Fix an issue in editors where the word selection doesn’t expand properly when dragging the mouse.



6.1.0 (767)
--------------------------

### Fixes

- Fix an issue where the text fields in sheet dialogs don’t get focus when they appear.
- [beta] Fix an issue where the Syntax toolbar menu doesn’t select the current one.



6.1.0-rc.2 (765)
--------------------------

### New Features

- Add Russian localization (Thanks to Andrey!).


### Improvements

- [trivial] Adjust the layout of the Settings window.
- [trivial] Update the Unicode block name list.


### Fixes

- [beta] Fixed an issue where filenames were not properly truncated when filtering in the file browser.



6.1.0-rc (763)
--------------------------

### Improvements

- Update the Verilog syntax to support SystemVerilog.
- Update the Swift syntax.
- [beta] Add missing localizations.
- [beta][dev] Update the build environment to Xcode 26.1 RC.


### Fixes

- Fix an issue where the counts in the status bar are occasionally unavailable when the document is opened.



6.1.0-beta (761)
--------------------------

### New Features

- Introduce the filter feature in the file browser.
- Introduce the “Insert comment delimiters after indent” option to the Edit settings pane.
- Revert the “Append a space to comment delimiter” option to the Edit settings pane.


### Improvements

- Improve the algorithm to comment out block comments.
- Ignore .git folders in the file browser.
- Prevent moving focus to the editor when selecting a document in the file browser.
- [dev] Update the build environment to Xcode 26.1 beta 3.



6.0.4 (756)
--------------------------

### Improvements

- Improve the user interface details on macOS 26.
- Enable the enhanced runtime security protections.
- Ensure that the sidebar is always displayed when opening a folder document.
- Improve the “Open with External Editor” button in file preview views to allow specifying the application to open.
- [trivial] Display a confirmation dialog after changing the “Reopen windows from last session” option in the General settings pane.
- [trivial] Make text in the information part of the About window selectable.
- [dev] Update Yams from 6.1.0 to 6.2.0.
- [dev] Update the build environment to Xcode 26.0.1.


### Fixes

- Workaround an issue on macOS 26 where the editor’s scroller tracks have a different style compared to standard scrollers.
- Fix an issue in the vertical text orientation where the line number view is tucked beneath the titlebar when the navigation bar is hidden.
- Fix an issue in the multiple replacement window where the text selection is unexpectedly canceled.
- Fix an issue where the editor in a document opened by replacing with a blank document doesn’t initially have focus.
- Fix an issue in the Find All command where the result view doesn’t display the correct document title when the target document was created by replacing with a blank document.
- Fix an issue where the line endings pop-up button doesn’t work when the document was opened in a blank document.
- Fix an issue in the multiple replacement window where the sidebar can be collapsed.
- Fix an issue where the syntax mapping conflict view cannot be closed.



6.0.3 (751)
--------------------------

### Improvements

- Change the default editor font size to 13 pt.


### Fixes

- Fix an issue on macOS 15 where the horizontal scroller appears in editors even when setting lines to wrap.
- Address a potential crash on macOS 26 that can occur when opening a document.



6.0.2 (749)
--------------------------

### Fixes

- Fix an issue on macOS 26 where the application crashes by opening the Donation settings pane while a system theme color other than Multicolor is selected in the System Settings > Appearance.
- Fix an issue where the theme setting changes unexpectedly when opening the Appearance settings pane after switching the system appearance mode.
- Fix an issue where the indentation style detection doesn’t work.



6.0.1 (747)
--------------------------

### Improvements

- Avoid assigning the Shift+Return shortcut key for a snippet.
- [trivial] Update find result messages.
- [dev] Update the build environment to Xcode 26.0.
- [non-AppStore ver.] Update Sparkle from 2.8.0-beta.3 to 2.8.0.


### Fixes

- Fix an issue where the file browser doesn't show the entire filenames when the scroller slot is shown.
- Fix an issue where the “Convert Indentation” commands don’t convert if no characters are selected.
- Fix an issue where the input fields in the Find window accept rich text.
- Fix an issue where folder documents can open multiple windows for the same folder.
- Address a potential crash on macOS 26 that occurs when performing a keyboard shortcut.
- Address a potential crash on macOS 26 that can occur when opening a document on an Intel-based Mac.
- [trivial] Fix an issue where the default encoding pop-up button in the Format settings pane is positioned incorrectly.


### Known Issues

- The scroller slots of the editor are drawn in a different style from the standard scrollers in macOS 26 (FB20310722).
- The application crashes by opening the Donation settings pane when a system theme color other than Multicolor is selected in the System Settings > Appearance (FB20281734).



6.0.0 (744)
--------------------------

### Improvements

- [trivial] Update the layout of the “What’s New” window.


### Fixes

- Fix an issue where the “Convert Indentation” commands don’t convert indentation to the indent style that’s not the default.
- Fix an issue where the Syntax toolbar menu is disabled when the toolbar is shown afterward.
- Fix an issue in the Dutch localization where the number of found items isn’t displayed in the Find window.
- [beta] Keep the number of found in the Find window when typing the replacement text.
- [rc.2] Fix an issue where the scroll edge effect is not applied to the file browser.
- [rc.2] Fix an issue where a input field in the print dialog is compressed.



6.0.0-rc.2 (739)
--------------------------

### Improvements

- [rc] Update screenshots in the User Guide.
- [rc] Update the Portuguese localization.


### Fixes

- Fix an issue where the size of the Multiple Replace window is not stored.
- [rc] Fix an issue where the cursor in the input fields within the Find window can move unexpectedly.
- [beta] Fix an issue where the first multiple replace definition could be cleared when the setting window appears.



6.0.0-rc (737)
--------------------------

### Improvements

- Display the numbers of registered items below the lists in the syntax editor.
- Deprecate the “Make Snake Case,” “Make Camel Case,” and “Make Pascal Case” commands in the Text > Transformations menu.
- [dev] Migrate the input fields in the Find window to SwiftUI.
- [non-AppStore ver.] Update Sparkle from 2.7.1 to 2.8.0-beta.3.
- [beta][dev] Update the build environment to Xcode 26.0 RC.


### Fixes

- [beta] Fix an issue where the text color in the text fields within the Find window appears black in the dark mode.
- [beta] Fix the border color of setting lists in the settings window in the dark mode.



6.0.0-beta.2 (733)
--------------------------

### Improvements

- [beta] Adjust the user interface.
- [beta] Avoid tinging folder with tags in the file browser on macOS 15.
- [beta] Tweak the application icon.
- [beta][dev] Update the build environment to Xcode 26.0 Beta 7.



6.0.0-beta (731)
--------------------------

### New Features

- Support __macOS Tahoe 26__.


### Improvements

- Change the system requirement to __macOS Sequoia 15 and later__.
- Update the user interface on macOS 26 to the Liquid Glass style.
- Update the application icon to the Liquid Glass style.
- The options to highlight matching braces have been removed and they are now always highlighted.
- Apply the text find highlighting to all split editors.
- Move selected items to the Trash by the Delete action in the file browser.
- Show also the file size of the previewed document in the status bar.
- Deprecate the feature to change the editor opacity per window.
- Deprecate the feature of installing a custom theme by simply opening the file in CotEditor.
- Deprecate the “Hiragana to Katakana” and “Katakana to Hiragana” commands in the Text > Transformations menu.
- Deprecate the “Draw separator” option for the line number view on macOS 26.
- [trivial] Rename the “Half-width to Full-width” and “Full-width to Half-width” commands to “Convert to Full Width” and “Convert to Half Width”, respectively.
- [trivial] Improve the behavior of Add/Remove buttons.
- [dev] Migrate the theme list and syntax list in the Settings to SwiftUI.
- [dev] Update the build environment to Xcode 26.0 Beta 6 (Swift 6.2, macOS 26 SDK).
- [non-AppStore ver.] Add an update badge to the “Check for Update” menu item if an update is available.



5.2.3 (730)
--------------------------

### Improvements

- Update the CSS and Go syntaxes to highlight more keywords (thanks to Karam!).
- [dev] Update Yams from 6.0.2 to 6.1.0.



5.2.2 (728)
--------------------------

### Fixes

- Fix an issue in CotEditor 5.2.1 where the text color in the text fields within the Find window appears black in the dark mode.



5.2.1 (726)
--------------------------

### Improvements

- Update the CSS syntax to highlight more keywords (thanks to Karam!).
- Update the JavaScript syntax to highlight placeholders in template literals.


### Fixes

- Fix an issue where the state of the Text Replacement option in modes is not saved.
- Fix an issue where shortcuts could be assigned in the Key Bindings settings to menu commands that perform multiple replacements, even though these shortcuts didn’t actually work.
- Fix an issue where the font in the input fields of the Find window would occasionally be replaced by a fallback font.
- Fix an issue where the options button in the advanced character count doesn’t work.



5.2.0 (724)
--------------------------

### Fixes

- Fix an issue where the cached settings remain unchanged after executing the “Reload All Theme,” “Reload All Syntax,” or “Reload All Definitions” commands.



5.2.0-rc (723)
--------------------------

### Improvements

- [trivial] Adjust the layout of the multiple replacement definition editor.
- [dev] Update Yams from 6.0.1 to 6.0.2.
- [beta] Update Korean, Polish, and Portuguese localizations.


### Fixes

- Fix an issue where opening a document with mixed line endings incorrectly unifies them to the dominant line ending when it is not LF.
- Fix an issue where a document containing incompatible characters cannot be closed without lossy saving.
- Fix an issue where the text encoding of restored documents could be incorrectly set to Unicode (UTF-8).



5.2.0-beta (721)
--------------------------

### New Features

- Allow adding and removing text encodings from the text encoding list, and enabling the handling of a wider range of encodings.
- Add the Xcode Project syntax (.pbxproj).
- Add the Metal syntax (thanks to Aybars Nazlica!).


### Improvements

- Improve differentiation without color.
- Update the CSS syntax to highlight more keywords (thanks to Karam!).
- Update the HTML syntax to highlight more keywords (thanks to Karam!).
- [non-AppStore ver.] Update Sparkle from 2.7.0 to 2.7.1.


### Fixes

 - Fix an issue where the `Option`-`Delete Forward` shortcut deletes the previous word instead of the next word by the multi-cursor editing mode.
 - Fix an issue in the file browser where the order of renamed items remains unchanged.


### Known Issue

- The text added in CotEditor 5.2.0 are not localized yet in Dutch, Korean, Polish, Portuguese, and Spanish.



5.1.8 (720)
--------------------------

### Improvements

- Update the default encoding priority list.
- Update the HTML syntax to highlight ARIA attributes (thanks to Karam!).
- [trivial] Update the User Guide.
- [dev] Update Yams from 6.0.0 to 6.0.1.


### Fixes

- [dev] Fix an issue on macOS 26 beta where the editor goes under the titlebar.



5.1.7 (718)
--------------------------

### New Features

- Enhance the content of the file preview view for the file browser.
- Add the “Copy File Path” command to the File menu as an alternative to the “Show in Finder” command, which can be shown while pressing the Option key.


### Improvements

- Update the CSS syntax to add new keywords (thanks to Karam!).
- Improve the VoiceOver support in folder documents.
- Improve the Spanish localization (thanks to Hector!).
- [dev] Update the build environment to Xcode 16.4.
- [dev] Update Yams from 5.3.1 to 6.0.0.


### Fixes

- [trivial] Fix the layout of the file browser when a filename contains line ending characters.



5.1.6 (716)
--------------------------

### Improvements

- [trivial] Improve the Recently Used list of syntaxes in the toolbar item.


### Fixes

- Fix an issue where an existing document may unintentionally shift when a new document is opened.
- [trivial] Fix an issue where the titlebar separator in the inspector is drawn in the incorrect position when the tab bar is shown.



5.1.5 (714)
--------------------------

### Improvements

- Keep syntax highlights by text selection in the Dark mode as well.


### Fixes

- Fix an issue on CotEditor 5.1.4 where the insertion point rarely jumps to the nearest outline item when the outline inspector is shown.



5.1.4 (712)
--------------------------

### Improvements

- Enable the “text replacement” option by default in custom modes.


### Fixes

- Fix an issue on CotEditor 5.1.3 where the app rarely becomes unresponsive when a save is performed.
- Fix an issue where the document position doesn’t cascade from the previous document when opening a document while the app is inactive.



5.1.3 (709)
--------------------------

### Improvements

- Automatically insert a closing symbol also for single and back quotation marks when the “Automatically insert closing brackets and quotes” option is enabled.
- Update the naming convention for duplicated files and folders in the file browser.
- Discontinue appending the “copy” suffix to user settings, such as syntax definitions, when duplicating them.
- Improve the syntax highlighting algorithm.
- Update the Markdown syntax to improve the highlighting of code blocks.
- Update the Go syntax to fix some highlighting keywords (thanks to Karam!).
- Improve the stability.
- [trivial] Improve the tooltip appearance when hovering over a truncated item in the file browser.
- [dev] Update the build environment to Xcode 16.3 (Swift 6.1, macOS 15.4 SDK).


### Fixes

- Fix an issue in the Portuguese localization where the app crashes when attempting to duplicate an item in the file browser.
- Fix an issue in CotEditor 5.1.2 where the line number view fails to update correctly under certain conditions.



5.1.2 (707)
--------------------------

### Improvements

- Switch the localized block name and the block name defined in Unicode by clicking the block name in the character inspector.
- Revert the steppers to the font setting controls in the Appearance settings pane.
- Remove the Script menu from the context menu.
- Add a help tag for the “Show Sidebar” menu item when the command is unavailable.
- Update the CSS syntax to add new keywords (thanks to Karam!).
- Update the Swift syntax to support highlighting regex literals.
- Update the JSON syntax to include the .xcstrings file extension.


### Fixes

- Fix an issue where multiple text insertion points persist as visible even when the document is made not editable.



5.1.1 (705)
--------------------------

### Improvements

- Just move the insertion point instead of inserting a new one when typing a quotation mark just before a quotation mark automatically inserted by the “Automatically insert closing brackets and quotes” option.
- Update the Unicode block name list.


### Fixes

- Fix an issue in the What’s New window where an unwanted beta label would appear even in stable versions.



5.1.0 (703)
--------------------------

### Improvements

- Update the Fortran syntax to include the .cuf file extension.



5.1.0-rc (700)
--------------------------

### New Features

- Add the PowerShell syntax.


### Improvements

- Update the PHP syntax.
- Declare CotEditor can handle folders.
- [dev] Update Yams from 5.3.0 to 5.3.1.
- [non-AppStore ver.] Update Sparkle from 2.6.4 to 2.7.0.


### Fixes

- Fix an issue in the AppleScript support where the `print` command is ignored.
- Fix an issue where the Settings window is not accessible from the Window menu.
- Fix an issue on macOS 15 where newly created documents are mispositioned when the frontmost document is tiled.



5.1.0-beta.3 (698)
--------------------------

### New Features

- Add the “text replacement” option to the Mode settings to disable the future in the editor.


### Improvements

- Show an alert and abort the import of setting files if they are not in a valid format.
- Update the JSON syntax to include the .jsonl file extension.
- Improve the stability.
- [experimental] Improve the syntax highlighting algorithm for inline comments.
- [dev] Update Yams from 5.1.3 to 5.3.0.
- [beta.2] Update the Dutch localization for strings added in CotEditor 5.1.0.


### Fixes

- Fix an issue in the Appearance settings pane where the alert about potential non-monospace fonts keeps appearing even after changing only the font size.



5.1.0-beta.2 (696)
--------------------------

### New Features

- Display Finder tags in the document inspector and the file browser.


### Improvements

- [beta] Update the Korean and Polish localizations for strings newly added in CotEditor 5.1.0.


### Known Issue

- The text added in CotEditor 5.1.0 are not localized yet in Dutch.



5.1.0-beta (694)
--------------------------

### New Features

- Append the nearest unique ancestor folder name to the document title if multiple documents with the same name are opened.
- The new “prevent editing” command that prevents documents from being unintentionally edited.
- Introduce the new AppleScript parameter `editable` to document objects.
- Introduce the `--readonly` (`-r`) option to the `cot` command-line tool to open documents as read-only.
- Read input from the standard input when the `cot` command-line tool is used with the `-` option.


### Improvements

- Improve the VoiceOver support.


### Fixes

- Fixed an issue in CotEditor 5.0.8 where the file path argument passed to CotEditor scripts is percent-encoded.


### Known Issue

- Some text is not localized yet in Dutch, Korean, and Polish.



5.0.8 (692)
--------------------------

### Improvements

- Add missing localization of Unicode block names.


### Fixes

- Fix an issue where the text fields in the syntax editor could restore the contents after the input under certain conditions.
- Fix a potential crash that rarely occurs when interacting with the Quick Action bar.



5.0.7 (690)
--------------------------

### New Features

- Add `title` and `timestamp` options to the AppleScript’s `write to console` command.


### Improvements

- Provide more Unicode information about the selected character in the document inspector.
- Prevent the console from hiding when the app goes into the background.
- Optimize the file browser’s performance when expanding a folder containing a large number of items.
- Improve the trimming of whitespace in the extracted outline labels.
- Modify the syntax highlighting rule to extract strings in the form of “begin-end” string pairs, even if one of those is escaped.
- Adjust the editor’s initial scroll position.
- [trivial] Update the layout of the Donation settings pane.
- [trivial] Update the User Guide.


### Fixes

- Fix an issue that the shortcut key for cycling through windows was not functioning correctly for certain input modes.
- Fix an issue that the end point of a selection shifted after a hanging indent on a wrapped line when the line endings are CRLF and the selection is expanded using the `Shift`-`↑` or `Shift`-`↓` shortcuts.
- Fix an issue that the insertion point rarely jumped to the nearest outline item when the outline inspector is shown.



5.0.6 (688)
--------------------------

### New Features

- Display information about the selected image in the preview view for the file browser.
- Add the “Add period with double-space” option to the Mode setting options (deselected by default).
- Add the toolbar item for Writing Tools to the toolbar customization options (only for macOS 15.2 and later and when the Writing Tools feature is available).


### Improvements

- Allow insertion points only at the same number of wrapped lines by rectangular selection.
- Allow selections only at the same number of wrapped lines by selecting the column up/down.
- Update the document’s syntax based on the filename when renaming it in the file browser.
- Always open a file as a plain-text document if its file extension or filename is determined by syntaxes.
- Enhance the “Move Focus to Next/Previous Editor” commands to move the focus to the main editor if it’s outside the editors.
- Update the default keyboard shortcuts for split editor-related commands.
- Replace the “Open with External Editor” button with the “Show in Finder” button when the file selected in the file browser is alias.
- Display the icon preview for a symbolic link selected in the file browser instead of showing a dialog.
- Expand the draggable area in the Quick Action bar.
- Update the JavaScript syntax to include the .mjs file extension.
- [trivial] Enable the sudden termination feature provided by the macOS system.
- [trivial] Make the close window in the About window the standard size.
- [trivial] Update the User Guide.
- [dev] Update the build environment to Xcode 16.2 (macOS 15.2 SDK).


### Fixes

- Fix an issue that the application no longer automatically terminated when the app went to the background without open documents.
- Fix an issue that the file browser showed nothing for folders containing broken links.
- Fix an issue that the application became unresponsive when renaming a filename in the file browser that contained newline characters.
- Fix an issue that the printing area in the print preview was trimmed when line numbers were drawn.
- Fix an issue that the window height unexpectedly shrunk when opening a document with the vertical layout orientation from the file browser.
- Fix an issue in the `cot` command that the `--wait` option relaunched CotEditor when the app was quit instead of closing the document.
- Fix an issue in the `cot` command that the `--wait` option did not wait for the window to close if the application was not yet launched when running the command.
- Fix an issue that undetermined text conversions were ignored when submitting in some dialogs.
- [trivial] Fix the Help button in the Donation settings pane.



5.0.5 (686)
--------------------------

### Improvements

- [trivial] Omit commands in the Debug (ladybug) menu from the results of the Quick Action bar.


### Fixes

- Fix crashing when opening the Print dialog.



5.0.4 (684)
--------------------------

### Improvements

- Update the Swift syntax to add `@Bindable`, `@ViewLoading`, and `@WindowLoading` attributes.
- [trivial] Rename “Move Focus” commands.
- [trivial] Focus on the first input field when opening a dialog.


### Fixes

- Fix an issue in the file browser that the actions in the Add button were disabled when the focus is out of the browser.
- Fix an issue that the document window position was not saved in some cases.
- Fix insertion format editors’ behavior in the Snippet settings.
- [trivial] Fix links in the Licenses pane in the About window.



5.0.3 (682)
--------------------------

### Improvements

- Expand folder items by double-clicking a folder row in the file browser.
- Directly open .plist files from the file browser instead of previewing.
- Improve alias file handling in the file browser.


### Fixes

- Fix an issue that the application crashes when an editor is opened while the Font window appears.
- Fix an issue that the document window size was not properly saved.



5.0.2 (680)
--------------------------

### New Features

- Add Polish localization (Thanks to Rafał Kopicki!).


### Improvements

- Add .awk extension to file types treaded as CotEditor script.
- Adjust the layout of the file preview view.
- Update the Swift syntax to add `@Test` and `@Suite` attributes.


### Fixes

- Fix an issue that the file encoding menu disappeared from the status bar.
- Fix an issue that document windows were not properly initialized when the windows minimized on launch.
- Fix an issue in the file browser that duplicate folders were displayed after renaming a folder.
- Fix an issue in the file browser that some actions for the root folder were incorrectly disabled.
- Fix an issue in the Snippets settings pane that changes of insertion formats were not saved.
- Fix an issue that the initial visibility state of the navigation bar was reversed.
- [trivial] Fix an issue that the action name of the “Shift Left” action is not noted in the undo history.



5.0.1 (678)
--------------------------

### Improvements

- Add the “Open as Plain Text” button to the preview view for the file browser.
- Open a file selected in the file browser as plain text when the default app set in the Finder for it is CotEditor.
- Optimize the performance of the file browser.


### Fixes

- Fix an issue on macOS 14 that the app crashed when opening a folder containing archive files.
- Fix an issue that the file/folder in the file browser was not removed even when it was deleted in the actual file storage.
- Fix an issue that the indent style detection was not applied.
- Fix the display of the What’s New window in CJK localizations.
- [AppStore ver.] Fix an issue that the Donation settings pane displayed an unnecessary alert when the user cancels an action.



5.0.0 (674)
--------------------------

### Improvements

- Enable opening the Color Code window even without any documents.
- [rc][trivial] Adjust the window's appearance.
- [rc][trivial] Tweak localization.


### Fixes

- Fix an issue that the English labels in the issue report template were unnecessarily localized.
- [rc] Fix an issue that variables in the Snippet settings are not highlighted.
- [rc][trivial] Fix a service name.



5.0.0-rc (666)
--------------------------

### New Features

- Support Writing Tools with Apple Intelligence.


### Improvements

- [beta] Adjust the window's appearance.
- [beta] Show icon image for alias files selected in the file browser.
- [beta] Add the Czech, Dutch, French, and Portuguese localizations for strings newly added in CotEditor 5.0.0.


### Fixes

- [beta] Fix an issue that UNIX scripts failed to get the document object displayed in a window with the file browser.
- [beta.3] Fix an issue that the editor unwontedly selects the nearest outline item when the Outline inspector is shown.



5.0.0-beta.3 (664)
--------------------------

### New Features

- [beta] Preview non-plain-text files.
- [beta] Support Quick Look in the file browser.


### Improvements

- Update C++ syntax (Thanks to Léo Natan!).
- [beta] Add the Sidebar submenu to the View menu.
- [beta] Improve the VoiceOver support in the sidebar.
- [beta] Enable selecting multiple items in the file browser.
- [beta] Restore the filename to the original one when the filename edited in the file browser is invalid.
- [beta] Avoid opening with CotEditor itself when performing the “Open with External Editor” command in the file browser.
- [beta] Copy dropped files when pressing the Option key while dragging files to the file browser.
- [beta] Improve the file drop feedback animation of the file browser.
- [beta] Add the Simplified Chinese, Traditional Chinese, Italian, Korean, Spanish, and Turkish localizations for strings newly added in CotEditor 5.0.0.
- [beta][dev] Update the build environment to Xcode 16.0 RC.


### Fixes

- [beta] Fix an issue that dropping files to the editor inserted nothing.
- [beta.2] Address an issue on macOS 14 that folders in the file browser unwontedly closed when the user changed the folder structure.


### Known Issues

- Strings newly added are not yet localized in Czech, Dutch, French, and Portuguese.



5.0.0-beta.2 (663)
--------------------------

### Improvements

- [trivial] Better numbering when adding a new setting whose name is the same as an existing one.
- [beta] Add the Duplicate and Share actions to the context menu for the sidebar.
- [bata] Make items in the sidebar copyable.
- [beta] Restore the expansion state of folders in the sidebar from the last session.
- [beta] Improve hidden file handling in the sidebar.
- [beta] Improve alias file handling in the sidebar.
- [beta] Enable opening directories from the `cot` command.
- [beta] Change the subtitle of document windows with the sidebar from the relative file path to the filename.
- [beta][trivial] Adjust layout of the About and What's New panels.


### Fixes

- [beta] Fix an issue that the editor unwontedly selects the nearest outline item when the Outline inspector is shown.
- [beta] Fix an issue that the window subtitle did not update when the document was renamed.
- [beta] Address an issue on macOS 14 that the folder tree unwontedly closed when the user changed the folder structure.



5.0.0-beta (661)
--------------------------

### New Features

- Support __macOS Sequoia 15__.
- Folder Navigation: Open folders in CotEditor and browse their contents from the new sidebar to switch documents.
- [AppStore ver.] Now, the user can donate to the CotEditor project via in-app purchase in the new Donate settings pane.
- Add new “Select Enclosing Symbols” and “Split Selection by Lines” commands to the Edit > Select menu.
- Add new “Show in Finder” command to the File menu.
- Add new “Create Document in CotEditor” shortcut action.
- Add the “Highlight” color to the CotEditor theme format.
- Support the alpha channel for the current line in theme settings.
- Add Korean localization (Thanks to Minseok Choe!).
- Add Assembly syntax.
- Add new “Resinifictrix (Dark)” theme.


### Improvements

- Change the system requirement to __macOS Sonoma 14 and later__.
- Add “Select Column Up/Down“ commands to the Edit > Select menu.
- Change the unit of character ranges handled in CotEditor Scripting for AppleScript from UTF-16 based to the Unicode grapheme cluster-based (This is to follow the specification change in AppleScript 2.0 introduced in Mac OS X 10.5).
- Improve VoiceOver support in the Quick Action bar.
- Update all the bundled themes to have the custom highlight color and a 70% opacity in the current line highlight.
- Improve the performance of counting values in the editor for the status bar and the document inspector to avoid flicking of the display.
- Set the editor's kerning to zero when a monospaced font is set via the Font panel.
- Update the `cot` command to ignore piped text if a file to open is specified.
- Rename the “New CotEditor Document with Selection” service with “New CotEditor Window Containing Selection.”
- Ignore empty outline items.
- Avoid the theme loading error when a value is missing.
- Make more table columns sortable.
- Update the Swift syntax.
- Improve the User Guide contents.
- Remove Solarized themes from the bundle.
- [trivial] Organize the structure of the Edit menu.
- [trivial] Suppress display of the “Extracting” message on the navigation bar in instantaneous parsing.
- [trivial] Make names of code contributors in the About window selectable.
- [dev] Update the build environment to Xcode 16 (Swift 6, macOS 15 SDK).
- [dev] Migrate all unit tests to Swift Testing.
- [dev] Migrate the navigation bar and the Snippets settings view to SwiftUI.
- [dev] Update Yams from 5.1.2 to 5.1.3.


