4.6.6R

• Fixed UniversalTickSmoother moving incorrectly with non-Vector3.one scales.

• Fixed despawning root NetworkObjects with pooling causing nested NetworkObjects to not respawn automatically.

• Fixed conditional NullReferenceCondition in SceneCondition.

• Fixed nested runtime NetworkObjects not having their parent unset when their runtime parent was pooled.

• Fixed possible NullReferenceException within generated comparers for reference types.

• Fixed prediction reconciles corrupting class instance memory.

• Fixed NetworkTransform.ComponentConfiguration incorrectly making rigidbodies kinematic.

• Fixed limited memory leak on server related to predicted spawning.

• Fixed failed Predicted Spawns potentially pooling on clients, when expected to destroy.

• Fixed DefualtObjectPool now calls ResetState on nested NetworkObjects as well.

• Fixed possibility of nested NetworkObjects with modified InitializationOrder initializing before their parents.

• Fixed nested NetworkObjects not spawning when pooling.

• Improved logging for NetworkObject ObjectId fetching.

• Improved UniversalTickSmoother.SetSmootherProperties now allows specifying if for owner or spectator.

• Improved reduced NetworkBehaviour memory allocations.

• Improved Predicition attributed methods no longer need to be private.

• Improved ReserializenetworkObjects now uses Configuration settings when searching for prefabs.

• Added LoadSceneParameters to supported automatically serialized types.

• Added ObjectPool.AddPrefabObjects which returns added objects (#863).

• Added DefaultObjectPool.ClearPool(NetworkObject) to clear cache for specified NetworkObject type.

• Changed reverted NetworkObjects despawning when disabled.

• Changed restructured file paths; this may require you to delete FishNet before importing this version.

• Changed Tugboat.StopSocketsOnThread now defaulted to false.

4.6.5R

• Fixed instance of Multipass Id not found error.
• Fixed rare chance of Observers not removing a disconnected client when using multiple transports and only one is disconnected.
• Fixed internal NetworkInitialize methods are now called before OnStartNetwork even if the object is disabled.
• Improved SyncVar initial value will not overwrite synchronized value in the condition object receives synchronized value while disabled, and is later enabled for the first time.
• Fixed OnStop callbacks not occuring on nested objects when disconnecting the transport socket.
• Added TimeManager.HalfRoundTripTime.
• Added Beta Recursive Despawns for internal change.
• Fixed NetworkTransform.LastObserversRpcTick not resetting.
• Improved adaptive interpolation to be more consistent and efficient.
• Fixed harmless errors when using DebugManager Validate Rpc Lengths.
• Added Tugboat.StopSocketsOnThread to stop local connections using a thread (default/current behavior).
• Improved Tugboat now tries to stop the socket if detected as started when starting a new connection.
• Fixed unicode strings not writing proper length.
• Fixed large replicates not splitting into multiple packets.
• Added UniversalTickSmoother.Set/GetAdditionalGraphicalOffsetValues.
• Fixed SyncType.ResetState NullReferenceException.
• Fixed UniversalTickSmoother interpolation times changing eratically resulting in smoothing pausing.
• Fixed RigidbodyPrediction demo 'boostStart' check (#870).
• Fixed NewNetworkBehaviour template missing file exception.
• Fixed warning when Time/PredictionManager would try to simulate physics with a 0f timescale (#860).
• Fixed NetworkTransform stuttering spectated objects as host when using a send interval larger than 1.
• Fixed prediction corrupting class instance memory.

4.6.4R hf0

• Fixed NetworkBehaviour template paths not working properly for package manager releases (#858, #859).
• Improved debug output on Validate Rpc Lengths.
• Fixed MethodAccessException from codegen failing to change ReplicateDataContainer from Internal to Public.
• Fixed yet another incorrect using being automatically added by Jetbrains rider.

hf0:

• Improved Validate Rpc Lengths debug text.
• Fixed TickNetworkBehaviour incorrectly subscribing for LateUpdates.

