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Author SHA1 Message Date
Unity Technologies
c813386c5c com.unity.netcode.gameobjects@2.0.0-pre.2 
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [2.0.0-pre.2] - 2024-06-17

### Added

- Added `AnticipatedNetworkVariable<T>`, which adds support for client anticipation of `NetworkVariable` values, allowing for more responsive gameplay. (#2957)
- Added `AnticipatedNetworkTransform`, which adds support for client anticipation of NetworkTransforms. (#2957)
- Added `NetworkVariableBase.ExceedsDirtinessThreshold` to allow network variables to throttle updates by only sending updates when the difference between the current and previous values exceeds a threshold. (This is exposed in `NetworkVariable<T>` with the callback `NetworkVariable<T>.CheckExceedsDirtinessThreshold`). (#2957)
- Added `NetworkVariableUpdateTraits`, which add additional throttling support: `MinSecondsBetweenUpdates` will prevent the `NetworkVariable` from sending updates more often than the specified time period (even if it exceeds the dirtiness threshold), while `MaxSecondsBetweenUpdates` will force a dirty `NetworkVariable` to send an update after the specified time period even if it has not yet exceeded the dirtiness threshold. (#2957)
- Added virtual method `NetworkVariableBase.OnInitialize` which can be used by `NetworkVariable` subclasses to add initialization code. (#2957)
- Added `NetworkTime.TickWithPartial`, which represents the current tick as a double that includes the fractional/partial tick value. (#2957)
- Added `NetworkTickSystem.AnticipationTick`, which can be helpful with implementation of client anticipation. This value represents the tick the current local client was at at the beginning of the most recent network round trip, which enables it to correlate server update ticks with the client tick that may have triggered them. (#2957)
- Added event `NetworkManager.OnSessionOwnerPromoted` that is invoked when a new session owner promotion occurs. (#2948)
- Added `NetworkRigidBodyBase.GetLinearVelocity` and `NetworkRigidBodyBase.SetLinearVelocity` convenience/helper methods. (#2948)
- Added `NetworkRigidBodyBase.GetAngularVelocity` and `NetworkRigidBodyBase.SetAngularVelocity` convenience/helper methods. (#2948)

### Fixed

- Fixed issue when `NetworkTransform` half float precision is enabled and ownership changes the current base position was not being synchronized. (#2948)
- Fixed issue where `OnClientConnected` not being invoked on the session owner when connecting to a new distributed authority session. (#2948)
- Fixed issue where Rigidbody micro-motion (i.e. relatively small velocities) would result in non-authority instances slightly stuttering as the body would come to a rest (i.e. no motion). Now, the threshold value can increase at higher velocities and can decrease slightly below the provided threshold to account for this. (#2948)

### Changed

- Changed `NetworkAnimator` no longer requires the `Animator` component to exist on the same `GameObject`. (#2957)
- Changed `NetworkObjectReference` and `NetworkBehaviourReference` to allow null references when constructing and serializing. (#2957)
- Changed the client's owned objects is now returned (`NetworkClient` and `NetworkSpawnManager`) as an array as opposed to a list for performance purposes. (#2948)
- Changed `NetworkTransfrom.TryCommitTransformToServer` to be internal as it will be removed by the final 2.0.0 release. (#2948)
- Changed `NetworkTransformEditor.OnEnable` to a virtual method to be able to customize a `NetworkTransform` derived class by creating a derived editor control from `NetworkTransformEditor`. (#2948)
 2024-06-17 00:00:00 +00:00
Unity Technologies
143a6cbd34 com.unity.netcode.gameobjects@2.0.0-exp.2 
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [2.0.0-exp.2] - 2024-04-02