### Fixes

- Fix an issue that the rectangular selection cannot stop the selection just until the second line from the end.


### TODO

- Improve Assembly syntax.
- Localize strings added.



4.8.7 (657)
--------------------------

### Improvements

- Change to disable the smart quotes option in the Mode settings by default.
- Draw invisible operators (U+2061, U+2062, U+2063, and U+2064) as invisible control symbols.
- Update the Lisp, Lua, Scheme, and Tcl syntaxes to update interpreters (thanks to Renfei!).
- [non-AppStore ver.] Update Sparkle from 2.6.3 to 2.6.4.


### Fixes

- Fix an issue that a document kept in the Dock was not brought to the front on the reopen event even though no documents were displayed.
- Fix an issue that the line number view went under the toolbar when the text orientation was vertical and the navigation bar was hidden.
- Fix the view layout in the Quick Action bar.
- Fix a potential memory leak.



4.8.6 (655)
--------------------------

### Implements

- Update the Markdown syntax to fix highlighting strikethrough.
- Disable color wells in the theme editor when they use the system color.
- Improve the User Guide contents.
- [non-AppStore ver.] Update Sparkle from 2.6.2 to 2.6.3.


### Fixes

- Fix an issue that a saved document could not revert to the horizontal text orientation when it was saved once as a vertical text document.
- Fix a trivial memory leak in the line ending menu (thanks to Yoshimasa Niwa).



4.8.5 (653)
--------------------------

### New Features

- Add jq Syntax.


### Improvements

- Improve the file path display in the document inspector.


### Fixes

- Fix an issue that the application crashed by opening the Appearance settings pane when the font the user set did not exist.
- Fix an issue in the syntax editor that the Values pane was missing in the highlighting list in the sidebar.
- Fix an issue in the Save dialog that the file extension disappeared when the user selected the Hide Extension option.
- Fix an issue that the font fields in the Appearance settings pane could unnecessarily shrunk with specific fonts.



4.8.4 (651)
--------------------------

### Improvements

- Revert the “Do Nothing” option, which was once deprecated on CotEditor 4.6.0, for the “When nothing else is open” setting.
- Enable toolbar/menu items for the document editor even when the focus is on the inspector.
- Display a warning on setting renaming if the name contains “:”.
- [dev] Update the build environment to Xcode 15.4.


### Fixes

- Fix an issue on CotEditor 4.8.3 that The Open dialog always shows up on launch despite the setting when the “Reopen windows from last session” option is disabled.
- Fix an issue on the version browsing that document windows could become occasionally transparent.
- Fix a typo in the Czech localization.



4.8.3 (649)
--------------------------

### New Features

- Add the “Show in Finder” button next to the file path in the document inspector.


### Improvements

- Display the current editor mode in the document inspector.
- Use more appropriate system color for the selection background when dark mode or not differs between the editor and theme.
- Improve VoiceOver support.
- Deprecate exact recalculation of insertion points when documents are updated by external processes to improve application stability.
- Improve stability of application launch behavior.
- Update the Markdown syntax to distinguish strong emphases (`strong`) from normal emphases (`em`).
- [non-AppStore ver.] Update Sparkle from 2.6.0 to 2.6.2 (security update).


### Fixes

- Fix an issue that the application could not respond to by updating a relatively large document from external processes.
- Fix an issue that the application unwontedly copied the bundled theme setting files to the user domain.
- Fix an issue that the Share command was not available in the theme setting list.
- Fix the layout of the Go To Line dialog.
- Fix an incorrect label in the theme editor in the Appearance settings.



4.8.2 (647)
--------------------------

### Improvements

- Disable smart dash for the General mode by default.
- Update the JavaScript, Swift, and TOML syntaxes.


### Fixes

- Fix an issue on CotEditor 4.8.1 that opening some kinds of documents took a long time.
- Fix an issue on CotEditor 4.8.0 that the editor displayed nothing when the mode setting is empty.
- Fix an issue on CotEditor 4.8.0 that custom syntaxes could be ignored when it contains ill-formed file mapping definitions.
- Fix syntax highlighting for simple words.



4.8.1 (644)
--------------------------

### Improvements

- Add context menus for text size change to the tables in the outline inspector and find the result view.
- Improve the algorithm to parse syntax highlighting with simple words.
- Improve error message when failing to load setting files.
- Improve general stability.


### Fixes

- Address an issue on CotEditor 4.8.0 that the application could crash while updating the editor counts.
- Fix an issue on CotEditor 4.8.0 that custom syntaxes could be empty when it contains ill-formed definitions.
- Fix an issue on CotEditor 4.8.0 that the editor's kerning did not set to zero despite the font type being monospaced.
- Fix an issue on CotEditor 4.8.0 that some steppers in the Settings window were placed on the opposite side.
- Fix an issue that the application crashed when the sort key in the Sort by Pattern contains only whitespace.
- Fix an issue that the current line highlight did not appear when the insertion point was located at the last empty line.
- Fix an issue that the same instance highlight remains under specific conditions.



4.8.0 (642)
--------------------------

### Fixes

- [rc][trivial] Fix Dutch localization.



4.8.0-rc (639)
--------------------------

### New Features

- Add Dutch localization (thanks to Yasin Gunaydin!).


### Improvements

- Change the line count behavior to ignore the new line character at the end of the last line.
- Improve selected line number emphasis in the line number view by the vertical text orientation.
- Change the filter field for the outline inspector to apply the selection of the filter history immediately.
- Remove wrapped line marks in the line number view.
- Update the Makefile syntax to add “GNUmakefile” to the filename mapping.
- [trivial] Remove the dialog urging to restart the application by changing the “Reopen windows from last session” option in the General settings pane.
- [dev] Update Yams from 5.1.0 to 5.1.2.
- [beta][trivial] Fix the text size of the syntax editor’s sidebar.


### Fixes

- Fix an issue on the filter field for the outline inspector that the filter history was initially empty.
- [beta] Fix an issue in the syntax editor that the latter part of regular expression patterns can be invisible when they have regular expression syntax errors.



4.8.0-beta.3 (637)
--------------------------

### Improvements

- Renew the “About CotEditor” window.
- [non-AppStore ver.] Update Sparkle from 2.5.2 to 2.6.0.
- [dev] Update Yams from 5.0.6 to 5.1.0.
- [dev] Migrate the status bar to SwiftUI.
- [beta] Restore the last syntax editor size within a session.


### Fixes

- [beta] Fix a memory leak.
- [beta] Fix an issue on macOS 14 that multiple cursors in editors were not drawn when the editor becomes active again.
- [beta] Add missing localization.



4.8.0-beta.2 (635)
--------------------------

### Fixes

- [beta] Fix an issue that the “Suggest completions while typing” option in the Mode settings was wrongly stored.



4.8.0-beta (633)
--------------------------

### New Features

- Add the Mode feature that enables altering the editor’s behavior depending on the document’s syntax (Go Settings > Mode settings pane to set).
- Add the Restore Defaults button to the File Drop settings.


### Improvements

- Improve the look and feel of the syntax editor.
- Make the encoding priority view undoable.
- Disable the pane transition animation in the Settings window when the user sets to reduce motion in the system Accessibility settings.
- Deprecate “Append a space to comment delimiter” option.
- [trivial] Enable delete selected separators in the encoding priority view with the Delete key.
- [trivial] Avoid users using reserved syntax names.
- [dev] Migrate the settings window and syntax editor to SwiftUI.
- [dev] Migrate all localizable strings to String Catalog.
- [dev] Update the build environment to Xcode 15.3 (Swift 5.10).


### Fixes

- Fix an issue that the application crashed when trying to share a custom syntax.
- Fix an issue on macOS 14 that multiple cursors in editors remained when they are inactive.
- Fix missing localizations.


### Known Issues

- Some new strings in the syntax editor and Mode settings are not localized yet in Czech.



4.7.4 (630)
--------------------------

### New Features

- Support the alpha channel in theme settings (Custom themes using alpha channel are not compatible with CotEditor prior to version 4.7.4).
- Make sections in the document inspector collapsible.
- Add “Hexadecimal with Alpha” format to the Color Code window.
- Add Czech localization (Thanks to Martin Růžička!).


### Improvements

- Tweak the background color of the “Anura (Dark)” theme.
- [dev] Migrate all the inspector panes to SwiftUI.


### Fixes

- Fix an issue on macOS 13 that the stepper in the custom tab width view worked only once.
- Fix an issue that the character code point displayed in the document inspector could be broken when the application is localized.
- Fix an issue that the custom font size for the outline inspector was not fully applied.
- Fix an issue that the menu of the Syntax toolbar item could also check the previous one.
- Fix an issue that a part of the Portuguese localization was not applied.
- Fix Italian localization (Thanks to Roccobot and DAnn2012!).



4.7.3 (627)
--------------------------

### Improvements

- When the file encoding is incompatible with the document contents, display a notification instead of silently overwriting the document file with lossy data in autosaving until the user explicitly allows it.
- Suppress displaying the dialog for saving in an incompatible encoding when the user once allowed it.
- Update the C syntax to improve highlighting numbers.
- Deprecate the future to interpret `Shift_JIS` as Shift JIS or Shift JIS X0213 according to the user's priority setting when referring to encoding declarations in documents in encoding detection.
- Improve stability.
- [trivial] Improve alert messages for incompatible text encodings.


### Fixes

- Fix an issue that the application crashed when editing a specific pattern of color code.
- Fix an issue that the outline inspector was empty and not updated under certain circumstances.
- Fix an issue that the encoding reinterpretation option dialog is not displayed when the user changes a document encoding to UTF-8.
- Fix an issue that the saved user syntax definition file was not deleted when a customized syntax was restored to the default.
- Fix an issue that the initial window size on the first launch was too small.



4.7.2 (625)
--------------------------

### Improvements

- Improve stability.
- [trivial] Deprecate the feature for theme/syntax settings to delete a setting by swiping on the setting name in Settings.
- [non-AppStore ver.] Update Sparkle from 2.5.1 to 2.5.2.


### Fixes

- Fix an issue that the application crashed when trying to convert the encoding of an unsaved document to one incompatible with the contents.
- Fix an issue that the application could not open a document containing a specific pattern of letters.
- Fix an issue that the validation error message in the syntax editor did not change even when errors exist.
- Fix an issue that the incompatible characters list did not update under the specific condition.
- Fix a possible crash when opening a corrupt file.
- Fix a possible crash when moving the cursor in the editor.



4.7.1 (623)
--------------------------

### New Features

- Add “Join Lines” command to the Text menu.


### Fixes

- Fix an issue on CotEditor 4.7.0 that documents did not update when the file was modified by a command-line process.
- Fix an issue on CotEditor 4.7.0 that the last letter of some script names with a period could be wrongly interpreted as shortcut keys.
- Fix an issue on CotEditor 4.7.0 that some kinds of actions, such as scripts, could not performed via the Quick Action bar.
- Fix an issue on CotEditor 4.7.0 that the Quick Actions bar dropped to draw the Shift key in some shortcuts.



4.7.0 (621)
--------------------------

### Improvements

- [dev] Update the build environment to Xcode 15.1.
- [rc.2] Remove hidden actions from Quick Action candidates.
- [rc.2] Update the User Guide.



4.7.0-rc.2 (617)
--------------------------

### New Features

- Add `--syntax` (`-s`) option to the `cot` command-line tool to set desired syntax to the documents just opened.


### Improvements

- [trivial] Add shortcut symbols for special keys not on common keyboards.
- [rc] Display the Globe symbol instead of “fn” for shortcuts in the Quick Action bar if the user keyboard is supposed to have the Globe key (thanks to Katsumi Kishikawa!).



4.7.0-rc (615)
--------------------------

### Improvements

- Enable the “Input Backslash” and “Input Yen Mark” menu commands in all text fields in the application.
- [trivial] Add a stepper to the custom tab width sheet.
- [beta] Use the same shortcut symbols as the menu display in the Quick Action bar.
- [beta] Adjust the layout of the Quick Action bar.
- [beta.2] Update some localized text.


### Fixes

- Fix an issue that the “unescape replacement string” option could not unescape consecutive backslashes correctly.
- [beta] Fix an issue that some active actions were not listed in the Quick Action bar.
- [beta] Fix an issue that keyboard shortcuts that include the Globe/fn key were not displayed in the Quick Action view.



4.7.0-beta.2 (613)
--------------------------

### Improvements

- Optimize the performance of the normalization of inconsistent line endings.
- Improve stability.
- [trivial] Increase the default font size and line height.
- [beta] Add device name to quick actions related to Continuity Camera.
- [beta] Localize strings added on CotEditor 4.7.0.


### Fixes

- [beta] Fix an issue that disabled menu items were listed as the quick action candidates.
- [beta] Fix an issue that some actions were not performed properly by the Quick Action.



4.7.0-beta (611)
--------------------------

### New Features

- Add Quick Action bar which can launch by the Command-K keys.
- Insert scanned text in a photo taken by iPhone or iPad.


### Fixes

- Fix an issue that the Forward Delete key could not be correctly assigned as a custom shortcut key.


### TODO

- Some text are not localized yet.



4.6.5 (601)
--------------------------

### Improvements

- Optimize the performance of the incompatible character scan.
- [trivial] Add help tags to font fields in the Appearance settings pane.
- [dev] Migrate the custom sort pattern view to SwiftUI.


### Fixes

- Fix an issue that changes in the multiple replacement definition editor did not save.
- Fix an issue that the application could hang when opening a large document without line breaks.
- Fix an issue that a label was not localized.



4.6.4 (599)
--------------------------

### Improvements

- [trivial] Dim the switcher buttons in the inspector when the window is inactive.
- [trivial] Improve the style of the pop-up buttons in the print panel.
- [trivial] Adjust the layout of the regular expression syntax reference.


### Fixes

- Fix an issue that the initial width of the line number view did not grow although the document is large.



4.6.3 (596)
--------------------------

### Improvements

- Set the text kerning in the editor to zero if the font is monospaced.
- Improve localization.
- [trivial] Update the label and help tag for the Line Wrapping toolbar item.
- [non-AppStore ver.] Update Sparkle from 2.5.0 to 2.5.1.


### Fixes

- Fix an issue that the checkbox to change the background color for the current line in the Window settings did not work.
- Fix an issue that a label was not localized.
- [trivial] Fix unwanted line breaks in the character inspector.



4.6.2 (594)
--------------------------

### Improvements

- Tweak German and Japanese localization.


### Fixes

- Fix an issue that the application crashed when performing the Find All command with a specific find string.
- Fix an issue that the find result view occasionally failed to select the match in the editor by clicking a row.
- Fix an issue that the initial find window height was unwantedly expanded when the find result view had appeared in the last session.
- Fix an issue that the lines copied from the find result table could be truncated.
- Fix an issue that the Settings window disappeared when the application is inactive.
- Fix an issue that the editor did not remember the scroll position when relaunching the application.
- [trivial] Fix an issue that unwanted debug logs appeared in the Console.



4.6.1 (591)
--------------------------

### Fixes

- Fix an issue that the result of Find All did not update.
- Fix an issue that the change of the option “When nothing else is open” in the General settings was not applied.
- Fix a typo in German.
- [non-AppStore ver.] Fix the layout of the General settings.



4.6.0 (589)
--------------------------

### Improvements

- Update the Swift syntax to add keywords for Swift 5.9.
- [beta] Update the User Guide.



4.6.0-rc (587)
--------------------------

### New Features

- Copy the matched lines by selecting rows in the find result view and performing the Copy command.


### Improvements

- Improve the behavior of the find result table.
- Deprecate the option to do nothing when no document is opened on startup.
- Deprecate the option to swap `¥` and `\` keys.
- Deprecate the option to comment always from the line head (This behavior is now always enabled).
- Update the Unicode block name list for the character inspector to Unicode 15.1.0.
- [non-AppStore ver.] Update Sparkle from 2.4.2 to 2.5.0.
- [beta] Reorganize the Settings window.
- [beta] Adjust the position of the history buttons in the find panel.
- [beta] Update the User Guide.
- [beta] Update localizations.
- [beta][dev] Update the build environment to Xcode 15.


### Fixes

- Fix an issue that the Settings window was not listed in the Window menu.
- [beta] Fix an issue that the visibility of the inspector was not saved.
- [beta] Fix an issue that the font preference update was not applied immediately to opened documents.
- [beta] Fix an issue that themes did not switch by the appearance change.



4.6.0-beta.3 (585)
--------------------------

### Improvements

- Remove the Print settings in the Settings window (Instead, set print settings directly in the Print dialog).
- [beta] Adjust layout in the Settings window, Print dialog, and syntax editor.
- [beta] Update the User Guide.
- [beta] Port changes in CotEditor 4.5.9.


### Fixes

- [beta] Fix the location to display popovers.



4.6.0-beta.2 (583)
--------------------------

### Improvements

- [beta] Change the font to prefer for the editor to select from the standard, monospaced, and automatic.



4.6.0-beta (581)
--------------------------

### New Features

- Support __macOS Sonoma 14__.
- Add the “Kind” option to syntax definitions to set the syntax is for “general” or “code.”
- Add feature to set the editor font depending of the syntax kind.
- Add the monospaced font setting to the Appearance settings pane.
- Add feature to switch the monospaced/proportional font to the Fonts toolbar item.
- Add option to disable the inconsistent line endings dialog entirely (not recommended).
- Add Spanish localization (thanks to Agustin Borrego!).


### Improvements

- Change the system requirement to __macOS Ventura 13 and later__.
- Update the behavior and look of the inspector pane.
- Add “Use system color” option to the cursor color in the theme setting view.
- Update the character inspector to add labels for each item and show the Unicode version.
- Make sure to perform the automatic whitespace trimming every time before explicit saving by the user.
- Migrate the sharing interface to the modern version.
- Reorganize the Settings window.
- Add a font size field to the Print dialog.
- Deprecate the print font option in the Print settings.
- Deprecate the cursor type option.
- Deprecate the Color Code toolbar button.
- [trivial] Migrate the Opacity toolbar item to popover in macOS 14.
- [trivial] Disable the zoom button in the find & replace windows.
- [trivial] Disable the contextual menu for shortcut fields.
- [trivial] Reduce the maximum number of editors to split into.
- [trivial] Change the behavior of the duplication command for syntax definitions to just create a duplicated syntax instead of opening the syntax editor dialog.
- [trivial] Improve the behavior when selecting a row in the find result table in the Find window.
- [trivial] Rename “syntax style” with just “syntax.”
- [dev] Update the build environment to Xcode 15 Beta 8 (Swift 5.9).


### Fixes

- Fix an issue that the Share button in the Touch Bar did not work when the document was replaced with the initial empty document.


### Others

- The toolbar customization will be reset at the first launch of CotEditor 4.6.0.



4.5.9 (575)
--------------------------

### Fixes

- Fix an issue that documents could not be saved with an unknown filename extension.
- Fix an issue that the Share button in the Touch Bar did not work when the document was replaced with the initial empty document.



4.5.8 (574)
--------------------------

### Improvements

- Disable the beep sound at the end of successful replacement.


### Fixes

- Fix an issue that the rectangular selection could not add an insertion point at the empty last line.
- Fix an issue that the line was not highlighted when one of multiple insertion points locates at the empty last line.
- Fix an issue that the current line highlight did not update when some editor setting was changed.
- Workaround an issue the toggle inspector command is disabled in macOS 14.



4.5.7 (573)
--------------------------

### Improvements

- Improve the stability of document saving and deletion.
- [non-AppStore ver.] Update Sparkle from 2.4.1 to 2.4.2.
- [dev] Update Yams from 5.0.5 to 5.0.6.


### Fixes

- Fix an issue that the Script menu in the contextual menu was unwontedly labeled “NSMenuItem.”



4.5.6 (571)
--------------------------

### Improvements

- Enable changing text size in Console.
- Rename “Protocol Buffer” style with “Protocol Buffers.”


### Fixes

- Fix an issue that the script console just displayed “CotEditor.ScriptError error 0.” instead of the actual message of the standard error.
- Fix an issue that the Scripts menu listed the files without extension as scripts.
- Fix an issue that the size of line numbers did not update even when the editor’s font size was changed.



4.5.5 (569)
--------------------------

### New Features

- Add Mojo syntax style.


### Fixes

- Workaround an issue that “Keep on Top” feature blocks all windows from coming back to the foreground in the Stage Manager mode.
- Fix an issue that invalid style names could be registered.
- Fix an issue in the Key Binding settings that the documents currently opened were wrongly listed in the Window menu.
- Fix an issue that the context menu in the editor didn't contain the script menu when the root scripts folder has only folders.
- Fix missing localization.



4.5.4 (566)
--------------------------

### Improvements

- Add “Keep on Top” toolbar item.
- Restore the “Keep on Top” state of windows from the last session.


### Fixes

- Fix an issue in CotEditor 4.5.3 that some menu command shortcuts could not be customized.



4.5.3 (564)
--------------------------

### New Features

- Add “Keep on Top” command in the Window menu.


### Improvements

- Remove the Open command in the Dock menu.
- Enable the ToC button in Help Viewer.
- Update Swift syntax style to fix highlighting with `/` characters.
- [non-AppStore ver.] Update Sparkle from 2.4.0 to 2.4.1.


### Fixes

- Fix an issue that the application crashed by typing the ¨ key with a Norwegian keyboard.
- Fix an issue that menu command shortcuts could be unwontedly localized according to the user's keyboard layout.
- Fix an issue that the editor font did not apply to documents created via Services.
- Fix an issue that the application could crash by opening the About window in some specific conditions.



4.5.2 (562)
--------------------------

### New Features

- Add BBCode syntax style.


### Improvements

- Update Swift syntax style to add some keywords.
- [non-AppStore ver.] Update Sparkle from 2.3.2 to 2.4.0.
- [dev] Update the build environment to Xcode 14.3 (Swift 5.8).


### Fixes

- Workaround an issue on macOS 12 that the application uses 100% CPU after searching files in the Open dialog.
- Fix typos in German and Italian localizations (thanks to Jan Richter and DAnn2012!).



4.5.1 (560)
--------------------------

### Improvements

- Scroll the editor to make the remaining cursor visible when canceling the multi-cursor editing mode.


### Fixes

- Fix the application could crash when the Invisibles toolbar item is displayed.
- [trivial] Fix the shortcut key display for the mic key in the Key Bindings pane.



4.5.0 (558)
--------------------------

- No change.



4.5.0-rc (557)
--------------------------

### Improvements

- Change counting characters/lines/words to count all elements in multiple selections.
- Change the threshold to trigger the automatic completion to 3 letters to optimize calculation time by large documents.
- Allow `_` as a character for completion candidates.
- Synchronize the visibility of all navigation/status bars in the application.


### Fixes

- Fix an issue that the application did not terminate when no documents exist and the application goes background.
- Fix an issue on macOS 12 that the buttons at the bottom were not aligned.



4.5.0-beta.2 (555)
--------------------------

### New Features

- Add a new scope “syntax style” to the snippet feature to perform snippets only in a specific syntax style.
- Add a new variable “selection” to the snippet feature to place the currently selected text to the inserted text.


### Fixes

- Fix an issue in the search window that an error dialog for invalid regular expression appeared even on incremental search.
- [beta] Fix an issue that the snippet setting was occasionally not saved.



4.5.0-beta (553)
--------------------------

### New Features

- Renew the snippets feature to enable naming it, changing the order, and performing from the menu.
- Add the Insert Snippet submenu to the Text menu.
- Enable the character inspector to inspect more information about each Unicode scalar that makes up a character.


### Improvements

- Reconstruct the Snippets (ex. File Drop) and Key Bindings panes in the Settings window.
- Allow single function keystroke for a keyboard shortcut.
- Optimize the performance of text editing while URL linking is enabled.
- Update item order of the Edit menu.
- Make filter highlights of the outline list more legible in the Dark Mode.
- Update Swift syntax style to add keywords for Swift 5.8.
- Deprecate the Insert Encoding Name command (use AppleScript instead).
- Update the User Guide.
- [non-AppStore ver.] Update Sparkle from 2.3.1 to 2.3.2.
- [dev] Update Yams from 5.0.4 to 5.0.5.


### Fixes

- Fix an issue that the Replace button in the Find window did not select the next match.
- Fix an issue that all URL links were removed when an external process updated the document.
- Fix the redo action label for the line endings conversion and file encoding change.



4.4.5 (550)
--------------------------

### New Features

- Add “last modified date” option to the print header/footer options.
- Add “Ignore” option to the inconsistent line endings alert.


### Improvements

- [dev] Update Yams from 5.0.3 to 5.0.4.


### Fixes

- Fix an issue that the print Header/Footer alignment options did not match the selected settings.
- Fix an issue that some shortcut keys could be used for menu key binding customization without warning even when they are used for existing commands.
- Fix missing localization in the Find window.
- Remove outdated descriptions in the Key Bindings pane.



4.4.4 (548)
--------------------------

### Improvements

- Optimize the performance of the Find/Replace All command.
- Add visual feedback that the search reached the end.
- Enable walking through all the controls in the Find window by the Tab key.
- Update C++ syntax style to fix attributes highlight (thanks to Luke McKenzie!).
- Deprecate the Find Selected Text command.
- [trivial] Reset custom shortcuts for the find commands.
- [non-AppStore ver.] Update Sparkle from 2.3.0 to 2.3.1.


### Fixes

- Fix an issue that found string in the editor was occasionally not focused.
- Fix an issue that multiple replacements were not performed if the document is empty.
- Fix an issue that the Find window expanded unnecessarily in some specific conditions.
- Fix a label in the Advanced Find Options view.



4.4.3 (546)
--------------------------

### Improvements

- Optimize performance of find/replace with large documents.
- Display the concrete progress of the find/replace task in the progress dialog.
- Draw link underlines on the left side by the vertical text orientation.
- Update the Unicode block name list for the character inspector from Unicode 14.0.0 to Unicode 15.0.0.
- Deprecate the option to keep the progress dialog for find/replacement after finishing the task.
- Deprecate the option not to select the next match after the replacement when clicking the Replace button in the Find window.
- [trivial] Make the target document the key window when selecting a matched line in the find result view.
- [trivial] Tweak the style of headings in menus.
- [trivial] Tweak the setting summary display in the Print dialog.
- [dev] Migrate the most of sheets and popovers to SwiftUI.


### Fixes

- Fix an issue on macOS 13 the total page did not update when changing the print scope option to “Selection in CotEditor” in the Print dialog.
- Fix an issue that timestamps in the Console window do not reflect the local time zone.
- Fix an issue that the right-to-left writing direction option for new documents was not applied.
- Fix an issue that the regular expression pattern was wrongly highlighted in a specific condition.
- Fix an issue that the regular expression find/replace was not performed if the document is empty.
- Fix an issue that the advanced options view in the find panel could display multiple times when clicking the button repeatedly.
- Fix the drawing of the editor opacity toolbar item when collapsed.



4.4.2 (544)
--------------------------

### Improvements

- Update Ruby syntax style (thanks to kojix2!).


### Fixes

- Fix an issue on macOS 13 that the table in the Multiple Replace dialog was corrupted when switching the set.
- Fix an issue that a filename extension was appended to the file by saving even when the syntax style has no extensions.
- Fix an issue that the line number view did occasionally not widen even when the number exceeds 4 digits.
- Fix an issue that an unwanted extra blank document was created when creating a new document with the selection by Services under specific conditions.
- Fix an issue that the scripting result could be corrupted under some specific conditions.