4.6.3R

• Fixed Beta SyncList NullReferenceException error (#850).
• Improved List and Dictionary collection readers now take collections from caches first.
• Fixed NetworkTransform setting Rigidbody/2D interpolation to none on owners.
• Fixed server configuring NetworkTransform before there was an owner.
• Added PreciseTick(uint) constructor to generate a PreciseTick with 0 subtick value.
• Fixed ReadPayload data corruption (#855).
• Improved DebugManager inspector.
• Fixed Channel always showing Unreliable during Replicate replays.
• Fixed UniversalTickSmoother conditionally providing excessively large adaptive interpolation values.
• Added Reader.ReadStringAllocated.
• Obsoleted Reader.ReadString.
• Added DebugManager Validate Rpc Lengths to verify RPCs potentially corrupting data.
• Added SceneProcessorBase.GetLastLoadedScene.
• Fixed OnStopNetwork incorrectly invoking on clientHost when object despawned for client but not yet on server.
• Added New NetworkBehaviour template menu under Fish-Networking > Configuratoin, thanks Rain1950! (#851).

4.6.2R

• Improved ReplicateState changes are now beta and can be toggled via Fish-Networking menu.
• Improved RigidbodyPauser, you can now specify which Rigidbodies to use manually.
• Fixed harmless error in NetworkTickSmoother, null reference exception, when exiting play mode in Unity.
• Fixed ReplicateState.FastContains returning incorrectly.

4.6.1R

• Fixed Network/OfflineTickSmoother detach/reattach settings not working.
• Improved normalized ReadMe file layouts and names.
• Fixed Review Reminder window no longer shows for Virtual Players on Unity 6.

4.6.0

• Added preciseTick.AsDouble extension.
• Added double.AsPreciseTick extension.
• Added NetworkObject.IsDestroying to know when a NetworkObject is being destroyed or pooled during OnStop callbacks.
• Added TimeManager.TimeToTicks(long).
• Added NetworkObject.IsInitializedNested.
• Added ServerSpawner component which automatically spawns NetworkObjects when the server starts.
• Added OfflineTickSmoother.
• Added NetworkTickSmoother.
• Improved ReplicateState terminology: Future is now only ever true when reconciling, and when data tick has not been run as Current.
• Changed ReplicateState is now a flag.
• Changed ReplicateState previous values now use flag checks internally.
• Added replicateState.FastContains for flag checking.
• Added ReplicateState.IsCurrent, which is the opposite of IsFuture.
• Obsoleted several ReplicateState values in favor of new terminology.
• Improved CharacterControllerPrediction demo notes.
• Improved CharacterControllerPrediction now uses NetworkTrigger to attach and detach from platforms.
• Improved Stable and Beta mode are now available per feature.
• Improved several API and ToString methods to be more verbose.
• Improved PlayerSpawner to find NetworkManager within hierarchy, using InstanceFinder only as a fallback.
• Changed PredictionManager.StateInterpolation is now public.
• Changed Reader.Initialize methods are now public.
• Fixed set RollbackPhysicsType enum as flag.
• Fixed OnStop callbacks not firing on Instantiated objects nested to scene objects when server suddenly disconnects.
  Removed debug.
• Fixed DefaultScene incorrectly loading Offline scene when a server stops, even if another server is running such as through Multipass.
• Fixed TimeManager.Tick drifting with latency.
• Fixed UseGlobalCustomSerializer attribute not working on types within read-only assemblies.
• Fixed Object Initialized Twice Error when stopping and starting all sockets without stopping the editor or application.
• Fixed conditional Writer corruption when manually calling RebuildObservers.
• Fixed NetworkObject.SetInitializedValues not running on prefab scene objects with properties that differed from the prefabs.
• Fixed nested NetworkObjects being destroyed on socket stop when using object pooling (#842).
• Fixed collection modified error when using extension transform.DestroyChildren with destroyImmediate as true.
• Fixed BandwidthDisplay showing flipped in/out values for client usage (#843).
• Fixed NetworkCollider/Trigger sometimes incorrectly firing OnEnter/Exit events during reconcilations.
• Obsoleted NetworkBehaviour/Object.HasAuthority; replaced with IsController.
• Obsoleted DetachableNetworkTickSmoother; replaced with NetworkTickSmoother.
• Obsoleted MonoTickSmoother; replaced with OfflineTickSmoother.
• Obsoleted NetworkObject smoother settings in favor of using NetworkTickSmoother.
• Removed HistoryDuration on NetworkCollider/Trigger as it is no longer needed.
• Removed unused ReplicateState values.

4.5.8R

• Fixed memory leak in ObserverConditions when using pooling.
• Fixed memory leak in ObserverConditions when destroying objects as clientHost before client-side deinitialized the object.
• Improved notes on a ReplicateState enum value.
• Improved error logging for SyncTypes.