### Added
- Added updates to all internal messages to account for a distributed authority network session connection.  (#2863)
- Added `NetworkRigidbodyBase` that provides users with a more customizable network rigidbody, handles both `Rigidbody` and `Rigidbody2D`, and provides an option to make `NetworkTransform` use the rigid body for motion.  (#2863)
  - For a customized `NetworkRigidbodyBase` class:
    - `NetworkRigidbodyBase.AutoUpdateKinematicState` provides control on whether the kinematic setting will be automatically set or not when ownership changes.
    - `NetworkRigidbodyBase.AutoSetKinematicOnDespawn` provides control on whether isKinematic will automatically be set to true when the associated `NetworkObject` is despawned.
    - `NetworkRigidbodyBase.Initialize` is a protected method that, when invoked, will initialize the instance. This includes options to:
      - Set whether using a `RigidbodyTypes.Rigidbody` or `RigidbodyTypes.Rigidbody2D`.
      - Includes additional optional parameters to set the `NetworkTransform`, `Rigidbody`, and `Rigidbody2d` to use.
  - Provides additional public methods:
    - `NetworkRigidbodyBase.GetPosition` to return the position of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.GetRotation` to return the rotation of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.MovePosition` to move to the position of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.MoveRotation` to move to the rotation of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.Move` to move to the position and rotation of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.Move` to move to the position and rotation of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.SetPosition` to set the position of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.SetRotation` to set the rotation of the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting).
    - `NetworkRigidbodyBase.ApplyCurrentTransform` to set the position and rotation of the `Rigidbody` or `Rigidbody2d` based on the associated `GameObject` transform (depending upon its initialized setting).
    - `NetworkRigidbodyBase.WakeIfSleeping` to wake up the rigid body if sleeping.
    - `NetworkRigidbodyBase.SleepRigidbody` to put the rigid body to sleep.
    - `NetworkRigidbodyBase.IsKinematic` to determine if the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting) is currently kinematic.
    - `NetworkRigidbodyBase.SetIsKinematic` to set the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting) current kinematic state.
    - `NetworkRigidbodyBase.ResetInterpolation` to reset the `Rigidbody` or `Rigidbody2d` (depending upon its initialized setting) back to its original interpolation value when initialized.
  - Now includes a `MonoBehaviour.FixedUpdate` implementation that will update the assigned `NetworkTransform` when `NetworkRigidbodyBase.UseRigidBodyForMotion` is true. (#2863)
- Added `RigidbodyContactEventManager` that provides a more optimized way to process collision enter and collision stay events as opposed to the `Monobehaviour` approach. (#2863)
  - Can be used in client-server and distributed authority modes, but is particularly useful in distributed authority.
- Added rigid body motion updates to `NetworkTransform` which allows users to set interolation on rigid bodies. (#2863)
  - Extrapolation is only allowed on authoritative instances, but custom class derived from `NetworkRigidbodyBase` or `NetworkRigidbody` or `NetworkRigidbody2D` automatically switches non-authoritative instances to interpolation if set to extrapolation.
- Added distributed authority mode support to `NetworkAnimator`. (#2863)
- Added session mode selection to `NetworkManager` inspector view. (#2863)
- Added distributed authority permissions feature. (#2863)
- Added distributed authority mode specific `NetworkObject` permissions flags (Distributable, Transferable, and RequestRequired). (#2863)
- Added distributed authority mode specific `NetworkObject.SetOwnershipStatus` method that applies one or more `NetworkObject` instance's ownership flags. If updated when spawned, the ownership permission changes are synchronized with the other connected clients. (#2863)
- Added distributed authority mode specific `NetworkObject.RemoveOwnershipStatus` method that removes one or more `NetworkObject` instance's ownership flags. If updated when spawned, the ownership permission changes are synchronized with the other connected clients. (#2863)
- Added distributed authority mode specific `NetworkObject.HasOwnershipStatus` method that will return (true or false) whether one or more ownership flags is set. (#2863)
- Added distributed authority mode specific `NetworkObject.SetOwnershipLock` method that locks ownership of a `NetworkObject` to prevent ownership from changing until the current owner releases the lock. (#2863)
- Added distributed authority mode specific `NetworkObject.RequestOwnership` method that sends an ownership request to the current owner of a spawned `NetworkObject` instance. (#2863)
- Added distributed authority mode specific `NetworkObject.OnOwnershipRequested` callback handler that is invoked on the owner/authoritative side when a non-owner requests ownership. Depending upon the boolean returned value depends upon whether the request is approved or denied. (#2863)
- Added distributed authority mode specific `NetworkObject.OnOwnershipRequestResponse` callback handler that is invoked when a non-owner's request has been processed. This callback includes a `NetworkObjet.OwnershipRequestResponseStatus` response parameter that describes whether the request was approved or the reason why it was not approved. (#2863)
- Added distributed authority mode specific `NetworkObject.DeferDespawn` method that defers the despawning of `NetworkObject` instances on non-authoritative clients based on the tick offset parameter. (#2863)
- Added distributed authority mode specific `NetworkObject.OnDeferredDespawnComplete` callback handler that can be used to further control when deferring the despawning of a `NetworkObject` on non-authoritative instances. (#2863)
- Added `NetworkClient.SessionModeType` as one way to determine the current session mode of the network session a client is connected to. (#2863)
- Added distributed authority mode specific `NetworkClient.IsSessionOwner` property to determine if the current local client is the current session owner of a distributed authority session. (#2863)
- Added distributed authority mode specific client side spawning capabilities. When running in distributed authority mode, clients can instantiate and spawn `NetworkObject` instances (the local client is authomatically the owner of the spawned object). (#2863)
  - This is useful to better visually synchronize owner authoritative motion models and newly spawned `NetworkObject` instances (i.e. projectiles for example).
- Added distributed authority mode specific client side player spawning capabilities. Clients will automatically spawn their associated player object locally. (#2863)
- Added distributed authority mode specific `NetworkConfig.AutoSpawnPlayerPrefabClientSide` property (default is true) to provide control over the automatic spawning of player prefabs on the local client side. (#2863)
- Added distributed authority mode specific `NetworkManager.OnFetchLocalPlayerPrefabToSpawn` callback that, when assigned, will allow the local client to provide the player prefab to be spawned for the local client. (#2863)
  - This is only invoked if the `NetworkConfig.AutoSpawnPlayerPrefabClientSide` property is set to true.
- Added distributed authority mode specific `NetworkBehaviour.HasAuthority` property that determines if the local client has authority over the associated `NetworkObject` instance (typical use case is within a `NetworkBehaviour` script much like that of `IsServer` or `IsClient`). (#2863)
- Added distributed authority mode specific `NetworkBehaviour.IsSessionOwner` property that determines if the local client is the session owner (typical use case would be to determine if the local client can has scene management authority within a `NetworkBehaviour` script). (#2863)
- Added support for distributed authority mode scene management where the currently assigned session owner can start scene events (i.e. scene loading and scene unloading). (#2863)