4.4.1 (542)
--------------------------

### Improvements

- Rename the Highlight command to Highlight All.
- Tweak CotEditor's setting view in the Print dialog.
- Update Markdown syntax style to highlight code blocks with indentation (Thanks to Rafael Viotti!).
- [trivial] Improve the text selection behavior with key bindings.
- [trivial] Disable the Select All command when no documents are available.


### Fixes

- Fix an issue on macOS 13 that the Find All button in the find panel was not localized.
- Fix an issue on CotEditor 4.4.0 that `contents of selection` of a document object returned its entire contents.
- Fix an issue that the application could hang up when the insertion point moved over invisible control characters by the Control-Shift-arrow keys.
- Fix an issue that the last of multiple insertion points locates at the end of the document was not drawn.
- Fix an issue that the insertion point immediately exited automatically closed quote marks when the smart quote feature is enabled.
- Fix an issue that the initial window height could differ from the user-specified setting.



4.4.0 (540)
--------------------------

- No change.



4.4.0-rc (539)
--------------------------

### Improvements

- Improve the Find All button only on macOS Ventura 13 (and later) to enable performing additional commands.
- [non-AppStore ver.] Update Sparkle from 2.2.2 to 2.3.0.
- [trivial] Optimize the script menu update.
- [dev] Update the build environment to Xcode 14.1.
- [dev] Migrate helpindex to cshelpindex.


### Fixes

- [beta] Fix an issue on macOS 13 that some icons were drawn wrongly.



4.4.0-beta.4 (537)
--------------------------

### New Features

- Add syntax style for DOT (Thanks to usr-sse2!).


### Improvements

- [dev] Update the build environment to Xcode 14.1 beta 3.


### Fixes

- Port fixes in CotEditor 4.3.6.
- Fix an issue that the empty draft documents that were silently discarded remained in the Open Recents menu.
- [trivial] Fix some typos.



4.4.0-beta.3 (535)
--------------------------

### Improvements

- Add the history menu to the regular expression patterns in the pattern sort dialog.
- Improve stability.
- [trivial] Visually adjust the filter field in the outline inspector.
- [dev] Update the build environment to Xcode 14.1 beta 2.



4.4.0-beta.2 (533)
--------------------------

### Improvements

- [dev] Update the build environment to Xcode 14.1 beta.


### Fixes

- Port fixes in CotEditor 4.3.5.
- [trivial] Fix some typos.



4.4.0-beta (531)
--------------------------

### New Features

- Add Advanced Character Count feature to the Text menu.
- Dynamically prioritize the scripts in the subfolder whose name is the same as the frontmost document's syntax style when the same keyboard shortcut is determined in multiple CotEditor scripts.
- Add URL Encode/Decode commands to the Text > Transformations submenu.
- Display a dot in the window tab if the document has unsaved changes.
- Add the option to draw the separator line between the line number view and the editor.
- Add syntax style for TypeScript.


### Improvements

- Support __macOS Ventura 13__.
- Change the system requirement to __macOS Monterey 12 and later__.
- Store the state of the “Don’t ask again for this document” option for the inconsistent line endings alert and respect it for future open.
    - [for advanced users] Now you can also disable the feature entirely within the application by running the following command in Terminal: `defaults write com.coteditor.CotEditor suppressesInconsistentLineEndingAlert -bool YES`, though it is not recommended.
- Deprecate the `length` property in AppleScript (Use `number of characters of contents` instead).
- Support the split cursor for bidirectional languages in multi-cursor editing.
- Update the CotEditor's setting view in the Print dialog.
- Change the location and column count to start with zero.
- Display the error message in the pattern sort dialog if the regular expression pattern is invalid.
- Improve the algorithm to parse numbers in the Sort by Pattern command.
- Improve the algorithm of uncommenting.
- Improve the algorithm of encoding detection.
- Improve VoiceOver support.
- Deprecate the “Ignore line endings when counting characters” option.
- Deprecate the option to hide file size in the status bar.
- Remove the text length display in the document inspector.
- [trivial] Adjust ticks in the line number view for vertical orientation.
- [trivial] Save documents asynchronously.
- [trivial] Organize the editor's contextual menu.
- [trivial] Improve the basic regular expression syntax reference.
- [trivial] Improve the status bar display.
- [dev] Update the build environment to Xcode 14.0 beta 6.



4.3.6 (530)
--------------------------

### Fixes

- Fix an issue on CotEditor 4.3.5 that the option “Give execute permission” in the Save dialog was occasionally ignored.
- Fix a typo in PHP syntax style (Thanks to DAnn2012!).



4.3.5 (529)
--------------------------

### Improvements

- [non-AppStore ver.] Update Sparkle from 2.2.1 to 2.2.2.


### Fixes

- Fix an issue that memory could leak when the opacity toolbar item is used.
- Fix an issue that the option “Give execute permission” in the Save dialog was applied to the document even when the save operation was canceled.
- Address an issue since macOS 12.4 that the buttons in the Save dialog became occasionally unresponsive when the application is running in some specific Japanese environment.
- Fix an issue that memory could leak when the opacity toolbar item is used.
- Fix an issue that the column of the outline pane was narrower than the list width.
- Fix an issue that the width of the line number view was not updated when the content was changed on disk.
- Fix some typos.
- [non-AppStore ver.] Fix an issue that a message about the software update in the General pane was hidden.



4.3.4 (527)
--------------------------

### Fixes

- Fix an issue on CotEditor 4.3.3 that the window size was not inherited from the last document.



4.3.3 (525)
--------------------------

### Fixes

- Fix an issue that the application could hang up when an opened document shared in iCloud Drive was modified in another machine.
- Fix an issue that document windows sometimes did not shift the initial position from the last window.
- Fix an issue that the scrollable area of the editor in vertical layout orientation could be clipped wrongly when scaled.
- Fix an issue that some text was not localized.



4.3.2 (522)
--------------------------

### Improvements

- [non-AppStore ver.] Update Sparkle to 2.2.1.


### Fixes

- Fix an issue that the tab width setting was not respected when printing.
- Fix an issue that the length of invisible tab characters was drawn wrongly in the right-to-left writing direction.



4.3.1 (519)
--------------------------

### New Features

- Add new Shuffle command to the Text > Lines submenu.


### Improvements

- Optimize the performance for editor splitting.
- Avoid sluggishness by incremental search in large documents.
- Optimize the performance of highlighting selected text instances.
- Remove the limitation to highlight a large number of instances of the selected text.
- Scroll the editor by the Move Line Up/Down commands so that the moved lines are visible.
- Change the behavior of the metacharacter `\v` in the regular expression for text search to confirm with the current ICU specification.
- Update Swift syntax style to add keywords.
- [trivial] Update French localization.


### Fixes

- Fix an issue that memory rarely leaked on closing documents.



4.3.0 (517)
--------------------------

### Improvements

- Avoid re-parsing syntax on printing.
- Update the style of the search progress dialog.
- [trivial] Suppress the inconsistent line ending alert in the Versions browsing.
- [beta] Add the option to disable incremental search.
- [beta] Optimize the performance of the incremental search.



4.3.0-rc (515)
--------------------------

### Improvements

- [beta] Suppress the “not found” beep sound on incremental search.
- [beta] Update Swift syntax style to add `swift` interpreter.
- [beta][trivial] Change the threshold to display a large document alert.
- [beta][trivial] Tweak parsing syntax highlight.


### Fixes

- Fix an issue that the application could become unresponsive when trying to show the file mapping conflicts.



4.3.0-beta (513)
--------------------------

### New Features

- Incremental search in the Find window.


### Improvements

- Drastically improved the performance of syntax highlighting on large documents so that no rainbow cursor appears.
- Stop displaying the progress indicator for syntax highlight on large documents and apply the highlight asynchronously instead.
- Optimize the time to open large documents.
- Remove the preference option to disable syntax highlighting.
- Update Swift syntax style to support Swift 5.7.


### Fixes

- Fix an issue that the application crashed with very specific fonts.
- Fix an issue that the highlights of Find All in the editor remained even when closing the Find window.



4.2.3 (510)
--------------------------

### Improvements

- Make the font size of the find result table changeable by Command-Plus sign (+) or Command-Minus sign (-) while focusing on the result table.
- Improve the algorithm parsing comments and quoted text.
- Rewrite LaTeX syntax style to improve highlighting.
- Update the following syntax styles to fix syntax highlighting: DTD, INI, JSON, LaTeX, Markdown, PHP, Perl, reStructuredText, Ruby, Shell Script, Textile, XML, and YAML.
- Update SQL syntax style to support inline comment highlighting with `#`.
- [trivial] Change the color names in the Stylesheet Keyword color palette in the color code panel to lower case.


### Fixes

- Fix an issue by documents with the CRLF line ending that the editor did not scroll by changing selection with the Shift-arrow keys.
- Fix an issue that letters in the editor were drawn in wrong glyphs when updating the font under very specific conditions.



4.2.2 (508)
--------------------------

### Improvements

- Perform automatic indentation even when inserting a newline while selecting text.
- Alert for registering the key bindings that are not actually supported.
- Update Markdown and Textile syntax styles to fix highlighting.
- Improve the indent style detection.
- Improve traditional Chinese localization (thanks to Shiki Suen!).
- Update the User Guide.
- [dev] Update the build environment to Xcode 13.4 (macOS 12.3 SDK).
- [trivial] Change UTI for TeX document to `org.tug.tex`.


### Fixes

- Fix an issue that changing text selection with the Shift and an arrow keys could move the selection in the wrong direction.
- Fix an issue that the Outline pane occasionally showed the horizontal scroller.
- Fix an issue that the stored action names for customized key bindings were wrong.
- Fix some unlocalized text.



4.2.1 (505)
--------------------------

### New Features

- Add Chinese (Traditional) localization (thanks to Shiki Suen!).


### Fixes

- Fix an issue on CotEditor 4.2.0 that restoring documents on macOS 11.x made the application unstable.
- Fix an issue on CotEditor 4.2.0 that some snippet settings could not be inserted in a specific condition.
- Fix the help content style in Dark Mode.
- Fix the description of “Important change in CotEditor 4.2.0” in the Simplified Chinese localization.



4.2.0 (502)
--------------------------

- [rc.3][trivial] Tweak Japanese localization.



4.2.0-rc.3 (498)
--------------------------

### Improvements

- [rc] Update the User Guide.
- [rc] Update localized strings.


### Fixes

- Fix an issue that the changes of syntax styles after the launch were not applied to the file mapping.
- [rc] Fix an issue that some UI states were not restored from the last session.



4.2.0-rc.2 (496)
--------------------------

### Fixes

- [rc] Fix an issue the migration panel could not be read in the Dark Mode.



4.2.0-rc (495)
--------------------------

### New Features

- Support Handoff.


### Improvements

- Update HTML syntax style to display `hr` elements as separators in the Outline.
- Restore the file encoding to one the user explicitly set in the last session.
- Improve stability.
- [trivial] Enable the secure state restoration introduced in macOS 12.
- [dev] Update Yams from 5.0.0 to 5.0.1.
- [beta] Add the panel notifying about the line ending migration.
- [beta] Select the character in the editor also when an item already selected in the Warnings pane is clicked.
- [beta][trivial] Rename “Unicode Next Line” to “Next Line.”


### Fixes

- [beta] Fix an issue that the Line Endings submenu in the Format menu did not display minor line ending types even with the Option key.
- [beta] Fix an issue the item fields in the Outline inspector did not resize properly.
- [beta] Fix a possible issue that the initial message in the incompatible character list did not reflect the actual result.



4.2.0-beta.2 (493)
--------------------------

### Improvements

- [beta] Update the User Guide.
- [beta][trivial] Optimize the performance of the Warnings pane.


### Fixes

- [trivial] Fix an issue that the Script menu appeared in the shortcut menu even when no script exists.
- [beta] Fix an issue that UNIX scripts did not terminate.



4.2.0-beta (491)
--------------------------

### New Features

- Ability to handle documents holding multiple types of line endings.
- Alert inconsistent line endings in the document when opening or reloading.
- List the inconsistent line endings in the Warnings pane in the inspector.
- Minor line endings, namely NEL (New Line), LS (Line Separator), and PS (Paragraph Separator) are added to the line endings options (These items are visible only either when pressing the Option key or when the document's line ending is one of these).
- Add the hidden Paste Exactly command (Command-Option-V) that pastes text in the clipboard without any modification, such as adjusting line endings to the document setting.
- Add an option Selection to the Pages section in the Print dialog to print only the selected text in the document.
- Add history to the Unicode code point input.
- Export setting files, such as themes or multiple replacements, to the Finder just by dropping the setting name from the Preferences.
- Transfer settings among CotEditors in different machines via Universal Control by dragging the setting name and dropping it to the setting list area in another CotEditor.


### Improvements

- Update document icons.
- Detect the line ending in documents more intelligently.
- Display code points instead of being left blank in the incompatible character list for whitespace.
- Improve the scrolling behavior by normal size documents by enabling the non-contiguous text layout mode only with large documents.
- Optimize syntax parsing.
- Rename the Incompatible Characters pane to the Warnings pane to share the pane with the inconsistent line ending list.
- Locate the vertical scroller for the editor on the left side when the writing direction is right-to-left.
- Print the line numbers on the right side on printing if the writing direction is right-to-left.
- Adjust the vertical position of line numbers on printing.
- Indent snippet text with multiple lines to the indention level where will be inserted.
- Restore the characters even incompatible with the document encoding when restoring documents from the last session.
- Add steppers to the font setting controls.
- Prefer using .yml for syntax definition files over .yaml.
- Deprecate the feature to replace `$LN` in the outline menu template with the line number of the occurrence.
- Remove original document icons for CoffeeScript and Tcl.
- Revise text for more Mac-like expression.
- Update the User Guide.
- [trivial] Accept script files for the Script menu with an uppercased filename extension.
- [trivial] Replace `\n` with `\R` for the newline metacharacter in the Basic Regular Expression Syntax reference.
- [trivial] Tweak Anura theme.



4.1.5 (487)
--------------------------

### Improvements

- Add a temporal highlight for the current match in the editor (thanks to Ethan Wong!).
- Update HTML syntax style for better highlighting with `'` character.
- Update Swift syntax style to fix outline extraction.


### Fixes

- Fix an issue that reverting a document to one stored with a different file encoding from the current encoding could fail.
- Fix an issue that the split view did not inherit the font style and the writing direction.
- Fix an issue that the icons for Shift Left/Right commands were swapped.
- Fix an issue that the incompatible character pane did not show the message “No incompatible characters were found.” when all of the existing incompatible characters are cleared.
- [trivial] Fix localization of a Unicode block name.



4.1.4 (485)
--------------------------

### Improvements

- Update Swift syntax style to add keywords added in Swift 5.6.
- Update YAML syntax style for better coloring.
- [trivial] Improve the progress message for the Find/Replace All.
- [dev] Update the build environment to Xcode 13.3 (Swift 5.6).


### Fixes

- Fix an issue that the filename extension proposed in the Save dialog for untitled document did not reflect the latest syntax style.
- Fix an issue that the application could not open Haskell files.
- Fix a potential crash when opening files via Services.



4.1.3 (483)
--------------------------

### Improvements

- Use `python3` instead of `python` for running the `cot` command so that macOS 12.3 and later can use the Python installed with the Apple's developer tools (From macOS 12.3 on, cot command requires an additional install of python3).
- Optimize the performance of syntax highlighting.
- Update CSS and SQL syntax styles to add more coloring keywords.
- Update Python syntax style to add keywords added in Python 3.10.
- Update Markdown and SVG syntax styles for faster syntax parsing.
- Update JSON syntax style to fix coloring.


### Fixes

- Fix an issue that the text copied from the editor has always LF line endings regardless of the actual document's line ending setting.
- Fix an issue that when the option swapping ¥ and \ keys is enabled, those characters are swapped even when inputting them with Unicode code point.



4.1.2 (481)
--------------------------

### Improvements

- [dev] Update Yams from 4.0.6 to 5.0.0.
- [non-AppStore ver.] Update Sparkle to 2.1.0.


### Fixes

- Fix an issue that the editor scrolls oddly by typing the Space key if the “Link URLs in document” option is enabled.



4.1.1 (479)
--------------------------

### Improvements

- Improve Turkish localization (thanks to Emir SARI!).


### Fixes

- Fix an issue that the shortcut symbols in the Key Bindings preference pane did not display properly.



4.1.0 (477)
--------------------------

### New Features

- Introduce a new read-only AppleScript parameter `has BOM` to document objects and a new option `BOM` to the `convert` command.


### Fixes

- Fix an issue that the initial position of the side pane was occasionally stacked under the window toolbar.
- [beta] Fix initial window size.



4.1.0-beta (475)
--------------------------

### New Features

- Add a feature to filter outline items in the outline pane.
- Add an option not to draw the background color on printing.
- Add “Open Outline Menu” command to the Find menu.
- Add Turkish (thanks to Emir SARI!) and British English (thanks to Alex Newson!) localizations.
- Introduce a new AppleScript command `jump` to document objects.
- Place line number views on the right side in the editor if the writing direction is right-to-left.
- Add syntax style for Protocol Buffer.


### Improvements

- Change the system requirement to __macOS Big Sur 11 and later__.
- Update the window size setting to use the document last window size if the width/height setting in the preferences > Window is left blank (= auto).
- Allow the menu key bindings to assign a shortcut without the Command key.
- Display code points instead of left blank in the incompatible character table for control characters.
- Update Swift syntax style to add keywords added in Swift 5.5.
- Update C++ syntax style to add more filename extensions.
- Update Markdown syntax style for faster syntax parsing.
- Change the behavior to include the last empty line in the calculation when specifying lines with a negative value in the Go to Line command or via AppleScript.
- Improve the character info section in the document inspector to display the list of code points for the selected character instead of displaying only when a single Unicode character is selected.
- Update the Unicode block name list for the character inspector from Unicode 13.0.0 to Unicode 14.0.0.
- Make sure the application relaunches even if other tasks interrupt before termination.
- Improve some toolbar items to make their state distinguish even collapsed.
- Display the command name in the error message when the input shortcut for key bindings is already taken by another command.
- Improve VoiceOver accessibility.
- Update the AppleScript guide in the help.
- Improve the animation by drag & drop in tables.
- Optimize several document parses.
- [trivial] Adjust the margin of the editor area.
- [trivial] Hide the filename extension of setting files by export by default.
- [trivial] Finish key binding input in the Key Bindings pane when another window becomes frontmost.
- [trivial] Update some symbols for shortcut keys in the key binding settings.
- [dev] Update the build environment to Xcode 13.2 (Swift 5.5).
- [dev] Remove xcworkspace.
- [non-AppStore ver.] Update Sparkle to 2.0.0.


### Fixes

- Fix an issue that the current line number becomes 0 when the cursor is placed at the beginning of the document (thanks to Alex Newson!).
- Fix an issue on macOS Monterey 12 that the user custom color did not apply to the i-beam cursor for the vertical layout.
- Fix an issue in the document inspector that the character info section wrongly indicated the code point as `U+000A` for any kind of line endings, even for CR (`U+000D`) and CRLF.
- Fix an issue that the dialog urging duplication to edit locked files displayed repeatedly under specific conditions.
- Fix an issue that the slider in the editor opacity toolbar item did not work when collapsed.
- Fix an issue that the editor's opacity change did not apply immediately.
- Fix an issue that some uncustomizable menu commands were provided in the Key Bindings preference pane.
- Fix an issue in the snippet key bindings that shortcuts with only the Shift key for modifier keys were accepted though does not work correctly.
- Fix an issue that some help buttons did not work (thanks to Alex Newson!).
- Fix and minor update on localized strings.
- Fix `cot` command to work also with Python 3.
- Address an issue that the syntax highlight could flash while typing.



4.0.9 (473)
--------------------------

### Fixes

- Fix an issue that File Drop settings were not saved if both the extensions and syntax styles are for “all.”
- Fix an issue that shortcuts for snippets did not accept the Shift key with a non-letter character, such as Shift + Return.
- Fix an issue that the rainbow cursor appeared when the document has a large number of incompatible characters.
- Fix an issue that the rainbow cursor appeared when expanding the selection by “⌥⇧←” shortcut and invisible characters are contained in the new selection.
- Fix an issue that the writing direction could be changed to right to left although when the text orientation is vertical.



4.0.8 (471)
--------------------------

### Fixes

- Fix an issue that memory leaked if the autosaving is disabled.
- Fix an issue on the syntax style menu in the toolbar that the previous selection remained under specific conditions.



4.0.7-1 (469)
--------------------------

### Fixes

- [non-AppStore ver.] Fix an issue that CotEditor could not check updates.



4.0.7 (467)
--------------------------

### Improvements

- Highlight named capture where highlight regular expression patterns such as in the find panel.
- Add .erb extension to Ruby syntax style.
- Accept IANA charset names as the encoding name in `convert` and `reinterpret` commands for AppleScript.
- Improve error messages for OSA Scripting.
- [trivial] Tweak the help layout.
- [dev][non-AppStore ver.] Migrate Sparkle framework management from submodule to SwiftPM.
- [dev][non-AppStore ver.] Update Sparkle to 2.0.0-beta.2.
- [dev][non-AppStore ver.] Use `sparkle:channel` element in appcast.xml for prerelease check instead of appcast-beta.xml.


### Fixes

- Fix syntax highlight regression on CotEditor 4.0.6.
- Fix the layout of the initial encoding priority list.



4.0.6 (465)
--------------------------

### Improvements

- Add “Share” command to the menus for setting files, such as theme, syntax style, or multi replacement definition.
- Resume “Select word” on top of the document if the search reached the end.
- Update the visual style of the multiple replacement window on macOS 11.
- Minimize scrolling when focusing on a text such as text search and outline selection.
- Improve the syntax highlighting algorithm around comments and quoted text.
- Revert JavaScript syntax style update in CotEditor 4.0.5 that modifies regular expression highlight.
- Update the bundled cot command to enable reading large piped text entirely.
- Update the User Guide.
- [trivial] Sort themes alphabetically regardless of whether they are bundled or not.
- [trivial] Make the timing to trim trailing spaces shorter.
- [trivial] Tweak Japanese localization in Preferences.
- [trivial][non-AppStore ver.] Sign the application with EdDSA signature for update manager (Sparkle).


### Fixes

- Fix an issue that the document theme did occasionally not change when switching the default theme to “Anura” in Dark Mode.
- Fix an issue that disabling the “Reopen windows from last session” option did not work if the Auto Save is disabled.
- Fix an issue on the latest systems that the Open dialog could not see inside .app packages although when selecting the “Show hidden files” checkbox.
- Fix an issue that the visual window state occasionally did not restore from the last session correctly.
- Fix an issue in the inspector that the content occasionally overlapped with the pane controller above if it is shown when the window opens.
- Fix an issue that the navigation bar tinted wrongly when the document window is in fullscreen and the editor is non-opaque.
- Fix a typo in German localization.



4.0.5 (463)
--------------------------

### Improvements

- Update JavaScript syntax style to improve regular expression highlight.


### Fixes

- Fix an issue that the application did not terminate when all windows are closed.
- Fix an issue that an annoying dialog that alerts saving was failed could be shown while typing when autosaving is disabled.
- Address an issue that typing in a large document could be slow when the Autosave feature is disabled.



4.0.4 (461)
--------------------------

### Improvements

- Update Lua syntax style.
- Update Swift syntax style for more accurate outline extraction and literal number highlight.
- Update JavaScript, PHP, and CoffeeScript syntax styles for more accurate literal number highlight.
- Avoid escaping non-ASCII characters to Unicode code points when exporting syntax styles to YAML files.


### Fixes

- Fix an issue that the application did not terminate when all windows are closed.
- Fix an issue in the script menu that a script bundle (.scptd) was handled not as a script but as a folder.
- Fix an issue in the snippet key bindings that shortcuts with only the Shift key for modifier keys were accepted though does not work correctly.
- Fix an issue that the application rarely showed the Open dialog on launch even when the user setting for the startup behavior is not “show open dialog.”
- Fix literal number highlight with Ruby syntax style.
- Address an issue that an annoying dialog that alerts saving was failed could be shown while typing when autosaving is disabled.



4.0.3 (459)
--------------------------

### Improvements

- Keep detached character inspectors even after the parent document is closed.
- Detect syntax style from the filename extension also case-insensitively.
- Update R syntax style.
- [non-AppStore ver.] Reduce the application size.
- [dev] Update Yams from 4.0.4 to 4.0.6.
- [dev] Update the build environment to Xcode 12.5.



4.0.2 (457)
--------------------------

### Improvements

- Update LaTeX syntax style to support `\(x^2\)` style inline math equations.
- Update Swift syntax style to add `async`, `await`, and `@asyncHandler`.
- Update Touch Bar icons.
- Prevent flashing the acknowledgment window on the first launch in the Dark Mode.
- Improve stability.
- [dev] Update Yams from 4.0.1 to 4.0.4.
- [dev] Update the build environment to Xcode 12.4.


### Fixes

- Fix French localization.
- [trivial] Fix the script icon in the User Guide in Dark mode.



4.0.1 (455)
--------------------------

### Improvements

- [trivial] Reset toolbar setting.
- [dev] Update Yams package to 4.0.1.
- [dev] Update the build environment to Xcode 12.2.


### Fixes

- Fix an issue on Big Sur that the navigation bar in the document window disappeared.



4.0.0 (453)
--------------------------

- No change.



4.0.0-rc (452)
--------------------------

### Improvements

- [beta] Add missing localizations for new text.
- [beta] Update screenshots in help.
- [beta][dev] Update the build environment to Xcode 12.2 RC.


### Fixes

- Fix an issue that the hanging indent can be wrongly calculated when typing a word that requires user selection, such as Japanese.
- [beta][Big Sur] Workaround an issue on Big Sur that the syntax highlight for the regular expression disappears when the text field becomes in editing (FB8719584).
- [beta.3][non-AppStore ver.] Fix an issue in the General preference pane that the checkboxes for software update did not work.



4.0.0-beta.5 (450)
--------------------------

### Improvements

- [beta] Draw the background of the area scrolled over the editor also with the theme color.
- [beta.4][Big Sur] Update the emoji toolbar icon for Dark mode.
- [beta][trivial] Tweak preferences layout.


### Fixes

- [beta.4] Fix an issue in the CotEditor scripting with UNIX scripts that the same standard input could be sent repeatedly to the script.
- [trivial] Fix an issue that the i-beam for the combination of the vertical text orientation and a light theme cropped (FB8445000).



4.0.0-beta.4 (448)
--------------------------

### Improvements

- Reduce the priority that CotEditor implicitly becomes the default application for specific file types.
- [beta] Update syntax style for Pascal (Thanks to cbnbg!).


### Fixes

- [beta.3] Fix an issue on beta.3 that the application crashed when the console window is called first from a script.
- [beta.3] Fix an issue in the CotEditor scripting with UNIX scripts that the output was still occasionally not applied.



4.0.0-beta.3 (446)
--------------------------

### New Features

- Add syntax styles for Pascal (Thanks to cbnbg!) and VHDL.


### Improvements

- On sorting lines by pattern, evaluate numbers more intelligently when the “treat numbers as numeric value” option is enabled.
- Avoid discarding the current input when a new item is added while another item is in editing in the syntax style editor.
- Put only the filename rather than the absolute path for the relative path insertion (`<<<RELATIVE-PATH>>>`) when the document file itself is dropped into the editor.
- [beta] Horizontally center the contents of the preferences panes (Thanks to zom-san!).
- [beta] Update some toolbar icons.
- [beta][trivial] Update the style of the add/remove buttons.
- [beta][dev] Update the build environment to Xcode 12.2 beta 3.