4.5.7R

• Fixed TimeManager.TimePassed negative time comparison (#829).
• Added Transport.GetPacketLoss. Only some transports support this feature.
• Added Tugboat.GetPacketLoss(bool).
• Added Server/ClientAttribute.UseIsStarted to force using IsServer/ClientStarted instead of Initialized.
• Fixed conditional NullReferenceException on clientHost when NetworkObserver deinitialized OnDestroy (#812).
• Renamed SceneManager.MoveClientHostObjects to MoveClientObjects.
• Changed SceneManager.MoveClientObjects now also applies to ClientOnly.
• Fixed NullReferenceExceptions on clientHost when rapidly spawning while changing scenes.
• Improved removed unnecessary logging for clientHost.
• Fixed NetworkObject NullReferenceException during OnDestroy when nested.
• Improved sending reconciles on Channel.Reliable now forces them through regardless if replicates run recently.
• Fixed Unity bug IL2CPP build crash for RPCs in generic classes. This is a limited work-around; for proper resolution use Unity 2022 or higher.
• Fixed OnServerDespawn not invoking via observer builds (thanks gooby!).
• Fixed math on Quaterion.Subtract extension.
• Fixed RigidbodyPauser unpausing to kinematic states when another Pauser made kinematic. This bug mostly affected OfflineRigidbody.
• Fixed invalid read size error when reader deserializers a null list (#837).
• Fixed ChildTransformTickSmoother graphics not moving with target when starting as clientHost then disconnecting client.
• Fixed ChildTransformTickSmoother moving to incorrect values when graphicalObject had an offset and when using adaptive interpolation.
• Fixed replicates not running default data when data was queued but interpolation was not met yet.
• Fixed preferred scenes not being set as active scene when SceneManager.SetActiveScene is false (#838).
• Fixed NetworkManager reference being null on reconcile and replicate readers, resulting in possible errors when reading types dependent on a NetworkManager.
• Fixed harmless NullReferenceException caused by ChildTransformTickSmoother when exiting play/application (#818).
• Fixed harmless Multipass Id not found error in Multipass when subsequentially starting server, client, then stopping server (#828).
• Improved performance slightly while in development mode when clients disconnect.
• Updated Edgegap to 3.0.9.
• Added CharacterController prediction demo, featuring: sprint, jumping, stamina, moving platforms, parenting.
• Added Rigidbody prediction demo, featuring: NetworkTrigger pickup, speed boost, predicting multiple rigidbodies.

4.5.6R

• Obsoleted PooledWriter.ResetState in favor of Store/Length.
• Obsoleted PooledReader.ResetState in favor of Store.
• Obsoleted Writer.Reset in favor of Clear.
• Added Writer.Clear.
• Fixed rare chance of writer corruption due to a writer being stored rather than cleared.
• Obsoleted TransformProperties.LocalScale in favor of Scale.
• Added Writer.WriteTransformProperties.
• Added Reader.ReadTransformProperties.
• Removed types no longer used by Mirror in MirrorUpgrade.
• Added BandwidthDisplay.SecondsAveraged to provide better averages over time.
• Added NetworkObject.IsTakingOwnership QOL.
• Added Quaterions.Subtract/Add extensions.
• Changed Beta prediction code moved into stable.
• Added Resettable/RingBuffer.Enqueue.
• Added Resettable/RingBuffer.Dequeue.
• Added Resettable/RingBuffer.TryDequeue.
• Improved ResettableRingBuffer.Add now returns replaced entries.
• Improved ResettableRingBuffer.Add/RemoveRange now have ability to specify resetting replaced or cleared.
• Changed failed predicted spawns are now destroyed on the server rather than optionally pooled. This will be restored at a later date.
• Fixed predicted spawns becoming corrupt on spawner (#815, #801).
• Improved performance slightly on TickNetworkBehaviour when manually changing subscriptions.

4.5.5R

• Fixed DistanceCondition.MaximumDistance not applying properly when set at runtime (#809).
• Obsoleted DistanceCondition.MaximumDistance.
• Added DistanceCondition.Get/SetMaximumDistance.
• Fixed predicted spawners not becoming an observer of the object they spawned.
• Fixed internals trying to call prediction methods on NetworkBehaviours when they do not utilize prediction when at least one NetworkBehaviour for the NetworkObject does.
• Fixed SyncTimers finishing immediately on clientsOnly when using timer.Update without arguments. (#807).
• Added TickNetworkBehaviour.SetTickCallbacks to set callbacks at runtime.