### Fixed

- Fixed issue where the host was not invoking `OnClientDisconnectCallback` for its own local client when internally shutting down. (#2822)
- Fixed issue where NetworkTransform could potentially attempt to "unregister" a named message prior to it being registered. (#2807)
- Fixed issue where in-scene placed `NetworkObject`s with complex nested children `NetworkObject`s (more than one child in depth) would not synchronize properly if WorldPositionStays was set to true. (#2796)

### Changed
- Changed client side awareness of other clients is now the same as a server or host. (#2863)
- Changed `NetworkManager.ConnectedClients` can now be accessed by both server and clients. (#2863)
- Changed `NetworkManager.ConnectedClientsList` can now be accessed by both server and clients. (#2863)
- Changed `NetworkTransform` defaults to owner authoritative when connected to a distributed authority session. (#2863)
- Changed `NetworkVariable` defaults to owner write and everyone read permissions when connected to a distributed authority session (even if declared with server read or write permissions).  (#2863)
- Changed `NetworkObject` no longer implements the `MonoBehaviour.Update` method in order to determine whether a `NetworkObject` instance has been migrated to a different scene. Instead, only `NetworkObjects` with the `SceneMigrationSynchronization` property set will be updated internally during the `NetworkUpdateStage.PostLateUpdate` by `NetworkManager`. (#2863)
- Changed `NetworkManager` inspector view layout where properties are now organized by category. (#2863)
- Changed `NetworkTransform` to now use `NetworkTransformMessage` as opposed to named messages for NetworkTransformState updates. (#2810)
- Changed `CustomMessageManager` so it no longer attempts to register or "unregister" a null or empty string and will log an error if this condition occurs. (#2807)
 2024-04-02 00:00:00 +00:00
Unity Technologies
1e7078c160 com.unity.netcode.gameobjects@1.1.0 
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [1.1.0] - 2022-10-21