### Fixes

- [beta] Fix an issue in the CotEditor scripting with UNIX scripts that the standard error output was not displayed on the console.
- [beta] Fix an issue in the CotEditor scripting with UNIX scripts that the output was occasionally not applied.
- [beta] Fix the multiple replacement panel layout on macOS 10.15.


### Known Issues

- Checkmarks are not applied to the corresponding items in the menus for the collapsed toolbar items.
- [Big Sur] Syntax highlight for the regular expression disappears when the text field becomes in editing (FB8719584).
- [Big Sur] Screenshots in the User Guide are not updated yet.
- [Big Sur] Document icons are not updated yet for the Big Sur style.



4.0.0-beta.2 (444)
--------------------------

### Improvements

- Round the corners of current line highlights.
- [beta][Big Sur] Match the inspector background to desktop color.
- [beta][trivial] Update title bar color.


### Fixes

- [beta] Fix an issue in the navigation bar that the split editor button did not update when changing the split orientation.
- [beta] Fix an issue in the Appearance pane and the multiple replacement panel that the newly added setting was not selected.
- [beta] Address an issue that the status bar was rarely compressed vertically.
- [beta] Workaround an issue that the initial text color of the pop-up menus in the status bar dimmed.



4.0.0-beta (442)
--------------------------

### New Features

- Brand-new user interface designed to fit macOS Big Sur 11.
    - Update the application icon.
    - Redesign the document window.
- Support Apple Silicon.
- Add syntax style for Dockerfile.


### Improvements

- Change the system requirement to __macOS Catalina 10.15 and later__.
- Move line endings/file encoding menus from the toolbar to the status bar.
- Change default settings of items to display in the toolbar/status bar.
- Change the default theme from Dendrobates to Anura.
- Change the UI of the Unicode code point input to display the input field just above the insertion point.
- Change the “trim trailing whitespace on save” option in the General pane to perform the trimming not on save but while typing with delay, and move the option to the Edit pane.
- Enable toggling the editor split orientation by right-clicking the editor split button in the navigation bar.
- Enable action to toggle editor split orientation even when no split editor is opened.
- Remove the Integration preferences pane and move its contents to the General pane.
- Enable “select previous/next outline item” commands even when the navigation bar is hidden.
- Live update selection counts while moving the selection.
- Scroll editor by swiping the line number area.
- Previously, CotEditor scripts written in Unix scripts, such as Ruby or Python, were decoded using the user-preferred file-encoding set in the Format preferences pane for normal documents, now they are always interpreted as UTF-8.
- Avoid showing the "edited" indicator in the close button of document windows when the document contents are empty and therefore can close the window without the confirmation dialog.
- Remove the toolbar button to toggle page guide visibility.
- Remove feature to import legacy syntax style definition files of which format was used in CotEditor 1.x.
- [trivial] Improve help tags of toolbar icons to reflect the current document state.
- [trivial] Optimize the line number calculation in vertical text orientation.
- [trivial] Always enable non-contiguous layout by the normal horizontal text orientation.
- [dev] Update the build environment to Xcode 12.2 (Swift 5.3, macOS 11 SDK).
- [dev] Replace DifferenceKit package with native CollectionDifference.
- [dev] Update Yams from 3.0.1 to 4.0.0.


### Fixes

- Fix the jump button for theme URL.
- [trivial] Fix an issue in the syntax style toolbar item that the menu selected blank if the current style was deleted.


### Known Issues

- Some of the contents in the User Guide are not updated yet.
- Document icons are not updated yet for the Big Sur style.



3.9.7 (437)
--------------------------

### New Features

- Add new AppleScript/JXA commands `smarten quotes`, `straighten quotes`, and `smarten dashes` for `selection` object.


### Improvements

- Optimize the performance of invisible character drawing, especially with very-long unwrapped lines.
- Update Shell Script (thanks to ansimita!), Python, Ruby, Swift, and SVG syntax styles.


### Fixes

- Fix the jump button for the theme URL.



3.9.6 (435)
--------------------------

### Fixes

- Fix an issue that the “Open Scripts Folder” command in the script menu did not open the scripts folder for CotEditor but just the general Application Scripts folder.
- Fix an issue in the find result table that the found string column truncated the text even in the middle of a character that consists of multiple Unicode characters.
- Fix an issue where the line number view did not update under some specific conditions even when the line height setting is changed.
- Fix the progress message when highlighting a document with a multiple replacement definition.



3.9.5 (433)
--------------------------

### Fixes

- Fix an issue on CotEditor 3.9.4 that window prevented from becoming smaller than the outline items' width.
- Fix an issue that some text transformation commands, such as “Make Upper Case,” also transformed the next unselected word that is identical to the selected one.
- Fix an issue in the navigation bar that the open/close split editor buttons did occasionally not work.



3.9.4 (430)
--------------------------

### Improvements

- Make the document window's minimum size smaller.
- [dev] Update the build environment to Xcode 11.6.


### Fixes

- Fix an issue that an unremovable empty dialog could appear when performing Replace All under specific conditions.
- Fix an issue in the find/replacement progress report that the progress message was not updated when nothing found.
- Fix an issue in the outline menu in the navigation bar that the last separator did not appear.
- Fix an issue in toolbar that menu style items were vertically squashed in the toolbar customization dialog.



3.9.3 (427)
--------------------------

### Improvements

- Significantly optimize the performance of text layout especially when pasting a relatively large amount of text.
- [trivial] Tweak some UI styles.
- [dev] Update Yams from 2.0.0 to 3.0.1.


### Fixes

- Fix an issue in the highlighting instances of selected text that the highlight shape spread wrongly when the selected text included line breaks.
- Fix an issue in the syntax style editing that some keywords that can be parsed as a YAML object, such as `true` or `null`, were not stored as a string.



3.9.2 (425)
--------------------------

### Improvements

- Suppress showing a dialog when opening a file with the .ts file extension as it may not be a MPEG-2 Transport Stream file but a TypeScript file.
- Improve the style and behavior of the add/remove rule button in the multiple replacement window.
- [trivial] Delete multiple replacement rules by dropping items into the Trash.


### Fixes

- Fix an issue in the multiple replacement definition editing where the result order broke, or even the application crashed when reordering multiple rules at once.
- Fix an issue in the editor that the cursor skipped the space just after the word when moving the cursor to the next word boundary with `⌥⇧→` or `⌥→` shortcut.
- Fix an issue in theme editing that the editing color was occasionally forcibly updated in the editor's text color when an editor has the focus.
- Fix an issue in theme editing that the crashed when setting one of the system's developer colors.
- Fix an issue in theme editing that the option “use system color” for the selection color could not disable.
- Fix an issue in theme editing that the values in the theme editor were not updated when the bundled theme currently edited is restored.
- Fix an issue in the dialog for the pattern line sort that the sample line could indicate a wrong sort key scope when the sort key type is “column.”
- Fix the feedback animation when dragging and dropping items in a table.
- [trivial] Fix an issue that the menus in toolbar expended unwontedly after customizing toolbar.
- [trivial] Fix some layout corruptions under macOS Big Sur 11 (beta).



3.9.1 (423)
--------------------------

### Improvements

- Increase the size of the invisible space symbol.
- Adjust the position of invisible symbols in vertical text orientation.
- [trivial] Avoid selecting no item in the snippet setting table.


### Fixes

- Fix an issue in the syntax style editing that saving existing syntax styles failed.
- Fix text flickering while pinch-zoom.
- Fix an issue in the editor where the bottom part of the editor became occasionally not responsive when the editor is zoomed-out.
- Fix an issue in the find panel fields that carriage returns (CR) were not drawn as line endings but control characters.
- Fix an issue in the syntax style editing that reverting a modified bundled style through the style editor did not remove the existing user file.
- Fix an issue under macOS 10.14 that the text in the About panel was black even in the Dark Mode.



3.9.0 (421)
--------------------------

### Improvements

- Remove the default value of the snippet key bindings, that inserts `<br />` with `⇧↩`.
- [trivial] Remove the snippet key bindings setting migration from CotEditor 2.x format and earlier.
- [beta] Add missing localizations for French.


### Fixes

- Fix an issue in the character inspector where the inspector was not shown when the target character is hidden due to scroll.



3.9.0-rc (419)
--------------------------

### Improvements

- [trivial] Adjust the drawing position of the zoomed character in the character inspector.
- [dev] Update the build environment to Xcode 11.5.
- [beta.3] Improve reflecting the state of the Writing Direction toolbar button.
- [beta.3] Adjust the width of toolbar items.
- [beta] Add missing localizations for Simplified Chinese, Italian, and (a part of) Portuguese.


### Fixes

- Fix an issue where the application hung up by extending the selection with shortcut `⌥⇧→` when the character to select is a national flag emoji.
- Fix an issue in the find panel's input fields where a regular expression pattern for Unicode code point was not highlighted properly when the hex contains uppercase letters.
- Fix the help button in the advanced find options view.
- [beta.4] Fix an issue where the font of the object character in the character inspector was wrongly applied.



3.9.0-beta.4 (417)
--------------------------

### Improvements

- [trivial] Omit surrogate pair code points in the character inspector if the character consists of multiple Unicode characters.


### Fixes

- [beta.3] Fix an issue where the encoding list view was not shown.
- [beta.3] Fix an issue where the theme color was still not applied to the color of typed text in split view under some conditions.



3.9.0-beta.3 (415)
--------------------------

### Improvements

- Remove the text encoding option for opened documents; instead, the encoding is always detected automatically when opening an existing file.
- Improve the encodings list edit view.
- Adjust the width of toolbar items.
- Remove “vertical orientation” from the selections of the Writing Direction toolbar button.
- Update help contents.
- [trivial] Rename “Auto-Detect,” the option detecting the file encoding automatically, to “Automatic.”
- [trivial] Update some labels in the Format pane.
- [beta] Add menu item, toolbar item, and Touch Bar item to toggle visibility of indent guides in the current document.
- [beta] Adjust the vertical position of the line ending symbol.
- [beta] Make the indent guide drawing pixel-perfect.


### Fixes

- Fix an issue where the item “Automatic” (ex. Auto-Detect) was missing in the encoding selections in the open panel.
- Fix an issue with multiple cursors where extra characters were deleted when performing forward delete with selection.
- Fix an issue with multiple cursors where just a single UTF-16 character was deleted instead of the whole character when the character to delete consists of multiple UTF-16 characters.
- Fix an issue with scripting with AppleScript/JXA where the `line range` command selected a wrong range when the line endings of the document are CRLF.
- Fix an issue with scripting with AppleScript/JXA where selecting a single line by specifying a single integer argument to `line range` did not work.
- Fix an issue where the theme color was not applied to the color of typed text in split view.
- Fix missing localization.
- [beta] Fix an issue in the editor where lines were initially wrapped at the wrong position when the text orientation is vertical and overscrolling is enabled.



3.9.0-beta.2 (413)
--------------------------

### New Features

- Add an option to draw indent guides.


### Improvements

- [beta] Adjust the vertical character position in line.


### Fixes

- [beta] Fix an issue where the current line highlight wrongly shifted when the overscrolling is set.
- [beta] Fix an issue where line numbers at the bottom part were hidden when the overscrolling is set.
- [beta] Fix an issue where syntax highlight was occasionally not updated when the text is edited.
- [beta] Fix an issue where the current syntax highlight was not removed when selecting style “None.”
- [beta] Fix an issue where the visibility of invisibles of opened documents cannot be changed.
- [beta] Fix an issue where the previous current line highlights could remain.
- [beta] Fix an issue where the previous page guide could remain after changing the page guide visibility.



3.9.0-beta (411)
--------------------------

### New Features

- Rewrite the invisible character drawing feature to draw alternative symbols more properly under various environments.
- Display Unicode's general category in the character inspector.


### Improvements

- Adjust the text baseline to draw characters vertically center in lines.
- Optimize the performance of “Replace All” with a large number of matches.
- Improve the performance when pasting a huge text.
- Update the Unicode block table to the latest Unicode 13.0.0.
- Duplicate lines more intelligently.
- Make borders of line number views and opacity sample tips more distinct in the high-contrast mode.
- Adjust the visible area after unwrapping lines in RTL text mode.
- [trivial] Display default values as the input field's placeholder for window size setting when empty.
- [trivial] Make the identifier for document autosaving longer.
- [dev] Update the build environment to Xcode 11.4 (Swift 5.2).
- [dev] Replace YAML.framework with Yams.
- [dev] Remove Carthage dependency.
- [dev] Migrate codesign-specific build settings to .xcconfig (thanks to Yoshimasa Niwa!).


### Fixes

- Fix an issue where the application crashed when a hanging indent depth becomes larger than the editor area.
- Fix an issue where the outline menu could select the wrong item while typing.
- Fix an issue where the line numbers could be shifted when printing vertical text orientation documents.
- Fix an issue where line endings could remain when deleting duplicate lines with multiple selections.
- Fix an issue in the line number view where the line number of the selected line was not bolded under a specific condition.
- Fix an issue in scripting with AppleScript/JXA where the application crashed by performing `string in ...` command.
- Fix an issue in scripting with AppleScript/JXA where the contents of a document can rarely be overwritten with the contents of another document window under very specific conditions.
- Fix an issue in the editor where lines were initially wrapped at the wrong position when the text orientation is vertical.
- Fix an issue in the RTL text mode where the page guide disappeared when lines are unwrapped.
- Fix an issue where the current line highlight did not update properly after changing some settings.
- Fix an issue in the find panel's input fields where invisible control characters were drawn in the normal text color under specific conditions.
- Fix an issue where the print font name in the Print pane was drawn in black even in the dark mode.
- Fix an issue in the editor where the previous drawing could remain in a blank space after changing a display setting of the editor.



3.8.12 (400)
--------------------------

### Improvements

- Include the last line break to line count.
- Update Kotlin, JSON, and SVG syntax styles.


### Fixes

- Fix an issue where the horizontal scrollbar didn't appear by unwrapping lines if the document consists of a single very long line.
- Fix an issue where the application could crash after parsing syntax in a large document to highlight.
- Fix an issue where the overscrolling was enabled only after window is resized.
- Fix an issue where the current line was just partly highlighted under specific conditions.
- Fix an issue in the line number view where the line number of the selected line was not bolded under a specific condition.
- Fix an issue where the find panel could not display the result table when the find string is very long.



3.8.11 (398)
--------------------------

### Improvements

- Avoid showing the rainbow cursor while parsing URLs in the editor with large contents when the “link URLs in document” option is enabled.
- Improve “Snakecase” and “Camelcase” commands to handle uppercase letters with accent properly.
- Improve message for syntax highlighting progress.
- Improve drawing performance and general stability.
- [trivial] Tweak the visual notification for wrapping search.


### Fixes

- Fix an issue where a document window zombie appeared when the window was closed while detached character info popovers remain.
- Fix an issue where a blank progress dialog for a long syntax highlighting could rarely remain when the document is updated while parsing.
- Fix an issue where the `\x{hhhh}`, `\0ooo`, and `\$` style character expressions in the regular expression pattern were not syntax-highlighted correctly.
- Fix an issue where the application could rarely crash when printing a document.
- Fix an issue where the application could rarely crash when opening a document under macOS 10.14 and earlier.



3.8.10 (396)
--------------------------

### Improvements

- Optimize the performance of the invisible character drawing, the hanging indent calculation, and the line number view drawing.
- Make space to draw the invisible symbol for ZERO WIDTH SPACE (U+200B) when the “other invisible characters” option is enabled.
- Enable “Move Line Down” and “Move Line Up” commands swap lines with the last empty line.
- Improve general performance while typing.
- Update CSS syntax style.
- [trivial] Keep the visible area after resizing a document window even if overscrolling is enabled.
- [trivial] Adjust the theme “Note.”


### Fixes

- Fix an issue where the Unicode code point field in the document inspector displayed always “not selected.”
- Fix an issue where insertion points multiplied too many when adding them with `^⇧↑` or `^⇧↓` shortcut under specific conditions.
- Fix an issue where default theme change in the preferences was not applied to opened documents under specific conditions.
- Fix an issue where unescaping replacement string in the regular expression replacement failed with specific text patterns.
- Fix an issue where the editor's line height and tab width in the opened windows did not update even the setting is changed.
- Fix an issue where the rainbow cursor could appear when finding the brace pair in the latter part of a large document.
- Fix an issue where the application crashed when moving lines down under specific conditions.
- Fix an issue where the “Sort by Pattern” with column sort key dropped the last character from the sort key string.
- Fix an issue where the current line highlight remained when quickly moving selection by dragging.
- Fix an issue where the writable area of newly added split editors shrank.
- Fix an issue in scripting where settings some properties, such as `tab width`, `tab expands` and `wrap lines`, in the document creation phase were ignored.
- Improve stability.



3.8.9 (394)
--------------------------

### Improvements

- Significantly reduce the time of the rainbow cursor after the opening of a large document by optimizing hanging indent calculation.
- [trivial] Optimize current line highlighting.


### Fixes

- Fix an issue on CotEditor 3.8.8 where the application could rarely crash immediately after opening a document window under some very specific conditions.
- Fix an issue where the progress indicator for the outline menu in the navigation bar could rarely remain.



3.8.8 (391)
--------------------------

### New Features

- Add a new “Straighten Quotes” command to Edit > Substitutions menu.


### Improvements

- Add “Replace Quotes,” “Replace Dashes,” and “Replace Text” commands to Edit > Substitutions menu.
- Restore the default window size setting in the Window preferences pane.
- Enable setting multiple cursor points in snippets.
- Optimize the timing of view updating in some specific views.
- Optimize some background jobs.
- Toggle only the checkbox in a table that the user actually clicked and ignore others when the clicked checkbox is not contained to the selected rows.
- Fold license descriptions in the acknowledgments.
- [trivial] Tweak the visual notification for wrapping search.
- [dev] Replace Differ framework with DifferenceKit.
- [dev][non-AppStore ver.] Change the Sparkle branch from “ui-separation-and-xpc” to “2.x”.


### Fixes

- Fix an issue on macOS 10.15 where document windows had a glitch when a search is wrapped.
- Fix an issue where the font size of the line number view was occasionally not updated even when text size is changed.
- Fix an issue where “⌘⇧T” shortcut key assigned for “Show/Hide Tab Bar” was ignored under specific conditions.
- Fix an issue where the width of the inspector was occasionally not properly set.
- Fix an issue where the wrong warning message displayed in the multiple replacement panel even when there is no invalid condition.
- Fix a possible crash when transforming the case of selection that includes specific character order.
- Fix a possible crash when a document file is modified by another process.
- [trivial] Fix a typo in French (Thanks to Arnaud Tanchoux!).
- Improve stability.



3.8.7 (389)
--------------------------

### Improvements

- Revert shortcut `⌘/` to comment-out toggle.
- Add .zprofile and .zlogin extensions to Shell Script syntax style.



3.8.6 (387)
--------------------------

### Improvements

- Change the default shortcut for Format > Font > “Reset to Default” command to `⌘0` and let “Bigger” command accept also `⌘=`.
- Add shortcut `⌘/` to “Show/Hide Status Bar” command.
- Add shortcut `⌘⇧T` to “Show/Hide Tab Bar” command.
- Avoid showing rainbow cursor when canceling the initial syntax highlight.
- [trivial] Modify the layout of the progress dialog and the regular expression syntax reference.
- [trivial] Let input fields in the Edit pane accept values without a percent sign.


### Fixes

- Fix an issue where creating multiple cursors by rectangular selection failed under macOS 10.15.
- Fix an issue where the selection highlight color in inactive windows could make text hard to read under macOS 10.14–10.15.
- Fix an issue where the progress message by find/replacement was not updated when no occurrence found.
- Fix a possible crash when an invalid color code is input to the color code panel.
- Improve stability.



3.8.5 (384)
--------------------------

### Improvements

- Uncomment comment lines even if the delimiters locate after some indent.
- Raise an alert when performing find (or replacement) with “in selection” option while no text is selected.
- Change the Console font to monospaced.
- Dim the Console content area during the incremental search.
- Accept importing custom syntax styles with .yml extension.
- Avoid re-parsing syntax highlight when the appearance is switched.
- Support Dark Mode in the help.
- [non-AppStore ver.] Update Sparkle framework.
- [trivial] Tweak some terminology in the menu.
- [trivial] Adjust the pinch-zoom pitch.


### Fixes

- Fix an issue where the text color in the status bar was sometimes not updated immediately after switching window appearance.
- Fix an issue where parsing syntax style files could fail.
- Fix an issue where uncommenting inline comments failed when multiple cursors locate in the same line.
- Avoid rainbow cursor when about to display the Text menu while selecting large number of text.
- Update PHP and Julia syntax styles to remove duplicated keywords.



3.8.4 (381)
--------------------------

### Improvements

- Insert soft tabs to all insertion points when typing the tab key.


### Fixes

- Fix an issue on macOS 10.13-14 that the application became unstable with some specific actions when the cursor locates the end of the document.



3.8.3 (379)
--------------------------

### Improvements

- Restore all of the last cursors on the window restoration.
- Highlight matching braces for all cursors.
- Adjust the printing area by the vertical text orientation.
- Update JSON syntax style by adding .resolved extension.


### Fixes

- Fix area to draw text on printing, especially for macOS Catalina 10.15.
- Fix an issue on macOS 10.13-14 where spaces at the end of the document could not be deleted by delete key.
- Fix an issue on macOS 10.13-14 where performing return key just after an open bracket at the end of the document made the application freeze.
- Fix an issue where the editor theme for newly opened windows did not match to the window appearance when the system appearance was changed after the application launch.
- Fix an issue where a highlighting indicator showed up at a wrong location when pressing the Enter key just before a closing bracket.
- [trivial] Fix French localization.



3.8.2 (377)
--------------------------

### Fixes

- Add an additional workaround to detour the bug in macOS 10.13-14 that crashes/freezes the application.



3.8.1 (375)
--------------------------

### Fixes

- Address a critical issue where the application could crash under macOS 10.13-14.
- Fix an issue that the documents opened together were not opened as a single window with multiple tabs.



3.8.0 (373)
--------------------------

- No change.



3.8.0-beta.2 (372)
--------------------------

### Fixes

- [beta] Fix a crash when changing the window appearance setting.



3.8.0-beta (371)
--------------------------

### New Features

- Add “Appearance” option in the Appearance preferences pane to change document window appearance whatever the system appearance is (only on macOS 10.14 and later).
- Add a new theme “Anura (Dark).”


### Improvements

- Change the system requirement to __macOS High Sierra 10.13 and later__.
- Improve the theme switching algorithm between light and dark appearances.
- Keep multiple cursors after pasting multiple lines.
- Update the result table of “Find All” even when no substring was found.
- Adjust drawing of the alternative character for invisible control characters.
- Adjust text baseline of input fields in the find panel when a fallback font is used.
- Always enable Left to Right button in Writing Direction toolbar button.
- Change the way to count words for stability.
- Update TOML syntax style to support array of tables (Thanks to Takuto ASAKURA!)
- [dev] Update build environment to Xcode 11.1 (Swift 5.1, macOS 10.15 SDK).


### Fixes

- Fix the selection movement direction after `⌥⇧←` or `⌥⇧→` shortcut.
- Fix an issue where scripting commands `convert` and `reinterpret` failed.
- Fix an issue where the color panel for theme editing could occasionally not change.
- Fix an issue where the appearance of Acknowledgements window was not updated when user changed the system appearance after the launch.



3.7.8 (361)
--------------------------

### Improvements

- Optimize performance of text layout calculation.


### Fixes

- Fix an issue where the editor could not scroll horizontally under specific conditions.



3.7.7 (358)
--------------------------

### New Features

- Add a new option to the Appearance pane to disable ligatures.


### Improvements

- Keep last opacity state of restored document windows.
- Update behavior of Opt+Arrow shortcut series.


### Fixes

- Fix an issue where find result was unwontedly collapsed when resizing the find panel.
- Fix an issue where hanging indent was not applied to the printed document.
- Workaround the issue where an editor resizing required a too long time.
- Fix a possible crash in the Appearance preferences pane.
- Improve stability.



3.7.6 (355)
--------------------------

### New Features

- Add new variable “file content” to File Drop feature to insert the file contents when the dropped file is a text file.


### Improvements

- Apply the change of “show other invisible characters” option immediately to the editors.
- Add “Hide extension” option to the Save dialog.
- Use the system appearance in the input candidate window even when the theme has a dark background color.
- Give some feedback about the search result in VoiceOver.
- Improve the behavior of Opt+Arrow shortcut series to stop the by punctuation marks, such as `.` and `:`.
- Hide unused items in the font panel toolbar.
- Optimize the performance of finding the matching brace to highlight.
- Optimize the performance of line number drawing.
- Optimize the performance of hanging indent calculation.


### Fixes

- Fix an issue where unwanted whitespace was added for variation selector `U+FE0E` when control characters are visible.
- Fix an issue with scripting where regular expression anchors, such as `^` or `$`, did not match lines.
- Fix an issue where the “Writing Direction” toolbar item did not work if it overflows from the visible toolbar area.
- Fix an issue where `U+FEFF` cannot be input via “Input in Unicode hex” command.
- Fix a possible crash with continuous `U+FEFF` characters.
- Fix a possible crash on macOS 10.12.



3.7.5 (353)
--------------------------

### Improvements

- Select the current editor's font in font panel when display it.
- Update Swift syntax style to support Swift 5.1.
- Underline URLs in printed document also if “Link URLs in document” option is enabled.
- Improve stability.
- [dev] Update Differ framework to 1.4.3.


### Fixes

- Fix performance regression due to a bug fix in CotEditor 3.7.4.
- Fix an issue where snippet text was still occasionally not editable from the preferences pane.



3.7.4 (351)
--------------------------

### New Features

- Add French localization (thanks to Aurélien Roy!).


### Fixes
- Fix an issue where the snippet text was occasionally not editable from the preferences pane.
- Fix an issue where the Unicode character name for `U+FEFF` (ZERO WIDTH NO-BREAK SPACE) was empty.
- Fix an issue where the application did crash when the selected text contains some specific control characters.
- Fix an issue where the word completion suggested words start with letters in the middle of the typed word.
- Fix an issue where needless live document analysis performed even when the status bar and inspector are invisible.
- Fix missing localization.
- Improve stability.



3.7.3 (349)
--------------------------

### Improvements

- “Input in unicode hex” now supports multi-cursor editing.
- Make font size of outline view customizable.


### Fixes

- Fix an issue where user settings could not be overwritten to export when the same filename already exists.
- Fix an issue where clear buttons in the find panel's text fields could overlap with scroll bar areas.
- Fix syntax style validator.
- Improve stability.



3.7.2 (347)
--------------------------

### Improvements

- Make the i-beam cursor legible in vertical text orientation and dark background theme.
- Use monospaced numbers for line numbers in Find All result table.
- Optimize performance highlighting found matches.
- [dev] Update build environment to Xcode 10.2 (Swift 5).
- [dev] Update Differ framework to 1.4.0.


### Fixes

- Fix an issue under macOS 10.12 where application hung up if “Text Orientation” toolbar item is visible.
- Fix an issue where the “Discard Changes” and “Cancel” buttons in the dialog for encoding reinterpretation performed oppositely (Thanks to Aurélien Roy!).
- Fix an issue where color code editor was invisible under macOS 10.12.
- Fix an issue where the Go to Line command did not jump to the input number of line when performed by clicking “Go” button.
- Fix an issue where `change kana` scripting command did not work.



3.7.1 (344)
--------------------------

### Improvements

- Highlight all lines that contain one of the multi-insertion points as current lines.
- Insert the text content of .textClipping files when dropped.


### Fixes

- Fix an issue where trailing whitespace before the insertion points could be wrongly removed on the first auto-saving.
- Improve stability.



3.7.0 (342)
--------------------------

### Fixes

- [beta] Hide the horizontal scroll bar area when text wrapped.
- [beta] Fix an issue where the line wrap width of a split view could be set shorter than the actual view if scroller bars are set to be always visible.



3.7.0-rc.5 (339)
--------------------------

### Fixes

- [beta] Fix an issue where lines did not wrap correctly with vertical text orientation.
- [beta] Fix an issue where the line wrap width of a split view could be set shorter than the actual view if scroller bars are set to be always visible.



3.7.0-rc.4 (337)
--------------------------

### Improvements

- Keep selections after performing “Duplicate Lines.”
- [beta] Keep cursors after performing “Delete Lines.”
- [beta] Change behavior of `⌘⌦` shortcut with a single selection.


### Fixes

- [beta] Fix an issue where `⌥⌦` shortcut with multi-cursors deleted a word but toward a wrong direction.
- [beta] Fix an issue where moving multiple cursors with a shortcut would not scroll the editor until the moved cursors visible.



3.7.0-rc.3 (335)
--------------------------

### Improvements

- Delete sequential paces character by character when they are not located at the beginning of a line even if “Expand tabs to spaces” option is enabled.
- [beta] Support right-to-left and bidi text by moving multiple cursors.


### Fixes

- Fix an issue where “Replace All” could fail when the text to find is a combining character such as a diacritical mark.
- Fix an issue where lines did not wrap correctly with vertical text orientation.
- Fix an issue where the line wrap width of a split view could be set shorter than the actual view if scroller bars are set to be always visible.
- Fix an issue where the year in the print header or console prompt was displayed wrongly in specific days (Thanks to Frédéric Blondiau!).
- [beta] Fix detailed behaviors of `^⇧↑` and `^⇧↓` shortcuts.
- [beta] Fix an issue the application crashed by performing `^⇧↑` or `^⇧↓` shortcut when RTL text is selected.
- [rc.2] Fix background color when an editor was scrolled over a boundary.



3.7.0-rc.2 (333)
--------------------------

### Improvements

- [beta] Disable “Change Opacity” action while fullscreen mode.
- [beta] Move the position of the opacity control popover.
- [beta] Update the User Guide.
- [trivial] Improve toolbar color.
- [dev] Update Differ framework to 1.3.0.


### Fixes

- Fix an issue where closed windows remained on the memory.
- Address an issue where selected ranges were set wrongly after updating document due to an external modification.



3.7.0-rc (331)
--------------------------

### New Features

- Add “Surround Selection With” > “Square Brackets” menu item.


### Improvements

- Remember the last used custom characters for “Surround Selection With” > “Custom” action.
- [beta] Keep insertion points after cut.
- [beta] Localize newly added strings.



3.7.0-beta.5 (329)
--------------------------

### New Features

- Add “Opacity” toolbar item to change editor's opacity.


### Improvements

- Restore more UI state on window restoration.


### Fixes

- Fix an issue where the last syntax style was not applied when an unsaved document was restored from the last session.
- Fix an issue where auto-completion could cancel suddenly under a restricted condition.
- Fix a possible issue where word counting could be stuck.
- [beta] Fix multi-cursor behavior with `→` and `←` when something is selected.



3.7.0-beta.4 (327)
--------------------------

### Improvements

- [beta] Support snippet insertion in multi-cursor editing.
- [beta] Replace `^⇧↑` and `^⇧↓` shortcuts with `^⇧→` and `^⇧←` correspondingly when the text orientation is vertical.
- [beta] Fix and improve the behavior of `^⇧↑` and `^⇧↓` shortcuts.
- [beta] Merge changes in CotEditor 3.6.12.


### Fixes

- [beta] Fix selection after commenting-out.
- [beta] Suppress blinking Edit menu when performing `^⇧↑` or `^⇧↓` shortcut.
- [beta] Fix an issue where auto-inserted tab did not expand to spaces on auto indent level adjustment.



3.7.0-beta.3 (325)
--------------------------

### Improvements

- [beta] Support commenting-out/uncommenting in multi-cursor editing.
- [beta] Support `^T` and `fn+delete` (`^D`) shortcut in multi-cursor editing.


### Fixes

- [beta] Fix an issue where multiple cursors disappeared after (auto-)saving with “trim trailing whitespace on save” option.
- [beta] Fix an issue where the first cursor could disappear after some specific text editing.
- [beta] Fix an issue where auto-inserted tab did not expand to spaces on auto indent level adjustment.
- [beta] Fix multi-cursor behavior of deleting to the beginning of the visual line by `⌘⌫`.
- [beta] Fix multi-cursor movement when encountering a surrogate pair.
- [beta] Fix an issue where a selected range and an insertion point could overlap.
- [beta] Fix an issue where the application could rarely crash after moving cursors.



3.7.0-beta.2 (323)
--------------------------

### Improvements

- [beta] Exit multi-cursor mode by using `esc` key.
- [beta] Add `^⇧↑` and `^⇧↓` shortcuts to add an insertion point above/below.


### Fixes

- [beta] Fix a crash when moving multiple cursors with arrow keys.
- [beta] Fix the width of insertion points.
- [beta] Fix cursor behavior when moving multi-cursors among words with shortcut keys.



3.7.0-beta (321)
--------------------------

### New Features

- Multi-cursor editing.



3.6.12 (311)
--------------------------

### Improvements

- Update syntax style for SVG.
- Update `cot` command-line tool:
    - Fix an issue where stack trace displayed when using `--wait` option with some clients other than Terminal.app.
    - Fix an issue where `--column` could misplace the insertion point when a negative number was given.


### Fixes

- Fix an issue where the snippet insertion did not work.
- Fix an issue where theme change did not apply to opened documents under specific conditions.
- Fix an issue where user theme was not applied when windows restored on macOS 10.12.
- Fix an issue on macOS 10.12 where the initial theme editor was empty when the preferences window switches to Appearance pane.
- Improve stability.



3.6.11 (309)
--------------------------

### Improvements

- Live update selection highlight in line number views.


### Fixes

- Fix an issue where the application could crash when deleting the last character in a large document.



3.6.10 (307)
--------------------------

### New Features

- Add syntax style for Kotlin.


### Improvements

- Change counting method of the cursor location and column to 1-based (formerly 0-based).
- Optimize syntax highlight application so that the time displaying the rainbow cursor reduces significantly with a large document.
- Make editing multiple replacement definitions undoable.
- Syntax highlight regular expression patterns in the syntax style editor, multiple replacement definitions, and the custom sort dialog.
- Move focus to the editor when lines are selected by clicking line numbers.
- Apply update of “Line numbers,” “Page guide,” and “invisible characters” visibility options in the preferences immediately to opened documents.
- Suppress the dialog asking if you want to keep the document when an unsaved empty document is about to close, and silently discard the auto-saved backup file.
- Change the label of the option “Count each line ending as one character” in General pane to “Ignore line endings when counting characters” (the value reversed).
- Enable the “Share” button in toolbar also in the Text Only mode.
- Display also mapping conflicts of interpreters in the syntax style file mapping conflict dialog.
- Make composition views for the Share feature document-modal also in macOS 10.12.
- Disable “Hide Toolbar” command for the preferences window.
- Improve general performance.
- Update German localization (Thanks to J-rg!).
- Update `cot` command-line tool:
    - Accept a negative value for `--column` option to count from the end of the line.
    - Change `--column` count from 0-based to 1-based.
    - Improve error message when failed.
    - Fix an issue where the last empty line was ignored when specifying the cursor position with `--line` option.
- [trivial] Make the minimum width of outline inspector wider.


### Fixes

- Fix an issue where the final number of the replacement in the progress dialog was occasionally underrated.
- Fix an issue where the cursor could not be set at the end of the document via AppleScript or `cot` command.
- Fix an issue where syntax highlight was not updated in specific condition when deleted.
- Fix an issue where line number views did not update when the editor is scrolled via script.
- Fix the preferences pane switching animation under macOS 10.13 and earlier.
- [trivial] Fix a potential issue where last empty line number could be drawn at the first line position under specific conditions.
- [trivial] Fix an issue where editor occasionally scrolled unintentionally when an arrow key is pressed.



3.6.9 (305)
--------------------------

### Improvements

- Optimize syntax highlighting.


### Fixes

- Fix an issue where the application crashed when splitting editors.
- Fix an issue where a part of line numbers disappeared when Japanese text is being inputted.
- Fix an issue where the context menu did not open under macOS 10.13 and earlier if the user has scripts.
- [trivial] Fix font style of “Italic” button in the outline menu editor.



3.6.8 (303)
--------------------------

### New Features

- Add syntax style for TOML.


### Improvements

- Improve the performance of text replacement significantly.
- Improve the line number view fundamentally so that all unwanted behaviors after macOS Mojave disappear.
- Select the setting selected in the last session when opening the Multiple Replacement window.
- Enable the noncontiguous layout only with large documents.
    - This change may improve the editor's drawing and scrolling behaviors.
- Improve general performance and stability.
- [dev] Stop LineNumberView inheriting NSRulerView.


### Fixes

- Fix the cursor location by changing the selection with shortcut `⌘←`.
- Fix an issue where the rainbow cursor could appear when canceling syntax highlight with a large document multiple times.



3.6.7 (301)
--------------------------

### Improvements

- Change not to highlight occurrences of the selection when there are more than 100.
- Update validation pane in the syntax style editor:
    - Now, validation is performed automatically when the pane switched to “Validation.”
- [trivial] Remove “Restore Defaults” button in the syntax style editor if the style has no defaults.
- [non-AppStore ver.] Update Sparkle framework.


### Fixes

- Fix an issue where `cot` command failed to open paths or stdin containing backslash character.
- Fix an issue on CotEditor 3.6.5 where right-click no longer opens the context menu under macOS 10.13 and earlier.
- Fix an issue where the thickness of the line numbers view did not grow enough with a large number of lines.
- Fix an issue where the syntax style validator ignored unbalanced block comment delimiters that should be an error.
- Fix the preferences pane switching animation under macOS 10.13 and earlier.
- Fix possible crashes.
- Fix minor issues in the syntax style editor.
- Fix some localized strings.



3.6.6 (299)
--------------------------

### Fixes

- Fix an issue on CotEditor 3.6.5 where the syntax highlight did not update while typing.
- Fix an issue where preferences panes could not change under macOS 10.12.
- Add missing localizations.



3.6.5 (297)
--------------------------

### New Features

- New option for cursor style (Customize the behavior in Appearance preference pane).


### Improvements

- Avoid drawing variant sequence as invisible control characters.
- Make line number view opaque if lines are unwrapped on macOS 10.14 to avoid drawing the editor's text over the line numbers.
- Revoke the line counting behavior change with VoiceOver in CotEditor 3.6.3.
- [trivial] Draw vertical tabs as general invisible control characters.


### Fixes

- Fix an issue where the editor area could still tuck under the line number view.
- Fix an issue where the line number of the last empty line disappeared when lines are not wrapped and scrolled.
- [trivial] Fix a weird view expansion on the first transition to the General preferences pane.
- [trivial] Fix an issue on Mojave where the text selection highlight could remain between lines.



3.6.4 (294)
--------------------------

### New Features

- Add a command “Select Word” (`⌘D`) to Edit menu.


### Improvements

- [trivial] Display default setting values as the input field's placeholder for instance highlight delay option when empty.


### Fixes

- Fix an issue where editor area could be tuck under the line number view.
- Fix an issue where changing the selection by shortcut `⇧→` just after shortcut `⌘⇧←` expanded the selection to a wrong direction.
- Fix an issue where page guide did not update when font changed.



3.6.3 (292)
--------------------------

### Improvements

- Assign `⌘⇧[` shortcut to “Show Next Tab” command instead of “Surround Selection with Brackets” command.
- Treat a logical line, which is delimited by line ending characters, as one line in VoiceOver, instead of a visual (wrapped) line.
    - Thereby, users can now also know the current line number by pressing VoiceOver shortcut VO+F3.
- Improve the accessibility of user interface elements with VoiceOver.
- Avoid performing custom sort with an invalid parameter.
- Display default setting values as the input field's placeholder in preferences window when empty.
- [trivial] Move the focus to the target input field when the clear button in the find panel was pressed.


### Fixes

- Fix an issue where selected inspector pane was not stored.
- Fix an issue where initial display area shifted unwontedly if line numbers are displayed lines are unwrapped.
- Fix an issue where script name was not displayed in Console.
- Fix an issue where the writing direction (RtL) was not delivered to printing.
- Fix layout in some localized environment.



3.6.2 (290)
--------------------------

### New Features

- Let the input fields in the find panel accept pinch-zoom.


### Improvements

- Avoid selecting deleted spaces when undoing a soft tab deletion.
- Make the credits view in About panel dark in the Dark Mode.
- Add .cxx extension to C++ syntax style.
- Adjust the width of line number views.
- [non-AppStore ver.] Update Sparkle framework.


### Fixes

- Fix an issue where the cursor position did not restore correctly after repeatedly undoing & redoing bracket insertion with the “Automatically insert closing brackets and quotes” option enabled.
- Fix an issue where editor scrolled unwontedly after pasting something at a latter half part of the document with “Link URLs in document” option enabled.
- Fix an issue where URL link ranges expanded even if non-URL-related lines is pasted just after an URL.
- Fix an issue where the application could rarely crash under specific conditions.



3.6.1 (288)
--------------------------

### New Features

- Add “Match only whole word” option to advanced find options (Default: off).
- Add syntax style for “Properties” (mainly for Java).


### Improvements

- [AppStore ver.] Enable the enhanced runtime protection on macOS Mojave 10.14 also by the MAS version.
- Make the i-beam cursor more legible in a dark background theme.
- Sync sidebar width among tabbed windows.


### Fixes

- Fix an issue where the initial window size could be easily forgotten.
- Fix an issue `cot` command failed if the client terminal is non-scriptable.
- Fix an issue where the application could rarely crash on reopening documents under specific conditions.
- Fix the tab window switching via a shortcut key in macOS 10.14.



3.6.0 (286)
--------------------------

### Fixes

- Fix an issue where theme was not applied to document print when the print theme setting is “Same as Document's Setting.”
- Fix an issue where “Copy as Rich Text” command lost the style information when paste to some specific applications, such as Pages.
- [beta] Fix an issue where theme color was not applied to document print.
- [beta] Fix an issue where the editable area in editors are occasionally set wrong after zooming on macOS Mojave 10.14.



3.6.0-beta.3 (279)
--------------------------

### Improvements

- [beta] Localize newly added strings in Portuguese.


### Fixes

- [beta] Fix an issue where the title bar color was not correctly updated when the system appearance is changed.



3.6.0-beta.2 (278)
--------------------------

### New Features

- Add an option to select the default writing direction among left-to-right, right-to-left, and vertical (Customize in Window preferences pane).


### Improvements

- Abandon the ancient ODB editor support.
- [beta] Localize newly added strings in Chinese, German, and Italian.
- [non-AppStore ver.] Update Sparkle framework.


### Fixes

- [beta] Fix an issue the read-only icon in the status bar displayed opposite.
- [beta] Text view stacks under the line number view when zoomed.


### Known Issues

- [Mojave] The title bar color is not correctly updated when the system appearance is changed.
- [Mojave] The editable area in editors are occasionally set wrong after zooming.



3.6.0-beta (276)
--------------------------

### New Features

- Support Dark Mode in macOS Mojave 10.14.
- Add a new theme “Dendrobates (Dark).”
- Add new commands to transform selections to snake case, camel case, or pascal case.
- Add “Emoji & Symbols” toolbar item.
- [non-AppStore] The non-AppStore application binary is now notarized by Apple.


### Improvements

- Change the system requirement to __macOS 10.12.2 Sierra and later__.
- Update `cot` command-line tool to return the focus to the client terminal window again after `--wait`.
- [trivial] Improve the high contrast mode support.
- [trivial] Optimize the performance of line number drawing.
- [dev] Update build environment to Xcode 10 (Swift 4.2, macOS 10.14 SDK).
- [non-AppStore ver.] Enable Enhanced Runtime protection for macOS Mojave and later.
- [non-AppStore ver.] Update Sparkle framework.


### Fixes

- Fix an issue where the current line highlight could blink while pinch zoom.


### Known Issues

- [Mojave] Text view stacks under the line number view when zoomed.
- [Mojave] The title bar color is not correctly updated when the system appearance is changed.



3.5.4 (275)
--------------------------

### Fixes

- Fix an issue where toolbar items did not reflect their state on macOS 10.12 or earlier.
- Fix margin around the Tab toolbar icon on macOS 10.12 or earlier.



3.5.3 (274)
--------------------------

### Fixes

- Fix an issue where the “Replace All” command didn't work on CotEditor 3.5.2.



3.5.2 (273)
--------------------------

### Improvements

- Avoid editor can be edited while a dialog covers it.
- Update YAML syntax style for more reliable highlight.
- Update Swift syntax style by fixing outline extraction.
- [trivial] Adjust initial document window size.


### Fixes

- Fix an issue where the multi replacement feature exported definitions without its file extension.
- Fix an issue where “Hide extension” checkbox in the setting export dialog was ignored.
- Fix an issue where an unhidable empty progress dialog was displayed if another dialog was displayed when the task started.
- Address an issue where the application could rarely crash during syntax highlighting.



3.5.1 (271)
--------------------------

### Improvements

- Change the find behavior of the simple Find/Replace command with “In selection” option to find a match only in the selection.


### Fixes

- Fix an issue where the initial window size could be easily forgotten.
- Fix an issue where the font button in the toolbar did not work.
- Fix an issue where the inputting text that is not finalized yet could be wrongly highlighted.
- Fix an issue where some Unicode block names were not displayed in character info popover.
- Address an issue where the application could rarely crash during syntax highlighting.



3.5.0 (268)
--------------------------

### Improvements

- Update Python syntax style for Python 3.7.
- Update Swift syntax style for Swift 4.2.
- [dev] Remove dependency on iculibcore.



3.5.0-rc (266)
--------------------------

### New Features

- Let the input fields in the find panel accept text scaling commands, such as “Bigger,” “Smaller,” and “Reset to Default.”


### Improvements

- [beta] Apply overscrolling rate change immediately.
- [beta] Localize all text added in CotEditor 3.5.0.


### Fixes

- [beta] Fix an issue where the application crashed immediately on launch on OS X 10.11.



3.5.0-beta.2 (264)
--------------------------

### Improvements

- Keep the cursor position as possible after the editor content is updated to the latest version modified by another process.
- Optimize auto URL detection with paste to a large document.
- [beta] Update toolbar button images.
- [trivial] Update some Japanese localization.



3.5.0-beta (263)
--------------------------

### New Features

- New toolbar icons.
- Highlight the same substrings of the selection automatically (Customize the behavior in General preferences pane).
- New option to allow overscrolling (Customize the behavior in Window preference pane).
- Enable to change the tab width of a specific document to a desired number.


### Improvements

- Add command “Select All Find Matches” in Find menu.
- Improve the editor's scrolling behavior to scroll along the predominant axis.
- Add menu item to toggle the visibility of the sidebar inspector.
- Remove some setting options for windows such as window size and visibilities of document inspector and status bar from Window preferences pane.
    - From now on, the latest change to a window will be inherited to future windows just like other standard Cocoa applications.
- Remove “length” display in the status bar.
- Remove feature to change only the frontmost editor's opacity temporary.
    - From this, `view opacity` property on AppleScript is also deprecated.
- Display current user's system-wide setting for window tabbing in the menu on the Window pane.
- Optimize the performance of character counting.
- Improve general stability of the print operation.
- [trivial] Count progress of the Highlight command in Find menu match by match.
- [trivial] Update editor opacity sample tips.
- [non-AppStore ver.] Update Sparkle framework.


### Fixes

- Fix an unlocalized text.



3.4.4 (261)
--------------------------

### Fixes

- Address an issue where the application could rarely crash on syntax highlighting.
- Address an issue on Mojave where text view stacked under the line number view.



3.4.3 (259)
--------------------------

### Fixes

- Fix an issue where the help button in the multiple replace window did not link to the suitable help page.
- Fix an issue where the current line highlight was opaque in split editors although the editor background is non-opaque.
- Fix an issue where unwanted debug log was printed in the Console.
- Fix an issue where “Show File Mapping Conflicts” menu item was always available even no conflict exists.
- Improve general stability.
- Fix an unlocalized label.



3.4.2 (257)
--------------------------

### Improvements

- [trivial] Let input fields in preferences support dark mode (hidden option on the current systems).
- [non-AppStore ver.] Update Sparkle framework.


### Fixes

- Fix an issue under OS X 10.11 where the application crashed with the auto-completion.
- Fix an issue where some syntax keywords were not highlighted correctly.
- Improve general stability.
- [trivial] Fix drawing of capsules for variables in the insertion format setting field.



3.4.1 (253)
--------------------------

### Improvements

- Copy also the executability from the file permission of the original document when duplicating a document.
- [trivial] Improve drawing of capsules for variables in the insertion format setting field.
- [trivial] Adjust preferences panes layout.


### Fixes

- Fix an issue under OS X 10.11 where the application could crash when an item in the outline inspector is clicked.
- Fix an issue where the word completion of which word starts with double underscores (e.g., `__init__`) skipped the second underscore.
- Fix an issue where the application could rarely crash while typing.
- [AppStore ver.] Fix an issue where the options for the software updater for non-AppStore versions were wrongly displayed in the General preferences pane.



3.4.0 (251)
--------------------------

### Improvements

- [beta] Localize newly added strings in Italian.
- [beta] Link help buttons to the latest help pages.



3.4.0-rc (249)
--------------------------

### Improvements

- [beta] Rename “Set Replacement” feature to “Multiple Replacement.”
- [beta] Localize all text added in CotEditor 3.4.0.
- [beta] Add help page about the multiple replacement.


### Fixes

- [beta] Fix an issue the application could crash while typing.
- [trivial] Fix an issue on macOS 10.12 and earlier where the Japanese label of the menu item toggling toolbar visibility did not reflect the current visibility state.



3.4.0-beta.4 (246)
--------------------------

### Fixes

- [beta.3] Fix an issue where application could crash on changing selection in editor view.



3.4.0-beta.3 (245)
--------------------------

### Improvements

- Optimize syntax highlighting performance.


### Fixes

- Fix an issue where the sidebar inspector did close inward when the pane was switched after opening the sidebar outward.
- Fix an issue where snippet key bindings could not be restored to the default correctly.
- Fix an issue where progress spinner for outline menu displayed unwontedly on document opening.
- [beta] Fix an issue where deletion of replacement set items was not saved.
- [beta] Fix a possible crash on window closing.
- [beta][non-AppStore ver.] Fix an issue where options for the application update check in General preferences pane disappeared.



3.4.0-beta.2 (243)
--------------------------

### Improvements

- Enable importing multiple syntax/theme setting files at once.
- Import syntax style files via drag and drop to the Installed Syntax Styles area.
- Avoid merging multiple separators next to each other in the navigation menu into a single separator.
- [beta] Synchronize the selection in the outline inspector with the current cursor position in the focused editor.
- [beta] Replace with a new one when the last replacement definition row was removed, instead of disabling the remove button.
- [beta] Disable the remove button in replacement set panel when nothing is selected.
- [beta][trivial] Adjust outline inspector layout.


### Fixes

- Fix an issue where the cursor position did not follow the line when Move Up command was performed at the end of the document.
- [trivial] Fix some UI text.



3.4.0-beta (241)
--------------------------

### New Features

- Replace matches with preset replacement definition (Find > Show Replacement Set).
- Add outline menu to side bar.
- Select tabbed window with `⌘+number`.
- Parse regular expression pattern in find string field in regular expression mode:
    - Syntax highlight.
    - Highlight matching brace by moving cursor.
    - Select the range surrounded by a brace pair by double-clicking a brace.
- Add a new theme “Resinifictrix”.


### Improvements

- Give haptic feedback on pinch zoom when the scale becomes 100%.
- Adjust background color for selected range in inactive editor to avoid unreadable text, especially by a dark theme.
- Make the current line highlight semi-transparent if editor opacity is not 100%.
- Ignore brackets escaped with `\\` on bracket pair highlight.
- Restore selected inspector pane on window restoration.
- Move “Get Info” and “Show Incompatible Characters” menu items into newly added View > Inspector submenu.
- Update highlight style of icons in the side inspector.
- Delete the feature alerting inconsistent encoding declaration in document on saving.
- Remove `⌘1` shortcut for Console from default key-binding settings.
- Avoid switching to inactive tabbed window only to show a syntax highlighting indicator.
- Remove the workaround for the issue of editor scrolling on early macOS High Sierra that was introduced on CotEditor 3.2.4.
- Update Java syntax style by adding term `var` (Thanks to Marc Prud'hommeaux!)
- [trivial] Use monospaced digits where suitable.
- [trivial][non-AppStore ver.] Update Sparkle framework.
- [dev] Update build environment to Xcode 9.3 (Swift 4.1).


### Fixes

- Fix a possible crash with continuous find/replacement.
- Fix an issue where the font settings cannot be changed on macOS 10.12.
- Fix an issue where the find result in the input field of the find panel did not clear when a new find string was set from the find history menu.



3.3.5 (237)
--------------------------

### Improvements

- Update Swift syntax style for Swift 4.1.


### Fixes

- Fix an issue where application could rarely crash under specific environment on saving.
- Fix an issue where the domain part of URL was ignored when a favicon was dropped from Safari to editor.
- Update YAML syntax style to fix outline extraction with a specific case.



3.3.4 (234)
--------------------------

### Improvements

- When “Indent with Tab key” is on, reduce indent level of the current line with Shift+Tab even when nothing is selected.


### Fixes

- Fix an issue where lossy saving was failed.
- Fix an issue where `⌘←` was ignored when the cursor locates at the end of the document.
- Fix an issue where the save dialog layout corrupted when toggling the visibility of the file browser.
- Fix an issue where no alert was raised on saving even when a document contains lossy yen signs.
- Fix an issue where document syntax was parsed twice on file open.
- Fix a possible crash on print.



3.3.3 (232)
--------------------------

### New Features

- Add an option “Indent with Tab key” to the Edit pane in preferences.


### Improvements

- Change the behavior of `⌘←` so that the cursor moves first to the beginning of the visual lines, then to the column right after indentation, and finally to the beginning of the line.
- Remove “Open Hidden” command (Use “Show hidden files” option in the Open dialog instead).
- Display the Open dialog on launch if so set even when iCloud storage is disabled.
- Improve stability on text encoding change.
- Refine dialog messages on text encoding change.
- Change sidebar behavior to close inward when it was opened inward because of insufficient space.
- Avoid requiring high power GPU use.
- [trivial] Hide insertion point in shortcut input fields in the Key Bindings pane.
- [trivial] Set a spoken name of CotEditor.
- [trivial] Add `enablesAsynchronousSaving` hidden default key that enables asynchronous saving.
- [non-AppStore ver.] Update Sparkle framework.


### Fixes

- Fix a long-standing issue where incompatible characters could not be detected when the length of converted document text is changed.
- Fix an issue where key-binding setting field sometimes ignored user input.
- Fix an issue where wrong file creation date and file permission could be displayed in the document inspector.
- Fix an issue where document files did not forget vertical orientation state when once set before.
- Fix an issue where the encoding selected in the Open dialog last time was unwontedly applied to the newly opened document when a document opened with the Open dialog previously had already opened.
- Fix an issue where menu item title for “Horizontal” (in Format > Writing Direction) was displayed as “Vertical” in Japanese localization.



3.3.2 (229)
--------------------------

### Fixes

- Fix an issue on CotEditor 3.3.1 where the application could crash on window close.
- Fix an issue where application crashed when performing “Find All” with the regular expression and without grouping (Thanks to @akimach!).



3.3.1 (228)
--------------------------

### Fixes

- Fix an issue where the application crashed on launch under specific conditions.
- Fix an issue where the iCloud storage was not enabled.
- Fix arrows in the navigation bar on the vertical text mode.



3.3.0 (224)
--------------------------

### Fixes

- [beta] Fix an issue where iCloud document storage was not created.
- [beta] Fix an issue where find result message in the find panel fields was not shown.



3.3.0-beta.3 (220)
--------------------------

### Improvements

- [beta] Adjust position of invisible line ending character on the RTL writing mode.
- [beta] Tweak the layout of the “Sort by Pattern” dialog.
- Update the style of the User Guide.


### Fixes

- Fix an issue where invisible symbols for control characters were not drawn in input fields in find panel.
- Fix an issue where character inspector could expand vertically too much with some specific characters.
- [beta] Fix an issue where AppleScript (and JXA) could not communicate with some APIs.
- [beta] Fix an issue where the views containing an encoding menu could display nothing under a specific setting condition.
- [beta] Fix an issue where pasted URLs from specific applications missed the domain part.
- [beta] Fix an issue where the current line highlight started at a wrong place on the RTL writing mode.
- Fix some unwanted title case in the preferences.



3.3.0-beta.2 (218)
--------------------------

### Improvements

- Enable “shift right” and “shift left” commands to process multiple selections.
- [beta] Swap actions for “shift right” and “shift left” in the RTL writing mode so that the indentation direction matches to the command name.
- [beta] Add “Keep the first line at the top” option to the pattern sort.
- [beta] Add toolbar item toggling writing direction.
- [beta] Update alignment icons in print pane.
- [beta] Adjust layout of preferences panes.


### Fixes

- [beta] Fix an issue where syntax style list became empty.
- [beta] Fix an issue where page guide was drawn at a wrong position if editor is scaled and the writing direction is RTL.
- [beta] Fix an issue where text did not changed to the RTL writing direction if lines are not wrapped.
- Fix scroll position in the help viewer on jumping to a help page from CotEditor.



3.3.0-beta (216)
--------------------------

### New Features

- iCloud document.
- Open a document in the existing Untitled window that was created automatically on an open/reopen event, if exists.
- New feature “Sort by pattern,” which enables sort selected lines by specific column or fully freely using the regular expression.
- Add new setting option “Reopen windows from the last session on launch” in General pane.
- Add new setting option “including whitespace-only lines” for “trim trailing whitespace” command in General pane.
- Introduce “Right to Left” writing direction by changing the direction from Format > Writing Direction menu.
- More integrated Share feature:
    - Share documents with other people through iCloud drive with “Add People” command in the File > Share menu.
    - Enable sharing a document that has not been saved yet.
    - Remove the feature that shares document content text from the File menu (You can still share selected text from the context menu).
    - Other small improvements.
- Add new commands “Half-width to Full-width” and “Full-width to Half-width” to Text > Transformations menu.
- Add Portuguese localization (thanks to BR Lingo!).
- Add the following encodings to the encoding list (To activate new encodings, restore default once in Preferences > Format > Edit List.):
    - Thai (Windows, DOS)
    - Thai (ISO 8859-11)


### Improvements

- Change the system requirement to __OS X El Capitan 10.11 and later__.
- Add clear button to the input fields in the find panel.
- Gather the “open a new document” “on launch” and “when CotEditor becomes active” options and create new “When nothing else is open:” option.
- Scroll console view after getting a new message to make it visible.
- Display sharing window within the target document window.
- Swap position of “View” with “Format” menu to conform to the Apple's Human Interface Guidelines.
- Move the menu item changing the text orientation into Format > Writing Direction.
- Display full encoding name in the status bar instead of the IANA charset name.
- Add help tags to the Unicode normalization forms in Text menu.
- Append “Option-Command-T” shortcut to “Show/Hide Toolbar” menu item.
- Remove “Color Code Panel” command from the “Window” menu (use “Edit Color Code...” command in “Text” menu instead).
- Remove “share find text with other applications” option.
- Restore the last viewed preference pane when Preferences is opened.
- Add an input field for the editor opacity setting.
- Adjust scroll after toggling line wrap.
- Add scroll margin to the right side of find panel fields dynamically, so that entire inputs can be seen even when find/replacement result is shown.
- Update Python syntax style:
    - Fix highlight of string and bytes literals.
- Tweak acknowledgments window design.
- Some minor UI improvements and fixes.
- Update Japanese localization to conform with the modern macOS localization rules.
- Update the internal source code to Swift 4.
- [non-AppStore ver.] Now, the application updater (Sparkle) can download and update CotEditor automatically, as like before CotEditor was Sandboxed.
    - This feature can actually be used first updating CotEditor 3.3.0 to CotEditor 3.3.1 or later.


### Fixes

- Fix an issue where the word suggestion in the Touch Bar cannot insert a word starts with a symbol correctly, and, therefore, a workaround was added on CotEditor 3.2.3.
- Fix some unlocalized text.



3.2.8 (213)
--------------------------

### Fixes

- Fix an issue where CotEditor occasionally failed sending the standard input to a UNIX script launched from the Script menu.
- Fix an issue where the custom “Surround Selection With” command in Text menu did not use the last input when OK button is pressed.
- Fix an issue where the editing state dots in the installed style list was not updated after editing syntax style.



3.2.7 (212)
--------------------------

### Improvements

- Spread background drawing over paper width on printing.


### Fixes

- Fix an issue where the find panel was over expanded when performing “Find All” with a long find string.
- Fix an issue where the file size in the status bar was not updated after saving.
- Fix an issue where the find panel didn't select the previous field with Shift + Tab keys.
- Fix an issue where the application frozen by opening the File Mapping Conflicts list when filename conflict exists.



3.2.6 (210)
--------------------------

### Fixes

- Fix an issue where backslashes in replacement strings were not unescaped correctly.
- Fix an issue where items in the Script menu were not sorted by prefix numbers.
- Fix a possible crash on handling documents with an invalid shebang.
- Fix Japanese localization.



3.2.5 (208)
--------------------------

### Improvements

- Some minor UI improvements.


### Fixes

- Fix an issue where a vertical orientation document broke the layout on printing.
- Fix an issue where the syntax highlighting indicator could display twice.
- Fix an issue where the separator was selected meaninglessly in the Window pane if the window tabbing setting was set to “Manually.”
- Fix an issue where editor's text orientation was not cascaded to the print operation when the window was restored from the last session.
- Fix the line-wrapping behavior when a line contains a long unbreakable word.
- Fix some missing localized strings.
- Improve general stability.



3.2.4 (207)
--------------------------

### Improvements

- Keep showing the console when CotEditor becomes inactive.
- Make the Key-Bindings for “Bigger” and “Smaller” actions in Font menu customizable.
- Change to display the first line number even the document is empty.
- Rename “Incompatible Characters” toolbar item to “Incompatibles.”
- Some minor UI improvements and fixes.


### Fixes

- [High Sierra] Workaround a system issue where editor views could occasionally not scroll to the end of the document under specific environments on macOS High Sierra 10.13.
    - [for advanced users] This workaround may affect rendering performance by large size documents, because the workaround disables non-contiguous layout on High Sierra (The non-contiguous layout are still used on lower versions). The workaround will be removed in the future when the bug origin is resolved. You can forcibly enable non-contiguous layout support on High Sierra by setting the hidden default key `enableNonContiguousLayoutOnHighSierra` to `YES` in Terminal, although this key is actually for debug-use.
- Fix an issue where “Reset to Default” action in Font menu was ignored.
- Fix an issue where matching brace was highlighted unwontedly also by text finding.
- Fix an issue where the encoding and the line endings in the status bar were occasionally not displayed.
- Fix an issue where the application froze by getting the contents of a large document via the Script menu.
- Fix an issue where the second value of the printed time in the console was not sexagesimal.
- Improve general stability.



3.2.3 (205)
--------------------------

### Improvements

- Disable toggling sidebar while the tab overview mode on High Sierra.
- Update CSS syntax style:
    - Fix an issue where keywords were highlighted incorrectly.
- Some minor improvements and fixes.


### Fixes

- Fix an issue where UNIX scripts could fail getting the contents of the document.
- Fix an issue where font change in the preferences pane could be ignored.
- Fix a potential issue where syntax keywords could be highlighted incorrectly if whitespace accidentally get into keywords definition.
- Workaround an issue where word suggestion in the Touch Bar cannot insert a word starts with a symbol correctly.
- Workaround an issue where the application could crash on document auto-saving.



3.2.2 (203)
--------------------------

### New Features

- Add new `NewDocument` option to `CotEditorXOutput` for UNIX Scripting to put output string to a newly created document.


### Improvements

- Improve Replace All action:
    - Avoid recoloring after Replace All if no text replaced.
    - Improve the progress indicator.
- Change to highlight matching braces just like Xcode.
    - No more beep for unbalanced braces.
- Update JavaScript syntax style:
    - Add .pac extension.
- Update build environment to Xcode 9 (SDK macOS 10.13).


### Fixes

- Fix an issue where the Key Binding setting tables were empty on macOS High Sierra 10.13.
- Fix an issue where current line highlight was occasionally too wide when line height is 1.0.
- Fix an issue where text selection highlight could remain between lines.
- Fix an issue where the theme customization was not applied immediately.
- Fix an issue where the hanging-indent was not updated in specific cases.



3.2.1 (201)
--------------------------

### Improvements

- Adjust character inspector position for vertical tab.
- Update `cot` command-line tool:
    - Avoid creating an extra blank document if `cot` command creates a new window.
    - Fix an issue where launching the application with `--background` option didn't make CotEditor visible.
- Adjust line height calculation.
- [non-AppStore ver.] Update Sparkle framework to version 1.18.1.


### Fixes

- Fix an issue where the File Drop settings couldn't be saved.
- Fix an issue where the regular expression didn't handle `\v` metacharacter correctly.
- Fix an issue where the selection of encoding menu in toolbar didn't restore to the previous one when encoding reinterpretation was failed.
- Address an issue where the application could crash on document saving or text replacement.
- [AppStore ver.] Fix an issue where acknowledgement window was empty.



3.2.0 (196)
--------------------------

### Fixes

- [beta] Fix syntax color highlighting under specific comments and quotes conditions.



3.2.0-beta.2 (194)
--------------------------

### Improvements

- [beta] Update Italian localization.


### Fixes

- [beta] Fix application's code signing.
- [beta] Fix comment highlights.
- [beta] Fix a potential crash.
- [beta] Fix minor UI layout.



3.2.0-beta (193)
--------------------------

### New Features

- Improve File Drop feature:
    - Now, you can add a file drop setting only for a specific syntax style.
    - Add description field to the setting table.
    - Draw capsule for variables in the insertion format setting field.
    - Update the default file drop settings.
- Now, key binding snippets can set cursor position.
- Add “Surround Selection With” actions to “Text” menu.
- Add a new AppleScript/JXA command `write to console` so that users can insert own message to the CotEditor's console.
- Add syntax style for Fortran.


### Improvements

- Change syntax style detection behavior to set to “None” style if no appropriate style can be found on file opening.
- Significantly improve the performance of “Replace All” with a large document.
- Avoid hiding console panel when CotEditor becomes not the frontmost application.
- Reduce highlight parsing time with large size document.
- Improve performance of closing large size document.
- Improve drawing performance of a large size document with a non-opaque background (Not enough good as an opaque one but still better than before).
- Add hidden “Reload All Themes/Styles” menu item to theme/syntax style action menus in Preferences (visible with `Option` key).
- Enable changing text size with a single stroke by pressing and holding Touch Bar's Text Size button.
- Improve invisible character drawing on a non-opaque view.
- Improve auto-brackets/quotes insertion behavior with multiple selections.
- Improve the setting file naming rule for when the name overlaps with an existing setting.
- Improve condition to insert a closing quote automatically.
- Improve the encoding declaration detection.
- Update Ruby syntax style to fix commands highlight.
- Update MATLAB syntax style to fix strings highlight.
- Remove less useful “Inline script menu items into contextual menu” option.
- Update German localization (Thanks to J-rg!).
- And some minor improvements and fixes.


### Fixes

- Fix an issue where the application could hang up when lots of tabbed windows are about open.
- Fix an issue where the selections after “Replace All” in selection shifted one character.
- Fix an issue where the document syntax style could be back to the default if the current style was set manually and the document was modified by another process.
- Fix an issue where the status bar stopped updating after toggling the inspector sidebar.
- Fix an issue where the “Cancel” button in the dialog shown when changing the Auto Save setting in General pane didn't revert the actual setting state.
- Fix an issue where author of a theme was not shown in the Appearance pane.
- Fix an issue where width and height in the window size setting window were swapped.
- Fix an issue where current line highlight occasionally blinked unwontedly.
- Fix a possible crash on highlighting matching brace.
- Fix few memory leaks.



3.1.8 (191)
--------------------------

### Improvements

- Add .swift extension to file types treaded as CotEditor script.
- [non-AppStore ver.] Update Sparkle framework to version 1.17.0.


### Fixes

- Update cot command:
    - Fix an issue where files cannot be opened if the default Python on macOS is version 3.x.
    - Fix a possible hang under specific environments.



3.1.7 (188)
--------------------------

### Fixes

- Fix an issue on MacBook Pro with Touch Bar where the application crashed immediately after launch.



3.1.6 (186)
--------------------------

### Improvements

- Update Python syntax style for Python 3.6.
- Improve line number drawing.


### Fixes

- Fix an issue on OS X 10.11 where the application could crash on saving a document that contains incompatible characters.
- Fix an issue on OS X 10.11 where “No incompatible characters were found.” message in the incompatible characters pane didn't hide even when incompatible characters exist.
- Fix an issue where editor view didn't scroll by dragging on the line number view when the view is zoomed out.
- Fix an issue where a large amount of scrolling down didn't jump to the end of the target.
- Fix an issue with syntax style editor where a newly added row wasn't focused automatically.



3.1.5 (184)
--------------------------

### Fixes

- Fix an issue where the application could crash by auto-completion on OS X 10.10.



3.1.4 (182)
--------------------------

### New Features

- Update `cot` command-line tool.
    - Enable using wildcard for file path argument.


### Fixes

- Fix an issue where the application crashed by the Highlight command under the condition when the find string is a invalid regular expression pattern even the regular expression is turned off.
- Fix an issue where the application could crash on El Capitan when a side inspector is about to open.
- Fix an issue on the text search where the single text search couldn't find the word intersects with the current selection.
- Fix an issue where the metadata of a custom theme cannot be edited.
- Fix an issue where the background of the line number view was drawn with wrong color when entered to the fullscreen mode.
- Fix an issue on the regular expression Replace All with multiple selections where user cancellation didn't stop search immediately.



3.1.3 (180)
--------------------------

### New Features

- Now, AppleScript's script bundles can specify execution mode to enable running the script inside the application Sandbox (thanks to Kaito Udagawa!).


### Improvements

- Optimize script menu updating performance.
- Change behavior to avoid showing incompatible char list on undoing encoding change.
- Evaluate also the shebang to specify the syntax style on saving the document newly.
- Scale up character view in character inspector.
- Change drawing font for some invisible characters to draw them at a better position.
- Update JavaScript syntax style.
- Add more description about scripting in the User Guide.
- Deprecate hidden settings for UI update interval.
- Update build environment to Xcode 8.2.1 (SDK macOS 10.12.2).
- [non-AppStore ver.] Update Sparkle framework to version 1.16.0.


### Fixes

- Fix an issue where the application could crash after lossy encoding change.
- Fix an issue where the find string was not synchronized with other applications.
- Fix an issue where the regular expression anchors `^` and `$` could match wrongly on the normal “Find Next/Previous” under specific conditions.
- Fix an issue where incompatible characters highlight could highlight wrong characters if line endings are CR/LF.
- Fix an issue on AppleScript where a single replacement with the regular expression didn't refer to the matches.
- Fix an issue where some touch bar icons were drawn wrongly.
- Fix an issue where the menu item “About Scripting” in Help > “CotEditor Scripting Manual” didn't work.
- Fix an issue where the zoomed character in the character inspector was flipped when the popover is detached.
- Fix an issue where `lossy` option in `convert` command by AppleScript scripting was ignored.
- Fix an issue on the AppleScript scripting where `range` property of `document` contents could be wrong if document line endings are not LF (thanks to Kaito Udagawa!).
- Fix an issue where the editor opacity couldn't be set via AppleScript.
- Fix minor typos.



3.1.2 (177)
--------------------------

### New Features

- Add Scripting hook feature for document opening/saving (thanks to Kaito Udagawa!).
    - See “Adding scripting hooks for CotEditor scripts” from the Help menu > “CotEditor Scripting Manual” > “About Scripting” for details.
- Support AppleScript's script bundle (.scptd) for scripting (thanks to Kaito Udagawa!).
- Add a new AppleScript property `expands tab` for document object (thanks to Kaito Udagawa!).


### Improvements

- Change the outline navigation arrows direction in the navigation bar if text orientation is vertical.
- Add help tags to the line endings menu in the toolbar.
- Improve calculation of the vertical position of line numbers.
- Tweak the behavior of the incompatible character table and the find result table to highlight the correspondent range in the editor every time when clicking a row in the table.
- Update default settings about the visibility of invisible characters.
    - From this change, the invisible character settings can be reset. If so, please reset from the “Appearance” pane in the preferences.
- [non-AppStore ver.] Update Sparkle framework to version 1.15.1.


### Fixes

- Fix a possible crash on changing document's encoding lossy.
- Fix an issue where application crashed if syntax editor panel becomes too small.
- Fix an issue where the print icon in the toolbar didn't work.
- Fix an issue where editor views didn't update after changing the body font or the visibility of the other invisible characters.
- Fix an issue where no error message raised when a text encoding reinterpretation failed.
- Fix an issue where the current line highlight also highlights the last line when the cursor is in the second last line.
- Fix an issue where the title of the menu item toggling invisible character visibility didn't reflect the frontmost window state.
- Fix an issue where the text size slider in the Touch Bar didn't update if text size was updated excepting via Touch Bar while the slider is shown.
- Address an issue with drawing area of zoomed character view in character inspector popover.
- Fix a typo in the English menu.


### Misc.

- You can now find CotEditor scripts on [GitHub Wiki](https://github.com/coteditor/CotEditor/wiki/CotEditor-Scripts).



3.1.1 (174)
--------------------------

### Fixes

- Fix a critical issue on CotEditor 3.1.0 where documents can't be opened under some specific environments.



3.1.0 (172)
--------------------------

### New Features

- Improve window tabbing on macOS Sierra:
    - Add an option to set window tabbing behavior (in Window pane).
    - Open multiple files in a single window with tabs when the window tabbing behavior is set as “Automatically” (or “In Full Screen Only” in system-wide).
- Support Touch Bar on the new MacBook Pro.


### Improvements

- Display the number of replaced in the replacement string field after Replace All in the find panel.
- Display the IANA charset name conflict alert as a document-modal sheet.


### Fixes

- Fix an issue where the application could crash on a large amount of text change.
- Fix an issue where the application crashed when try to save a document with Non-lossy ASCII encoding.
- Fix an issue where some kind of files could not be opened via Service.
- Fix an issue where text fields in find panel cut off the end of long lines.
- Fix an issue where the alert about the conflict with IANA charset name was not displayed.
- Fix syntax highlight of quoted text of which quotation delimiter consists of multiple characters.
- Improve general stability.



3.0.5 (170)
--------------------------

### Fixes

- Fix an issue where scripts didn't put results on the document/console.
- Fix an issue where the editor area was occasionally stacked under the window toolbar on macOS 10.12.
- Fix an issue where MarsEdit via the App Store didn't update its contents after closing the document in CotEditor.
- Improve general stability.



3.0.4 (167)
--------------------------

### Improvements

- Update build environment to Xcode 8.1 (SDK macOS 10.12.1).


### Fixes

- Fix an issue where scripts didn't put results on the document/console.
- Fix an issue where find all results didn't open anymore under the specific conditions.
- Fix an issue where MarsEdit didn't update its contents after closing the document in CotEditor.
- Improve general stability.



3.0.3 (165)
--------------------------

### New Features

- Add the following encodings to the encoding list (To activate new encodings, restore default once in Preferences > Format > Edit List.):
    - Arabic (Windows)
    - Greek (Windows)
    - Hebrew (Windows)


### Improvements

- Adjust glyph size calculation.
- Improve performance of Find All and Replace All.
- Disable customizing key bindings for window tabbing actions (Because it's impossible to handle them correctly.)
- Update Swift syntax style to add some missing keywords.
- Improve error message on script error.


### Fixes

- Fix an issue where default syntax style didn't highlight document until the first save.
- Fix an issue where selection range after some text actions was wrong.
- Fix an issue where document icons were blurry in non-Retina display.
- Fix an issue where status bar layout collapsed if status line overflows.
- Fix an issue where document theme reloaded unnecessarily on the first time Appearance pane display.
- Fix an issue where the application could crash when a script was failed.
- Fix an issue where scrolling to the end of the document with `⌘`+`↓` shortcut didn't scroll to the end.
- Improve general stability.



3.0.2 (163)
--------------------------

### Fixes

- Fix an issue where the application could rarely freeze after replacing large document.
- Fix an issue where new syntax style couldn't be created.
- Fix an issue where new value of last edited text field in preferences was occasionally discarded.
- Fix an issue where replacement string was not registered to the replacement history.
- Fix an issue where horizontal scroll bars in the find panel fields were disappeared.
- Fix a possible crash on application termination.
- Fix a possible crash on opening document.
- Fix error message of syntax style validation.
- Improve general stability.



3.0.1 (161)
--------------------------

### Improvements

- Add “Complete” action to “Edit” menu.
- On macOS Sierra, the default shortcut for completion action was changed to `⌥⎋`.
- Move action items in the menu “Edit” > “Transformations” to “Text” > “Transformations.”
- Transform word contains the cursor if nothing is selected on transformation or Unicode normalization actions.


### Fixes

- Fix an issue where the application could crash while editing text on Yosemite.
- Fix an issue where the application could crash on split editors under the specific conditions.
- Fix an issue where the application could crash on running an AppleScript/JXA.
- Fix an issue where text completion list didn't occasionally display.
- Fix an issue where syntax highlighting progress indicator was always full.
- Fix an issue where sidebar couldn't be opened on Yosemite.
- Fix an issue where key bindings of recent documents were customizable.
- Fix an issue where the application crashed when a folder is dropped on the application icon.
- Fix an issue where find panel position was not saved.
- Fix an issue where no beep sound was made when there was no match on find/replace.
- Fix an issue where the application could freeze after replacing large document.
- Fix an issue where editable area didn't spread to the full width after changing text orientation when contents were empty.
- Fix an issue where matched brackets in unfocused split editors were highlighted without the need while editing one of split editors.
- Improve general stability.



3.0.0 (154)
--------------------------

### Improvements

- Make text font, theme and tab width restorable from the last session.
- [beta] Make seek-bound for find text using regex more naturally.


### Fixes

- Fix an issue where page guide remained after toggling page guide visibility.
- [beta] Fix an issue where the application crashed after user turned the “Give execute permission” checkbox in the save panel on.
- [beta] Fix an issue where the application crashed when a file opens via Service.
- [beta] Fix an issue where toggling status bar visibility didn't work.
- [beta] Fix an issue where text layout orientation was not restored from the last session.
- [beta] Fix an issue where key binding modification in preferences could fail.
- [beta] Fix an issue where submenus in the Script menu displayed in the menu key bindings setting view.
- [beta] Fix an issue where invisible settings were not applied to editors immediately.
- [beta] Fix an issue where “Comment always from line head” option didn't reflect user state.
- [beta] Fix selection after uncommenting when “Append a space to comment delimiter” option is disabled.
- [beta] Fix text wrapping behavior with vertical orientation.
- [beta] Address an issue where the find panel was occasionally collapsed on the first load.
- [beta] And some trivial fixes.



3.0.0-rc.2 (150)
--------------------------

### Improvements

- Exclude file extension from the initial selection in the document save panel.


### Fixes

- [beta] Fix syntax highlight parsing range while editing.



3.0.0-rc (148)
--------------------------

### New Features

- Add Italian localization (thanks to Agostino Maiello!).


### Improvements

- Enable Autosave and Versions by default.
- [beta] Improve sideview behavior.
    - Open sideview outward also on Yosemite.
    - Sync states of sidebar among tabs in a window more correctly.
    - Fix some unwanted behavior around sidebar.
- [beta] Update the User Guide.


### Fixes

- [beta] Fix an issue where the application could crash on document file sync.
- [beta] Fix an issue where the application could crash on termination.
- [beta] Fix an issue where document could silently be updated by an external document file update even if user doesn't set to “Update to modified version.”
- [beta] Fix an issue where smart dashes substitution state could be set wrongly.
- [beta] Fix an issue where auto indent style detection didn't work.
- [beta] Fix an issue where files were treated as dropped-files instead of just inserting filenames when files are copied-and-pasted from the Finder.
- [beta] Fix an issue where the find panel was occasionally collapsed.
- [beta] And some trivial fixes.



3.0.0-beta.3 (146)
--------------------------

### Fixes

- [beta] Fix an issue where the application froze when text search is wrapped.
- [beta] Fix an issue where initial window position was not stored.
- [beta] Fix another memory leaks.



3.0.0-beta.2 (144)
--------------------------

### Improvements

- Auto-sync Script menu with script folder.
    - Now, you don't need anymore to update script menu after script folder modification.
- Display “Not Found” in the find string field in the find panel also when “Find All” failed.
- [beta] Add option “Unescape replacement string” to find panel (On by default).
- [beta] Improve drawing of font fields in preferences.


### Fixes

- Fix an issue find string is not shared with other applications after quitting CotEditor.
- Address an issue with drawing area of zoomed character view in character inspector popover.
- [beta] Fix an issue where current line highlight was occasionally too wide when line height is 1.0.
- [beta] Fix an issue where the result view in the find panel expands wrong way on Yosemite.
- [beta] Fix an issue where divider in the find panel remains after closing result view.
- [beta] Fix an issue where smart indent didn't work.
- [beta] Fix an issue where syntax highlighting flicked while inputting Japanese text.
- [beta] Fix an issue where an input character with Unicode hex didn't work.
- [beta] Fix an issue where text view drawing remained in line number view when text view scaled up.
- [beta] Fix an issue where bottom window corners weren't rounded under the specific conditions.
- [beta] Fix an issue where some window states were not restored.
- [beta] Fix some memory leaks.



3.0.0-beta (142)
--------------------------

### New Features

- Support window tabbing on macOS Sierra.
    - Add “New Tab” action to File menu.
    - Sync sidebar visibility among tabs in a window.
- Display recent used syntax styles at the top of the toolbar syntax style popup list.
- Add individual “Block Comment,” “Inline Comment,” and “Uncomment” actions in Text menu unlike the “Comment Selection” action changes its behavior intelligently.


### Improvements

- Support __macOS Sierra 10.12__ and drop support for __OS X Mountain Lion__ and __Mavericks__.
- Migrate all source code from Objective-C to Swift.
- Update application icon.
- Update find panel search algorithm:
    - Change the regular expression engine from Onigmo to the ICU library.
        - From this, the reference symbol of matches is changed from `\1` style to `$1`.
    - Update line-up of the search options.
- Inserting single surrogate character is no more valid.
- Update document window toolbar.
- Update preferences icons.
- Update key binding setting format.
    - Not compatible with previous key bindings setting. Please customize again in the preferences window.
- New acknowledgments window.
- Update Swift syntax style to Swift 3.0.
- Update Coffee Script syntax style for the block regular expression.
- Improve syntax highlighting algorithm with symbols.
- New “Go To Line” panel.
- Remove the following less important text actions:
    - Insert Encoding Name with “charset=”
    - Insert Encoding Name with “encoding=”
- Remove the following less important toolbar items:
    - Show / Hide Navigation Bar
    - Show / Hide Line Numbers
    - Show / Hide Status Bar
- Remove the feature that changes the line height of current document from the “Format” menu.
    - From this, `line spacing` property on AppleScript is also deprecated.
- Remove “Not writable” alert which displayed on file opening.
- Remove “Set as Default” button in the editor opacity panel.
- Change specification not to treat full-width spaces as indent.
- Open sidebar inward on Yosemite.
- Add help buttons to syntax style editor.
- Make indent deletion more naturally.
- Remove byte count display in document inspector.
- Display also an accurate file size in document inspector.
- Display dialogs for changing file encoding as a document-modal sheet.
- Display also an accurate file size in document inspector.
- Move scripting manual into the User Guide.
- Make window size setting window translucent.
- Avoid expanding status bar into side inspector.
- Improve line height calculation.
- Keep visible area after toggling text-wrapping.
- Improve scrolling with line number view drag.
- Better syntax highlighting while editing.
- Enable activate “Show Invisibles” action even if all of the invisible characters were set as not shown when the document was opened.
- Update build environment to macOS Sierra + Xcode 8 (SDK macOS 10.12).


### Fixes

- Fix an issue where some of script APIs returned always string with LF line endings.



2.5.7 (138)
--------------------------

### Fixes

- Fix German localization (Thanks to J-rg!).
- Fix Markdown and Verilog syntax styles.
- Fix update range of syntax highlight while editing.
- Fix key binding setting error message.
- Fix an issue where syntax validation result view was editable.
- Address an issue where editor's drawing area could become wrong after scaling font size by vertical text.



2.5.6 (135)
--------------------------

### New Features

- Add newly rewritten syntax styles for C and C++.
    - From this change, previous “C, C++, Objective-C” syntax style is deleted.
- Add syntax styles for MATLAB and Verilog.


### Improvements

- Update Markdown syntax style:
    - Support strikethrough with `~~` that is defined in the GitHub flavored Markdown.
    - Support emphasis with triple `*` and `_`.
- Focus back on the find panel after performing “Find All,” “Replace All,” and “Highlight.”
- Change to use the body text color for line numbers on printing that was previously always black.
- Improve scroll behavior with arrow keys.
- Improve compatibility with macOS Sierra beta.
- And some other trivial improvements.


### Fixes

- Fix document counting as followings:
    - “Char Count” counts composite characters as well as CR/LF as single characters and omits counting line endings if “Count each line ending as one character” option is off.
    - “Length” counts bytes in UTF-16 literally and always counts line endings even if “Count each line ending as one character” option is off.
    - “Location” and “Column” count characters just like “Char Count.”
- Fix an issue where the selected marks of line height / tab width in the Format menu disappeared.
- Fix an issue where unselected last line number could be highlighted if the text orientation is vertical.
- Fix an issue where invisible characters were drawn off to the side if the text orientation is vertical.
- Fix an issue where tab width was reset to default when split editor.
- Fix an issue where documents were marked as “Edited” just after document duplication if line ending is not the default one.
- Fix an issue where detected indent style was applied not only on file opening but also every time when file reverted.
- Fix an issue where “Find All” result view did not open on OS X Mountain Lion.
- Fix an issue where incompatible character markup could break if undo/redo lossy encoding change continuously.
- Fix an issue where key bindings of some submenu containers were customizable.
- Fix an issue where tab width could be set as `0`.
- Fix an issue where tab width changing via AppleScript changes only the tab width in the focused editor rather than all split editors.
- Fix an issue where byte length display did not update after changing file encoding.



2.5.5 (130)
--------------------------

### New Features

- Add syntax style for Git.


### Improvements

- Update Julia and Swift syntax styles.
- Apply the change of line height/tab width to all split editors so that split editors not focused also can layout text correctly after the change.
- Optimize text rendering performance a bit.


### Fixes

- Fix an issue where editor area was not focused when document opens.
- Fix an issue where width of tab character could be wrong with specific fonts.
- Fix an issue where selection highlight remained between lines under specific conditions.
- Fix an issue where the current line highlight didn't update under the specific condition.
- Fix an issue where unwanted dirt was drawn if use the Google Japanese Input.
- Fix an issue where file path display in inspector was not updated when document file is moved.
- Fix an issue where wrong data were displayed in document inspector when a window of an unsaved document is resumed.
- Fix an issue where hanging indent was applied when document style is changed even it is turned off.
- Fix an issue where custom syntax style/theme couldn't be removed from the style list if the definition file is already deleted.
- Fix an issue where “Copy as Rich Text” was enabled even if no text is selected.
- Fix an issue where URL links were removed when editor is split.
- Fix an issue where line height broke if font whose editor is split is changed via font panel.
- Fix an issue where the first insertion was registered to the undo history on opening document with the selection in another application via Services.
- Fix an issue where the key binding for “Re-Color All” was forced to reset to the default `⌥⌘R` if syntax style list is updated.



2.5.4 (127)
--------------------------

### Fixes

- Fix an issue where the application didn't work on Mavericks and earlier.
- Fix an issue where syntax was occasionally parsed twice on window restoration.



2.5.3 (125)
--------------------------

### New Features

- Add new normalization form “Modified NFD” (unofficial normalization form adopted by HFS+) to the Unicode normalization action in Text menu (Thanks to DoraTeX!).


### Improvements

- Improve line-height handling with composite font:
    - Remove “Fix line height with composite font” option, and now, the height of lines is always uniform.
    - Update line-height calculation to fix that the line height by “Fix line height with composite font” option was a bit higher than actual line height of the used font.
        - From this change, the line height will get reduced than the previous versions. Please reset the line-height to your favorite number on the Appearance pane in the preferences.
    - Improve line-height calculation.
- Optimize performance to apply syntax highlight to document significantly.
- Now, the setting changes of status bar, appearance, tab and invisible chars are applied to documents immediately.
- Update INI syntax style.
- Remove spelling auto correction option.
- Remove “Delay coloring” option.
- Enable move between input fields in syntax style editor with Tab key.
- Apply font-face to font fields in preferences.
- Apply document line height on “Copy with Style.”
- Reflect the state of “Increase contrast” option in system Accessibility setting to custom UI.
- Adjust preferences layout.


### Fixes

- Fix an issue where word-wrap broke mid-word when a line is indented.
- Fix an issue where hanging indent reset if font is changed.
- Fix an issue where some highlight definitions in Comments, Strings or Characters types were ignored.
- Fix an issue where syntax was always highlighted even if syntax highlight is disabled.
- Fix an issue where the application crashed if empty character is input from the Unicode hex panel.
- Fix an issue where syntax highlight was rarely not updated when style definition is modified.
- Fix line numbers position when text scaled.



2.5.2 (123)
--------------------------

### Fixes

- Fix an issue where invisible characters could not be hide.
- Fix an issue where the application could crash if the “Replace All” button was clicked continuously.
- Fix an issue where the application crashed on closing default window size setting window.
- Fix line-wrapping behavior when the line contains a long unbreakable word.



2.5.1 (120)
--------------------------

### Improvements

- Change underline style of outline items.
- Update JavaScript syntax style:
    - Improve outline definitions to support the class syntax sugar introduced in ECMAScript 6.
    - Better coloring for “get” and “set”.


### Fixes

- Fix an issue where the application could crash on opening empty file.
- Fix an issue where `cot` command could fail creating new empty file.
- Fix an issue where selected line numbers were not drawn in bold font.



2.5.0 (117)
--------------------------

### Improvements

- [beta] On pinch-zoom, hold a bit at the actual scale.
- [beta] More optimize document opening performance with large file.
- Better error message on file opening.
- Tweak some label text in preferences.


### Fixes

- [beta] Fix an issue where wrapping text by scaled text size wrapped text at a wrong width.
- [beta] Fix an issue where actions of the action (gear) menu in the syntax setting could be failed.
- [beta] Fix an issue where line numbers were shifted a bit if the first character is not drawn with the specified font.



2.5.0-beta (113)
--------------------------

### New Features

- Add independent “Unicode (UTF-8) with BOM” encoding to encoding list.
    - Respect the existence of the UTF-8 BOM in opened files.
    - Enable switching the document encoding between with and without BOM from the toolbar popup button and the “Format” menu.
        - The “Unicode (UTF-8) with BOM” item will be automatically added to just after the normal “Unicode (UTF-8).”
- Now, the execute permission can be given to the file to save from the save panel.
- Add spelling auto correction option (in “Edit” pane).
- Add a new theme “Lakritz.”


### Improvements

- Update `cot` command-line tool:
    - Create a new file if a non-existent file path is passed in with `--new` option.
- Revert “Highlight” and “Unhighlight” actions in “Find” menu.
- Improve font-size changing behavior:
    - Smoother pinch-zoom.
    - Now font-size change applies only to the focused editor.
    - Enable pinch-zoom to make font smaller than default font size.
    - Font size changing doesn't affect the actual font anymore but just scale characters visibly.
    - Fix an issue where font-size changing could remove hanging indent.
    - Fix an issue where layout of split editors will be broken if the font of one of the other split editors is changed.
- Separate the “Enable smart quotes and dashes” into “Enable smart quotes” and “Enable smart dashes” (in “Edit” pane).
- Apply the following text actions to the whole document if no text is selected:
    - Indentation > Convert Indentation to Tab / Spaces
    - Lines > Sort
    - Lines > Reverse
    - Lines > Delete Duplicates
- Optimize document opening performance with large file.
- Add “Copy as Rich Text” action to the contextual menu.
- Improve recovering status of unsaved documents on window resume.
- Improve line number view drawing with selection on vertical text mode.
- Improve invisibles drawing:
    - Optimize drawing performance (ca. 2x).
    - Better drawing if anti-aliasing is off.
- Display the following dialogs as a document-modal sheet:
    - The dialog asking encoding compatibility on saving.
    - The print progress panel.
- Avoid registering indentation conversion action to the undo history if no text was changed.
- Suppress trimming whitespace at the editing point on auto-saving when “Trim trailing whitespace on save” is on.


### Fixes

- Fix an issue where printing area could be cropped.
- Fix an issue where the background of navigation/status bars were not drawn under a specific condition.
- Fix an issue where the numbers in the line number view could be drawn in a wrong place if the editor is vertical text mode and unwrapped.
- Fix an issue where document could not be drawn until the end of the file on legacy OS if the file contains control characters.
- Fix an issue on Mavericks and earlier where the application hung up if tried to print line numbers by vertical text layout on printing.
- Fix an issue where line numbers could be drawn at a bit shifted position or even cropped on printing.
- Fix XML document icon.
- Fix some unlocalized text.



2.4.4 (111)
--------------------------

### New Features

- Add “Trim Trailing Whitespace” action to “Text” menu.
- Add option to trim trailing whitespace automatically on save (in “General” pane).


### Improvements

- Reimplement highlighting found string groups with different colors.
- Update BibTeX syntax style:
    - Add .bibtex extension.
    - Add some field names.
- Update Python syntax style:
    - Remove a duplicated term.
- Now, the change of the page guide column option is applied to opened documents immediately.
- Tweak text in preferences.
- Update the User Guide.
- [non-AppStore ver.] Update Sparkle framework to version 1.14.0.


### Fixes

- Fix an issue where “Delimit by whitespace” option on text find didn't work.
- Fix an issue where some document file information displayed wrong after saving.
- Fix an issue where line number view could count wrong if wrapped.
- Fix an issue where printing color theme couldn't be changed to “Black and White” on print panel.
- Fix an issue where print preview collapsed if paper size is changed on print panel.
- Fix an issue where “ignore case” option in syntax style definition didn't actually ignore case.
- Fix an issue where the current file extension was omitted from new suggested filename on “Save As…” operation.
- Fix some typos in German localization. (Thanks to Chris Eidhof!)



2.4.3 (108)
--------------------------

### Improvements

- Turn regular expression option off automatically by using selected text for search.
- Update `cot` command-line tool:
    - Add `--wait` (`-w`) option to wait until a newly opened window closes.
    - Optimize command performance.
    - Fix an issue where command cannot open file whose path includes non-ASCII character.
    - Fix an issue where `--line` option didn't work under specific environments.
    - Fix an issue where `--line` and `--column` options didn't move cursor to the desired location if file has blank lines at the end.
- Now, the change of “link URL” option is applied to opened documents immediately.


### Fix

- Fix an issue where documents were marked as “Edited” just after opening file if “link URL” option is enabled.
- Fix an issue where URL link was not applied to pasted text.
- Fix an issue where find-all highlight wasn't removed if find panel is closed before closing find result view.
- Fix an issue where toggling invisible visibility didn't work correctly.
- Fix an issue where the cursor located at the end of document after file opening.
- Fix an issue where thousands separators weren't inserted to document information under specific environments.
- Address an issue where paste was rarely failed under specific environments.



2.4.2 (105)
--------------------------

### Fixes

- Fix an issue on CotEditor 2.4.2 where document window couldn't be opened on Mountain Lion.



2.4.1 (103)
--------------------------

### Improvements

- Update JSON syntax style:
    - Fix float number highlight.
- Avoid displaying `NULL` on the status bar until the first calculation is finished.


### Fixes

- Fix an issue where the text finder's “ignore case” option in the text finder was ignored on CotEditor 2.4.0.
- Fix an issue where the current line number display was wrong if the cursor is in the last empty line.



2.4.0 (101)
--------------------------

### Improvements

- Increase the number of significant digits in file size display.
- Update Shell Script syntax style:
    - Fix variable highlight with `_`.
- [beta] Disable “Balance brackets and quotes” option by default.
- [beta] Don't insert closing bracket if already auto-typed.
- [beta] Update “General” pane layout.



2.4.0-beta (97)
--------------------------

### New Features

- New option balancing brackets and quotes (in “Edit” pane).
- New option making URL in document clickable link (in “General” pane).
- On El Capitan, hidden file visibility can be toggled via checkbox in the document open panel.
- Add the following encodings to the encoding list:
    - Arabic (ISO 8859-6)
    - Hebrew (ISO 8859-8)
    - Nordic (ISO Latin 6)
    - Baltic (ISO Latin 7)
    - Celtic (ISO Latin 8)
    - Western (ISO Latin 9)
    - Romanian (ISO Latin 10)


### Improvements

- Improve text finder:
    - Now, “Find All” action also highlights all matched strings in the editor, and thereby “Highlight” action is removed.
    - Change advanced find option setting from popup menu to popover.
    - On Yosemite and later, a visual feedback is shown when the search wrapped.
    - Keep selected range after “Replace All” with in-selection option.
    - Display a total number of found in find panel on simple find actions.
    - Now, “Find All” and “Replace All” actions are able to process multiple selections.
    - Add Python syntax to the regular expression syntax options.
    - Revert “Use selection for Replace” action to allow using an empty string.
    - Update layout and style.
- `cot` command now opens symbolic link target rather than the link itself.
- On El Capitan, make option control of the document open panel visible.
- Improve syntax highlighting for quoted strings and comment.
- Display alert if file to open seems to be a kind of a media (binary) file.
- Improve file encoding detection.
- Update default priority order of encoding detection.
- Improve character compatibility check.
- Better error message on file opening.
- Take a safety measure for in case the key binding setting file is corrupt.
- Truncate outline label in the navigation bar by appending ellipsis if it overflows.
- Move some options position within “General” pane and “Edit” pane in the preferences window.
- Rename the main text input area in window from “View” to “Editor.”


### Fixes

- Fix cursor location after moving lines with empty selection.
- Fix line-wrapping behavior when the line contains a long unbreakable word.
- Fix an issue where the application crashed by an invalid find regular expression option combination.
- Fix an issue where the application could crash just after starting dictation.
- Fix an issue where key binding setting could fail.
- Fix an issue where the scroll bar style didn't change to light color on dark background theme.
- Fix an issue where the character inspector didn't appear on Mavericks and earlier.
- Fix an issue where split orientation setting wasn't applied.
- Fix an issue where “Jump to Selection” action didn't jump to selection in editor if another text box is focused.
- Fix an issue where some table cells didn't change their text color when selected.
- Fix tiny memory leaks.



2.3.4 (95)
--------------------------

### Improvements

- Improve line numbers view for multiple selections.
- Now, “Select Line” action works with multiple selections.
- Close character inspector when text selection was changed.
- Reproduce previous selection by undoing line actions.
- Improve syntax highlighting performance.


### Fixes

- Fix an issue where comment-out action didn't work on CotEditor 2.3.3.
- Fix an issue where window title bar was dyed in the editor's background color on El Capitan.
- Fix an issue where text selection after move multiple lines was broken.
- Fix an issue where `$` or `^` anchors in the regular expression via AppleScript didn't work with document that has non-LF line endings.
- Fix an issue where syntax highlighting indicator became occasionally unclosable under the specific condition on document opening.



2.3.3 (91)
--------------------------

### New Features

- Add “Share” menu to File menu.


### Improvements

- Now, you can force-disable window restoration from the last session if you hold Shift key while launch.
- Improve “Input Character in Unicode Hex” panel:
    - Display proposed character info.
    - Allow also taking a 1 to 3 digits point code.
    - Avoid auto-closing panel after entering character.
- Improve character inspector:
    - Display more comprehensible name for control characters (e.g., `<control-0000>` to `NULL`).
    - Display an alternate visible symbol in the zoomed character area for C0 control characters.
- Improve installed syntax style list in preferences:
    - Add dot mark to style names in the list to represent the state if the style is customized.
    - Enable restoring modified syntax style directly from the list without opening the style editor.
- Now, the current line number is drawn in bold font, and always drawn in vertical text mode.
- Select whole text wrapped with quotation marks by double-clicking one of the quotation marks if it is already syntax-highlighted.
- Keep text selection after inserting color code from the color code panel.
- Add “description” field also to outline setting in syntax style editor.
    - From this, update most of bundled syntax styles.
- Add jump to URL button to the style info in the syntax style editor.
- Improve drawing of “Other” invisible characters.
- Improve behavior on Replace/Replace All actions.
- Improve text encoding detection to redress the tendency: a binary file was interpreted as ISO-2022-JP.
- Revert style of popup menus in toolbar on Mavericks and earlier.
- Update line number font.
- Update default fonts.
- Tweak preferences layout.
- Tweak Chinese localization.
- Improve general stability.


### Fixes

- Fix an issue where the application tended to crash by trying opening binary file.
- Fix an issue where line breaks between paths of dropped files were missing.
- Fix an issue where the application crashed when a single character that is a part of surrogate pair is inspected.
- Fix an issue where snippet key bindings could not be customized on Mavericks and earlier.
- Fix an issue where syntax highlight was not updated after reinterpreting encoding.
- Fix an issue where panels could lose target document.
- Fix layout of character popup on Mavericks and earlier.
- Fix an issue where “Recolor All” action was always enabled even if syntax style is “None.”



2.3.2 (89)
--------------------------

### New Features

- Add “Convert Indentation to Spaces/Tabs” actions to Text > Indentation menu.
- Add syntax styles for METAFONT (Thanks to M.Daimon!), AWK, Git Config, and Git Ignore.


### Improvements

- Improve character inspector:
    - Display also Unicode block if selected letter consists of one character.
    - Display Unicode names of each character if selected letter consists of multiple characters.
    - Fix drawing area of zoomed character view.
    - Fix some other trivial issues.
- Add option to suppress “not writable document” alert.
- Improve text selection by clicking line numbers view.
- Tweak style of popup menus in toolbar.
- Add “description” field that doesn't affect to highlighting but for commenting for each term to the syntax style and syntax style editor.
- Add Swipe to Delete action on El Capitan to tables in syntax style editor.
- Improve text encoding detection for UTF-32.
- Update Python syntax style:
    - Add several commands and variables that are in `__foo__` form.
    - Add .pyi extension.
- Update Perl syntax style:
    - Add some terms.
- Update PHP syntax style:
    - Add terms added on PHP 5.6.
    - Highlight uppercase `TRUE`, `FALSE`, `AND` and `OR`.
- Update Haskell syntax style:
    - Add some keywords.
- Update DTD, Markdown, reStructuredText and Textile syntax styles to move comments to the description field.


### Fixes

- Fix an issue where text view drawing was distorted while resizing window.
- Fix an issue where line endings of a document that has a line ending character at the beginning of the file cannot be interpreted its line ending type correctly.
- Fix an issue where character inspector returned always `U+000A` (LF) for line ending even the actual line ending of the document is not LF.
- Fix character count with a single regional indicator symbol.
- Fix wrong undo action name on encoding conversion via script.



2.3.1 (85)
--------------------------

### New Features

- Add “Duplicate Line” action to Text > Lines menu.


### Improvements

- Update Python syntax style:
    - Add terms added in Python 3.5.
- Update R syntax style:
    - Fix boolean values were not highlighted correctly.
- Update Shell Script syntax style:
    - Add .command to extension list.


### Fixes

- Fix an issue where some type of script file cannot be opened because of “unidentified developer” alert even it was made on CotEditor.
- Fix an issue where unwanted completion list was displayed by auto-completion when after typing a symbol character.
- Fix an issue where the application could crash if the width of line number view will change.



2.3.0 (82)
--------------------------

### New Features

- Add “Copy with Style” action to the Edit menu.


### Improvements

- Update R syntax style:
    - Add “Rscript” to interpreters.
- Bundle cot command to `CotEditor.app/Contents/SharedSupport/bin/` again.
- Tweak UI text.


### Fixes

- Fix an issue where the application could be launched on unsupported system versions.
- Fix an issue where the baseline of new line invisible characters was wrong if line is empty.
- Address an issue where syntax highlighted control character was sometimes not colored in the invisible color.
- [beta] Fix syntax highlighting issue with multiple lines.



2.3.0-beta (80)
--------------------------

### New Features

- Introduce Auto Save and Versions as an option (in General pane).
- Add new actions handling selected lines to the new Text menu > Lines.
    - They are also added to the AppleScript terms.
- Detect indent style on file opening and set tab expand automatically.
- Add “Spell Check” button to toolbar icon choices.
    - Customize toolbar to add it to your toolbar.
- Add syntax styles for D, iCalendar, and “Rich Text Format.”


### Improvements

- Reconstitute main menu.
- Embed key bindings editor to Key Bindings pane.
- Update Shell Script syntax style:
    - Completely rewrite.
- Update INI syntax style:
    - Add .url to extension list.
- Update JavaScript syntax style:
    - Add “z” to attributes.
- Temporarily hide the “Live Update” checkbox in the find panel since this feature by OgreKit framework has actually not worked correctly in the latest versions.
- Update Onigmo regular expression engine to 5.15.0.


### Fixes

- Fix an issue where no file path was inserted if file type of the dropped file was not registered to the file drop setting.
- Address syntax highlighting issue with multiple lines.
- Fix an issue where text view drawing was distorted while resizing window.
- Fix an issue where the application could crash on window restoration.
- Fix some typos in syntax styles Julia and SQL.



2.2.2 (78)
--------------------------

### New Features

- Add new normalization form “Modified NFD” (unofficial normalization form adopted by HFS+) to the Unicode normalization action in Utility menu (Thanks to doraTeX!)
    - cf. <http://tama-san.com/hfsplus_normalize/> (in Japanese)
    - It is also added to the AppleScript terms.


### Improvements

- Update JSON syntax style:
    - Add .geojson to extension list.


### Fixes

- Fix an issue where the baseline of invisible characters was wrong by some fonts.
- Fix an issue where the application could crash after modifying theme name on El Capitan.
- Fix an issue where submenu disclosure arrows in the menu key binding editor did occasionally disappear.
- Fix timing to update search string to system-wide shared find string.
- Fix an issue under the specific conditions where the migration window showed up every time on launch.



2.2.1 (75)
--------------------------

### Fixes

- Fix an issue where the application could crash on typing Japanese text if hanging indentation is enabled.



2.2.0 (74)
--------------------------

### Fixes

- [non-AppStore ver.] Fix an issue where update check failed on El Capitan.



2.2.0-rc.2 (74b)
--------------------------

### New Features

- Add new themes “Anura” and “Note.”


### Improvements

- Remove bundled `cot` command-line tool, due to the Mac App Store guidelines.
    - To use `cot` command with CotEditor 2.2.0 and later, download it from <http://coteditor.com/cot> and install manually. You cannot use the previous one with CotEditor 2.2.0.
- Improve saving error dialog to display more detailed error reason.
- Avoid beeping on typing an unmatched `>` even if `<>` brace highlighting turned on.
- Update Swift syntax style:
    - Add new terms available in Swift 2.0.
- Improve contextual menu for theme/syntax style list on preferences.
- Tweak syntax style edit sheet layout.
- Remove sample scripts.
    - You can get them online on [Archives](https://coteditor.com/archives) page.
- Update documents.
- [beta] Improve side inspector switcher.


### Fixes

- Fix an issue where theme color was occasionally not applied to the preview in the print panel.
- Fix an issue on El Capitan where page guide was drawn at the wrong column.
- Fix an issue where the application crashed when typing a part of surrogate pair character.
- Fix an issue where invisibles which are a surrogate pair occasionally did not display.
- Fix an issue where the toolbar button state of the text orientation was not updated on window restoration.
- Fix the layout of the User Guide.
- [rc] Fix an issue where table headers had sometimes unwanted space around them on Yosemite and earlier.
- [rc] Fix an issue where calculation of hanging indent width was sometimes incorrect.
- [beta] Fix an issue where an unwanted migration window was displayed on the first launch even when there is nothing to be migrated.
- [beta] Fix an issue where the application could possibly crash on window restoration.
- [Non-AppStore ver.] Fix an issue where updater setting in the General pane did not display on OS X Mountain Lion and Mavericks.



2.2.0-rc (71)
--------------------------

### New Features

- Hanging indentation that enables inserting extra indent to wrapped lines.
    - You can change the behavior in Preferences > Edit.
- Add new normalization form “NFKC Casefold” to the Unicode normalization action in Utility menu (Thanks to doraTeX!)
    - It is also added to the AppleScript terms.
- Add German localization.


### Improvements

- Change the location where `cot` command-line tool is bundled from `CotEditor.app/Contents/MacOS/` to `CotEditor.app/Contents/SharedSupport/bin/`, due to Sandbox requirement.
    - Users who have already installed `cot` command need re-install it manually.
      You can re-install it running the command below on Terminal:

          unlink /usr/local/bin/cot; ln -s /Applications/CotEditor.app/Contents/SharedSupport/bin/cot /usr/local/bin/cot

      You may need to modify paths in this command depending on where you've installed CotEditor/cot.
- Improve Color Code Editor:
    - Add stylesheet keyword to color code type.
    - Add stylesheet keyword color list to editor panel.
    - Make editor panel resizable.
- Now syntax style is automatically set to XML on file opening if no appropriate style can be found but the file contents start with an XML declaration.
- Update word completion list setting in Edit pane in Preferences (The previous setting has been reset).
- Support “swipe to delete” for some tables in Preferences on El Capitan.
- Improve contextual menu for theme list on preferences.
- Adjust highlight color for find panel.
- Tweak some message terms.
- Update documents.
- Update build environment to OS X El Capitan + Xcode 7 (SDK 10.11).
- [non-AppStore ver.] Update Sparkle framework to version 1.11.0.
- [beta][non-AppStore ver.] Change to not check pre-release versions on default.
    - New pre-releases are always subject to the update check no matter the user setting if the current running CotEditor is a pre-release version.


### Fixes

- Fix an issue where the command-line tool could rarely not be installed from Integration pane.
- Fix an issue where the application could crash after when closing multiple split views.
- Fix an issue where the application crashed by clicking header of empty table in syntax editor sheet.
- Fix an issue where warning on Integration pane didn't disappear even after the problem resolved.
- Fix an issue where unwanted invisible character marks were drawn when tab drawing is turned off and other invisibles drawing is turned on.
- Add some missing localized strings in Japanese.
- [El Capitan] Fix an issue where color code view did not display on El Capitan.
- [beta] Fix an issue where the strings that were inserted via script or tools could be styled wrong.
- [beta] Fix an issue where no preferred extension was appended on the document save panel.
- [beta] Fix an issue where the bug report template was not syntax highlighted.
- [beta] Fix some trivial drawing issues on El Capitan.



2.2.0-beta
--------------------------

### New Features

- CotEditor is now __Sandboxed__.
- New setting option for the behavior on document modification by external process (in General pane).
- Share button in toolbar (Customize toolbar to use it).
- Save text orientation state to the file and restore it when the file is opened.
    - __for advanced users__: In this feature, CotEditor saves an *extended attribute* which named `com.coteditor.VerticalText` to the file *only when* the editor's text orientation is vertical. You can even disable the feature running the command `defaults write com.coteditor.CotEditor savesTextOrientation -bool NO` in Terminal.
- Line number view for vertical text orientation.
- Print with vertical text orientation.
- Add interpreter name list to the syntax style definition to determine syntax style from the shebang in the file contents for in case when syntax style cannot be determined from the filename.
    - From this change, some of the bundled syntax styles are also updated.
- Add `encoding:` and `coding:` to the encoding declaration keywords which will be used on encoding auto-detection (interpreting priorities are: `charset=` > `encoding=` > `@charset` > `encoding:` > `coding:`).


### Improvements

- [non-AppStore ver.] Disable auto-update feature.
    - Since the Sparkle framework which is a software update framework we use doesn't support Sandboxed apps yet, the auto-update feature within CotEditor should be once disabled. The new behavior is: a notification window will be shown when a new release is available (as before), then you need to update CotEditor manually getting the new version from our web-site. Or, just migrate to the Mac App Store version when the stable CotEditor 2.2.0 is released.
- Deprecate the feature opening/saving files that user doesn't have the permission, due to Sandbox requirement.
- Improve side inspector UI.
- Improve syntax highlighting:
    - Optimize general syntax highlighting performance (ca. 1.8x).
    - Optimize syntax highlighting on file opening.
    - Better coloring parsing while editing.
    - Update all split editors while editing.
- Move scripts folder location from `~/Library/Application Support/CotEditor/ScriptMenu/` to `~/Library/Application Scripts/com.coteditor.CotEditor/` due of the Sandbox requirement.
    - Users need to migrate their script to the new folder manually since CotEditor doesn't have the write permission to the new location.
- Improve print document:
    - Update header/footer layout to conform to the standard system header/footer design.
    - Add page setup options to the print panel.
    - Print settings preset can be stored in the print panel.
- Better file encoding handling on revert action.
- Set access-group `com.coteditor.CotEditor.edit` to CotEditor's script definition.
- Change behavior to save `com.apple.TextEncoding` xattr on saving if the file had no contents.
- Improve window restoration:
    - To restore also the last scroll position and cursor position.
    - To restore also the last syntax style mode of unsaved documents.
- Completely rewrite `cot` command-line tool:
    - Faster launch.
    - Make sure to launch CotEditor that invoked cot command includes.
- Optimize saving process.
- Improve compatibility with OS X El Capitan 10.11.
- Change source code license from the GNU General Public License version 2 to the Apache License version 2.0.
- [non-AppStore ver.] Add option to check pre-release versions.


### Fixes

- Fix an issue where the full path display in the document inspector did not update after the document file moved.
- Fix an issue where the find panel could not find matched strings when the find string includes CR or CR/LF line endings.
- Fix an issue where line numbers were not drawn completely on OS X 10.8 when scroll bars are set as always shown.
- Fix an issue where some ligatured characters were drawn at a wrong position when the line height for composite font is fixed.
- Improve general stability.



2.1.6
--------------------------

### Fixes

- Improve stability on saving (Thanks to zom-san!).



2.1.5
--------------------------

### Fixes

- Fix an issue where auto-indent between curly brackets puts some spaces to a wrong place.



2.1.4
--------------------------

### New Features

- Importing theme files via drag-and-drop to theme list in preferences.


### Improvements

- Support displaying skin tone variations of Unicode 8.0 on the character inspector.
- Support Automatic Termination (Now, CotEditor can be terminated automatically if it has no window).
- Display invisible vertical tab (`U+000B`) with `␋` symbol if “Show other invisible characters” turns on.
- Add fancy animations to encoding list edit sheet in preferences.
- Add suppression button to the IANA charset name conflict alert.
- Improve word completion with words that exist in the document.
- Modify layout of “General” pane in Preferences.
- Add help tag hint to controls in the find panel.
- Optimize image resources size.
- Update Sparkle framework to version 1.10.0.


### Fixes

- Address an issue where the application could hang up on document saving.
- Fix an issue where the autosaving could sometimes be disabled.
- Fix an issue where the layout of the text fields in the find panel could rarely be broken.
- Fix an issue where the auto-update notifier did not recognize a new stable version from specific beta version numbers.
- Fix an issue where some 3rd-party text editors for OS X cannot interpret files which were created by CotEditor.
- Fix an issue where an unwanted alert did show on the first save after reverting back.
- Fix an issue where selection after modifying sort of extension priority in syntax style edit sheet was wrong.
- Fix an issue where “Help” menu item duplicated in the menu bar on the second launch.
- Add some missing Localized strings in simplified Chinese. (Thanks to Wei Wang!)
- Improve general stability.



2.1.3
--------------------------

### Improvements

- Revert find panel behavior to select always whole text in find field when the panel is called.


### Fixes

- Fix line number drawing with large line numbers.
- Fix an issue where the external modification notification did not work.
- Improve general stability.



2.1.2
--------------------------

### Improvements

- Change place to create backup files (Now, backup files are always created in `~/Library/Autosave Information/`).
- Improve find panel:
    - Add scroll bars to the text fields.
    - Show invisible characters in text fields.
    - Now, “Swap Yen and backslash keys” option is also applied to the fields in the find panel.
    - Remove “Escape Character” option for regular expression search.
- Add “Cyrillic (Windows)” to the encoding list.
- Optimize launching speed of `cot` command-line tool.


### Fixes

- Fix an issue where the application could hang up on saving backup file.
- Fix an issue where unwanted find panel was shown when perform “Use Selection for Find” or “Use Selection for Replace” action.



2.1.1
--------------------------

### Fixes

- Fix an issue where octal file permission in the document inspector was wrong.
- Fix an issue where the application could hang up on text editing.
- Improve general stability.



2.1.0
--------------------------

### Improvements

- [beta] Add `--new` option to `cot` command-line tool.
- Update the User Guide.


### Fixes

- Fix an issue where some document icons were not applied under the specific environments.
- [rc.2] Fix an issue where syntax style was suddenly reset while editing on new document.
- [beta] Fix an issue where “Shift Left” action with whole text makes application hang up.
- [beta] Fix an issue where “Shift Right” action at blank line inserts unwanted indent to the next line.
- [beta] Fix an issue where split orientation setting was ignored.
- [beta] Fix an issue where text replacement could occasionally fail.
- [beta] Fix an issue where closed windows remained in memory.
- [beta] Fix an issue where the application hangs up on opening documents with the specific filename on Mountain Lion.
- [beta] Fix line number drawing with non-opaque view on Mountain Lion.



2.1.0-rc.2
--------------------------

### New Features

- Now your documents are automatically backed-up while editing and will be resumed at the next session, even after force quitting.
    - This feature doesn't modify your actual files. You still need to perform “Save” manually to apply changes to your files.


### Improvements

- [beta] add a missing localization in simplified Chinese. (Thanks to Wei Wang!)



2.1.0-rc
--------------------------

### Improvements

- Update Sparkle framework to version 1.9.0.
- [beta] close popover on clicking regex help button if it's already shown.


### Fixes

- Fix an issue where tab width on printing didn't reflect user indent setting.
- Fix an issue where tab width didn't update on font size change.
- [beta] Fix an issue where the application could crash on Mountain Lion.
- [beta] Fix an issue where `cot` command cannot be installed on Mavericks and earlier.
- [beta] Fix some layout issues on Mountain Lion.



2.1.0-beta.2
--------------------------

### Improvements

- Make key bindings for panel windows customizable.
- [beta] Enhance Find & Replace panel:
    - Revert “Highlight” button in find panel.
    - Remove “Replace & Find” button from find panel and add “Select Next Match after Replace” option.
    - Now, return with Shift key in find text field finds text backwards.
    - Always bring focus to the find text field when find panel is called.


### Fixes

- Fix an issue where the help button on Edit pane and Format pane didn't show correct help page.
- [beta] Fix an issue where `cot` command couldn't open relative path.
- [beta] Fix an issue where find panel could fail to set escape character.
- [beta] Fix an issue where find panel occasionally did not update setting of regex ability and syntax.



2.1.0-beta
--------------------------

### New Features

- `cot` command-line tool.
- New AppleScript property `tab width` for document object.
- Now, CotEditor script receives the absolute file path of the frontmost document as an argument if available.
- Add “New CotEditor Document with Selection” and “Open File in CotEditor” Services.
- Add syntax styles for Erlang and Julia.


### Improvements

- Drop support for __OS X Lion.__
- Migrate document drawer to sidebar style.
    - Add “show document inspector” option to preferences.
    - Improve document information display.
- Introduce brand-new find panel with more organized UI.
    - OniGmo is still be using for the regular expression engine as before.
    - Settings for find panel has been once reset. You can set them again from the gear button in the find panel.
- Enable to change multiple checkboxes in syntax style editor at once.
- Improve to display gear icon in menu bar while executing a script.
- Improve auto-outdent behavior with `}` input.
- Improve auto-tab-expand behavior with intent that tab characters and spaces are mixed.
- Add hidden “Reveal in Finder” menu item to syntax style action menu in Preferences (visible with `Option` key).
- Improve CotEditor Script to apply the result to the document that was frontmost when the script was launched.
- Close Preferences window with ESC key.
- Character inspector popover becomes detachable (on Yosemite and later).
- Update about Console Panel:
    - Rename “Script Error Panel” to “Console Panel.”
    - Change toolbar style.
    - Beautify output message style.
- Prefer using user custom syntax style if the file mapping conflicts with other bundled style.
- Change to save `com.apple.TextEncoding` xattr only if the file already has the encoding xattr or it's a new document.
- Move removed themes/styles to Trash instead delete them immediately.
- Now, Utility actions perform with multiple selections.
- Avoid showing not-writable alert on Resume again.
- Delay timing to save text key bindings setting.
- Localize document types.
- Improve text rendering with non-opaque view.
- Update Markdown syntax style:
    - Add horizontal rules to outline menu.
- Tweak text view drawing performance.


### Fixes

- Fix an issue that the preferred file encoding for encoding detection could be set wrong after running file open panel.
- Fix an issue that incompatible character markup positions were wrong by CR/LF line endings.
- Fix duplication check in key bindings editor.
- Fix “Restore Defaults” button ability on text key bindings edit sheet.
- Fix possible crashes on input.
- Fix an issue that application could crash after closing split view.
- Fix an issue that application could crash after switching theme in preferences.
- Fix an issue that application couldn't open file that is not Unicode, has more than 4,096 characters and consists only of 2-byte characters.
- Fix an issue that text font could occasionally change after pasting or inputting text from other application.
- Fix an issue that number of selected lines displayed less than actual count if last selected lines are blank.
- Fix an issue that Unicode character insertion was occasionally failed.
- Fix an issue that syntax highlights were removed after performing Unhighlight.
- Fix timing to display sheets on file open.
- Fix an issue that selection of line endings menu and encoding menu in toolbar did not update on undo/redo.
- Fix an issue where “Go To” dialog could duplicate and then most of the controls were disabled.
- Fix an issue that checkmark in line height menu was not displayed.
- Fix some missing localizations in simplified Chinese. (Thanks to Wei Wang!)
- Fix an issue that an alert message was not localized.
- And other trivial UI fixes and enhancements.



2.0.3
--------------------------

### New Features

- Add Chinese (Simplified) localization. (Thanks to Wei Wang!)
- Add feature to scale font size up by pinch gesture.


### Improvements

- Add “Traditional Chinese (Big 5 HKSCS),” “Traditional Chinese (Big 5-E),” and “Traditional Chinese (Big 5)” to encoding list.
- Add “show invisible characters” option to set the visibility of all invisible character types at once.
    - From this, invisibles visibility of displayed windows can be toggled even all invisibles are hidden as default.
- Now, the popup menus in toolbar can be called directly even on “Text Only” mode without mode change.
- Now, window states will resume from the last session.
- Change default syntax style from “None” to “Plain Text.”
- Improve syntax highlighting performance.
- Remove delay when an AppleScript/JavaScript is run for the first time after application launch.
- Update CSS syntax style:
    - Add several keywords. (Thanks to Nathan Rutzky!)
- Update JSON syntax style:
    - Improve highlighting performance.
- Improve find panel behavior with Spaces.
- Disable rich text in find panel.


### Fixes

- Fix page guide position and tab width.
- Fix an issue that “Go” button in “Go To” sheet didn't work by clicking.
- Fix an issue that line endings menu in toolbar whose document had been newly created was always set to LF.
- Fix an issue that cancellation of syntax extracting didn't work immediately under the specific conditions.
- Fix an issue that selecting inside of brackets by double-clicking didn't work.
- Fix an issue that script execution with large size output could cause application hang up.
- Fix a possible issue that syntax highlighting while text editing could cause application crash.
- Fix an issue that application could hang up when no text font is found.
- Fix an issue that highlights weren't updated after “Replace All” under Japanese localization.
- Fix an issue that the Auto-Completion feature couldn't enable from the preferences under Japanese localization.



2.0.2
--------------------------

### Fixes

- Fix a critical issue that the application hang up if either file encoding or line endings is shown in status bar.



2.0.1
--------------------------

### New Features

- Introduce new AppleScript commands `comment out` and `uncomment` for selection object.
- Add .js extension to CotEditor script type.
    - __Hint__: Use `#!/usr/bin/osascript -l JavaScript` for shebang to run script as Yosemite's JavaScript for Automation.
- Add “Create Bug Report…” action to the Help menu.
- Add syntax style for BibTeX.


### Improvements

- Display an alert if the opening file is larger than 100 MB.
- Change the default value for “Comment always from line head” option to enable.
- Rename labels for line endings.
- Update Python syntax style:
    - Fix highlighting `print` command.
- Update Ruby syntax style:
    - Improve highlighting `%` literals.
- Update R syntax style:
    - Add filename `.Rprofile` to file mapping.
- Update JavaScript syntax style:
    - Highlight shebang as a comment.
- Update documents for scripting with AppleScript.
- Update sample scripts.
- Remove syntax style for eRuby.


### Fixes

- Fix an issue that new documents couldn't occasionally be saved with an extension that is automatically added from syntax definition.
- Fix an issue that the application could crash after closing split view.
- Fix an issue that some objects couldn't be handled via JavaScript for Automation on Yosemite.
- Fix an issue that syntax style validator didn't warn about keywords duplication that were newly added.
- Fix an issue that syntax style mapping conflict tables were always blank.
- Fix an issue that quoted text and block comments at the end of document weren't highlighted.
- Fix an issue that text kerning was too narrow with non-antialiasing text (thanks to tsawada2-san).
- Fix an issue that text view scrolls to the opposite side when line number view is dragged.
- Fix an issue that `contents` of document property couldn't be set via AppleScript.
- Fix an issue that word selection didn't expand correctly under the specific conditions.
- Fix an issue that current line highlight didn't update after font size change.
- Fix an issue that navigation/status bars are shown for a moment on window creation even they are set as hidden.
- Fix an issue that newly added row in file drop setting occasionally disappear immediately.
- Fix some Japanese localizations.



2.0.0
--------------------------

### Improvements

- Rename “Spelling” menu item to “Spelling and Grammar” in Edit menu, and also add “Substitutions” and “Transformations” items
    - From this, remove “Uppercase,” “Lowercase,” and “Capitalize” in “Utility” menu.
- Update Apache syntax style:
    - Indent outline items.
- Change not to include menu items that manage the script menu in the context menu.
- [beta] Change the line-up of substitute characters for full-width spaces.
- [beta] Add `public.text` to document types.
- [rc] And trivial aesthetic tweaks.


### Fixes

- Fix an issue that “Open a new document when CotEditor becomes active” option did not work correctly.
- Fix an issue that the encoding select in file open panel was ignored.
- [beta] Fix a possible issue that the Go To panel could open even no document window exists, and the application was going to hang after executing it.
- [beta] Fix an issue that disclosure icons in the menu key bindings editor disappeared rarely.
- [beta] Fix an issue that window objects were remain after closing windows.
- [beta] Fix an issue that text view expands/contracts occasionally on window resize.
- [beta] Fix an issue that the script icon in context menu was missing.
- [beta] Fix an issue that several UI in Japanese localization were displayed in Aqua Kana font.
- [rc] Fix an issue that line number view did occasionally not update after text editing.



2.0.0-rc
--------------------------

### New Features

- Add syntax styles for Rust and Tcl.


### Improvements

- Apply theme color to the line number view.
- Change the bundle identifier from `com.aynimac.CotEditor` to `com.coteditor.CotEditor`.
- Improve key bindings edit sheets.
- Update YAML syntax style:
    - Improve outline extracting rules.
- Deprecate “Drag selected text immediately” setting.
- Tweak result messages by syntax style validator and partially localized.
- Move version history from rich text format to one of the User Guide.
- Improve background drawing:
    - On Mountain Lion and later, scrolling performance on semi-transparent views has been improved.
    - On Mountain Lion and later, text view gets no drop-shadow by text on semi-transparent.
- Avoid the move to previous outline item button to select the first “<Outline Menu>” item.
- Deprecate text color setting for line number view which is hidden setting.
- Remove the output type keyword `Pasteboard puts` for CotEditor script, that was deprecated on CotEditor 0.7.2 and had remained for backwards compatibility.
- [beta] Display migration panel on the first launch.
- [beta] Improve launch speed.
- [beta] Tweak Japanese localization of preferences.
- [beta] Allow inputting non-roman characters on syntax style meta fields.
- [beta] Adjust layout of preferences.
- [beta] Adjust highlight color for incompatible chars.
- [beta] Adjust animation duration of toggling navigation bar and status bar.
- [beta] Brush up images.
- [beta] Update documents.


### Fixes

- Avoid horizontal scrollers on key bindings edit sheets.
- Fix help buttons on preferences panes.
- [beta] Fix an issue that semi-transparent text views flicked on scrolling on Yosemite.
- [beta] Avoid horizontal scrollers on syntax edit sheets in Japanese localization.
- [beta] Fix an issue that coloring label names were partially missing in syntax style validator.
- [beta] Fix syntax colorings of Haskell, LaTeX, and PHP styles.
- [beta] Fill missing help tags of some toolbar icons in the English localization.
- [beta] Fix a possible issue that syntax highlighting could not be updated after style edit.



2.0.0-beta.2
--------------------------

### Improvements

- Rename some labels in print setting.
- [beta] Update AppleScript syntax style:
    - Update commands that were changed on CotEditor 2.0.
- [beta] Tweak toolbar icons on preferences window.
- Tweak a label name in incompatible chars in Japanese.


### Fixes

- [beta] Fix an issue that some colors could not be edited in theme edit view under Japanese localization.
- [beta] Fix an issue that line wrap toggling behaves something strange if contents are short.
- [beta] Fix an issue that document info could not scroll.
- [beta] Fix an issue that contents of document info in drawer disappear on OS X Lion.



2.0.0-beta
--------------------------

### New Features

- Coloring theme feature.
- Comment toggling feature.
- Add “types,” “attributes,” and “variables” to syntax highlighting colors.
- Now, syntax style can be determined not only from file extensions but also from filenames.
    - From this, rename “Extensions” in syntax edit sheet to “File Mapping.”
- Add metadata fields for syntax styles.
- Append a correspondent extension to the filename on saving.
    - The top extension in the extension list in the syntax style definition will be used.
    - From this, setting for “Append “txt” on saving” was deprecated.
        - If you want to keep using “txt” as default extension, set “Plain Text” syntax style as default style in Preferences > Format.
- Add “Toggle Text Orientation” icon to the toolbar.
- Add option to split views vertically.
- Select lines via clicking/dragging line numbers.
- Add “Select Line” command to “Edit” menu.
- Add syntax styles for AppleScript, C#, Go, Lisp, Lua, R, Scheme, SQL, SVG, and Swift.
- Auto-complete feature (experimental implementation, turned off by default).


### Improvements

- Support OS X Yosemite.
- Update application icon with Yosemite style.
- New default coloring scheme.
- Improve performance drastically:
    - Extracting outline list on a background thread.
        - From this, non-response time till coloring indicator sheet has been shown reduced drastically.
        - Display message for outline extracting in navigation bar until the first extracting ends.
    - Perform extracting syntax highlights on a background thread.
    - Cache results of syntax highlighting, and use them as long as documents are not modified.
    - Improve cursor moving and file opening performance when the current line is highlighted.
    - Improve invisible chars drawing performance (4x faster).
    - Improve line number drawing performance (6x faster).
    - Improve scrolling on Mountain Lion and later.
    - For performance, change the range to scan encoding declaration up to 2,000 characters from the head of the document.
- Change syntax style file format from plist (XML) to YAML.
    - Legacy user styles will be migrated automatically on the first launch of CotEditor 2.0.
    - New user syntax style files are stored in `~/Library/Application Support/CotEditor/Syntaxes/`. The old styles are kept in `SyntaxColorings/`, since CotEditor 2.0 doesn’t use
- Now, IC (ignore case) can be set even RE (regular expression) is set in syntax style editing.
- Change regular expression engine to extract outlines from OniGmo (OgreKit) to ICU (NSRegularExpression).
    - Remove `$&` definition that represents a whole matched string (Use `$0` instead).
- Change tab width to 4 characters in the outline menu.
- Improve coloring indicator:
    - Improve to perform cancel button correctly.
    - On Mavericks and later, you can work with other documents while a coloring dialog is shown.
    - Display current task as a message in a sheet.
    - Change not to reset syntax style to “None” when the user cancels coloring.
    - Change not to remove current coloring when the user cancels coloring.
    - Cancel with ESC key.
- Define document types for CotEditor in more details and also add document icons for each.
- Scroll line by line with an arrow key.
- Adjust indent automatically on return just after `{` and `}` if Auto-Indent is on. (thanks to Naotaka-san).
- Update all of bundled syntax styles.
- Update CSS syntax style:
    - Support CSS level 3.
- Update Perl syntax style:
    - Add some keywords.
    - Add `=pod` and `=cut` to comment coloring.
    - Add .pm to extensions.
- Update JSON syntax style:
    - Add .cottheme to extensions.
- Update LaTeX syntax style:
    - Add .cls and .sty to extensions.
    - Update outline menu style.
- Update YAML syntax style:
    - Support YAML 1.2.
    - Some fixes.
- Update Ruby syntax style:
    - Support % notation.
    - Add special variables.
    - Improve number literals.
    - Support here document.
    - and some more fixes.
- Update Java syntax style:
    - Improve number literals.
    - Support annotation.
    - and some more fixes.
- Update JavaScript syntax style:
    - Completely rewrite.
- Update Haskell syntax style:
    - Improve number literals.
    - Add escape chars.
- Separate DTD (Document Type Declaration) syntax style from XML.
    - From this, coloring performance with XML syntax style was improved.
- Updates about scripting support:
    - Migrate AppleScript API definition file to sdef format.
    - Rename `unicode normalization` command to `normalize unicode`.
    - Update internal code for `range` property of `text selection` objects.
        - From this, your __compiled__ AppleScripts (.scpt) that contain `selection` handling need to be updated manually. See “Scripting with AppleScript” document in “Help” menu for details.
    - Update documents about scripting with AppleScript.
- Count characters by composed character sequence in the status bar and the info drawer.
        - The previous count was actually the length of the string in UTF-16 that is internal string expression on OS X (for example, a surrogate pair is counted previously as 2 and now as 1).
- Rename previous “Char Count” to “Char Length” and add another “Char Count” with the new count method for status bar items.
- Change key to display hidden menu items in “File” menu to “Option.”
- Add `.` and `:` to word separators that are used for selecting a word with a double click.
- Improve messages on character info inspector with surrogate pairs and variation selectors. (thanks to doraTeX-san)
- Disable alert asking for save when blank & unsaved document will be closed. (thanks to Naotaka-san)
- Brush up toolbar icons.
- Now, the font size of line numbers follows editor font size.
- Draw page guide in text color.
- Improve syntax editor sheet so as to edit documents even the sheet is shown. (on Mavericks and later)
- Improve application icon so as not to react with dropped folders.
- Improve cancellation behavior of word completion.
- Rename “Inspect Glyph” to “Inspect Character.”
- Delay timing to store user’s menu key bindings.
    - The user setting for menu key bindings on CotEditor 1.x will be reset on the first launch of v2.0.
- Change line height value to line height based, that includes the height of the line itself.
- Change the default line-height value to 1.3.
- Add thousand separators to values in document info.
- Change date format in document info drawer.
- Tweak status bar design.
- Add backquotes `\`` to quotation marks which are accommodated when color comments.
- Change Go To panel to a sheet.
- Add an animation when toggling the visibility of the navigation bar and the status bar.
- Fix used font for invisible characters.
- Update some of the alternative characters for full-width space char.
- Improve the appearance of the encoding list edit sheet.
- Improve window size setting fields in preferences to move fields with the tab key.
- Add hidden setting key `layoutTextVertical` (boolean) to set text orientation vertical as default.
- Deprecate font setting for navigation bar which is hidden setting.
- Update documents.
- Update Sparkle framework to 1.8.0.
- [dev] Update build environment to OS X Yosemite + Xcode 6.1 (SDK 10.10).


### Fixes

- Fix an issue that “Share find strings with other applications” option didn’t work.
- Fix an issue that comments weren’t highlighted correctly if another comment delimiter is contained in the string that is enclosed in quotes before the comment delimiter.
- Fix an issue that variation selectors, kind of invisible characters, disappeared occasionally.
- Fix an issue that encoding selection in toolbar was reset after changing of encoding list order.
- Fix over-wrapped text in the status bar to truncate with “…”.
- Fix an issue that unfocused windows performed also re-coloring after “Replace All.”
- Fix an issue that page guide was occasionally drawn at a wrong place if a fallback font is used.
- Fix to highlight current line only in focused view of split views.
- Fix an issue that text lines vibrated during moving caret if text orientation is vertical and line height is fixed.
- Fix an issue that line numbers in unfocused views were not updated.
- Fix an issue that lately added toolbar icons didn’t represent the state at the moment.
- Fix an issue that an error was output in the console if the blank area of incompatible chars table was clicked.
- Fix an issue that editors didn’t change to transparent if the opacity setting in preferences window was changed from 100%.
- Fix an issue that changes in the custom line height panel wasn’t applied immediately.
- Fix an issue that “Same as Document” selection for invisible chars in print panel didn’t work correctly.
- Fix an issue that line count got one more extra if the selection contains return at the end.
- Fix an issue that `range` property of `text selection` objects was displayed as wrong `character range` on AppleScript Editor.
- Fix some sample scripts which didn’t run correctly.
- Fix an issue that some settings did not display in Preferences on OS X Lion.