### Added

- Added `NetworkManager.IsApproved` flag that is set to `true` a client has been approved.(#2261)
- `UnityTransport` now provides a way to set the Relay server data directly from the `RelayServerData` structure (provided by the Unity Transport package) throuh its `SetRelayServerData` method. This allows making use of the new APIs in UTP 1.3 that simplify integration of the Relay SDK. (#2235)
- IPv6 is now supported for direct connections when using `UnityTransport`. (#2232)
- Added WebSocket support when using UTP 2.0 with `UseWebSockets` property in the `UnityTransport` component of the `NetworkManager` allowing to pick WebSockets for communication. When building for WebGL, this selection happens automatically. (#2201)
- Added position, rotation, and scale to the `ParentSyncMessage` which provides users the ability to specify the final values on the server-side when `OnNetworkObjectParentChanged` is invoked just before the message is created (when the `Transform` values are applied to the message). (#2146)
- Added `NetworkObject.TryRemoveParent` method for convenience purposes opposed to having to cast null to either `GameObject` or `NetworkObject`. (#2146)

### Changed

- Updated `UnityTransport` dependency on `com.unity.transport` to 1.3.0. (#2231)
- The send queues of `UnityTransport` are now dynamically-sized. This means that there shouldn't be any need anymore to tweak the 'Max Send Queue Size' value. In fact, this field is now removed from the inspector and will not be serialized anymore. It is still possible to set it manually using the `MaxSendQueueSize` property, but it is not recommended to do so aside from some specific needs (e.g. limiting the amount of memory used by the send queues in very constrained environments). (#2212)
- As a consequence of the above change, the `UnityTransport.InitialMaxSendQueueSize` field is now deprecated. There is no default value anymore since send queues are dynamically-sized. (#2212)
- The debug simulator in `UnityTransport` is now non-deterministic. Its random number generator used to be seeded with a constant value, leading to the same pattern of packet drops, delays, and jitter in every run. (#2196)
- `NetworkVariable<>` now supports managed `INetworkSerializable` types, as well as other managed types with serialization/deserialization delegates registered to `UserNetworkVariableSerialization<T>.WriteValue` and `UserNetworkVariableSerialization<T>.ReadValue` (#2219)
- `NetworkVariable<>` and `BufferSerializer<BufferSerializerReader>` now deserialize `INetworkSerializable` types in-place, rather than constructing new ones. (#2219)

### Fixed

- Fixed `NetworkManager.ApprovalTimeout` will not timeout due to slower client synchronization times as it now uses the added `NetworkManager.IsApproved` flag to determined if the client has been approved or not.(#2261)
- Fixed issue caused when changing ownership of objects hidden to some clients (#2242)
- Fixed issue where an in-scene placed NetworkObject would not invoke NetworkBehaviour.OnNetworkSpawn if the GameObject was disabled when it was despawned. (#2239)
- Fixed issue where clients were not rebuilding the `NetworkConfig` hash value for each unique connection request. (#2226)
- Fixed the issue where player objects were not taking the `DontDestroyWithOwner` property into consideration when a client disconnected. (#2225)
- Fixed issue where `SceneEventProgress` would not complete if a client late joins while it is still in progress. (#2222)
- Fixed issue where `SceneEventProgress` would not complete if a client disconnects. (#2222)
- Fixed issues with detecting if a `SceneEventProgress` has timed out. (#2222)
- Fixed issue #1924 where `UnityTransport` would fail to restart after a first failure (even if what caused the initial failure was addressed). (#2220)
- Fixed issue where `NetworkTransform.SetStateServerRpc` and `NetworkTransform.SetStateClientRpc` were not honoring local vs world space settings when applying the position and rotation. (#2203)
- Fixed ILPP `TypeLoadException` on WebGL on MacOS Editor and potentially other platforms. (#2199)
- Implicit conversion of NetworkObjectReference to GameObject will now return null instead of throwing an exception if the referenced object could not be found (i.e., was already despawned) (#2158)
- Fixed warning resulting from a stray NetworkAnimator.meta file (#2153)
- Fixed Connection Approval Timeout not working client side. (#2164)
- Fixed issue where the `WorldPositionStays` parenting parameter was not being synchronized with clients. (#2146)
- Fixed issue where parented in-scene placed `NetworkObject`s would fail for late joining clients. (#2146)
- Fixed issue where scale was not being synchronized which caused issues with nested parenting and scale when `WorldPositionStays` was true. (#2146)
- Fixed issue with `NetworkTransform.ApplyTransformToNetworkStateWithInfo` where it was not honoring axis sync settings when `NetworkTransformState.IsTeleportingNextFrame` was true. (#2146)
- Fixed issue with `NetworkTransform.TryCommitTransformToServer` where it was not honoring the `InLocalSpace` setting. (#2146)
- Fixed ClientRpcs always reporting in the profiler view as going to all clients, even when limited to a subset of clients by `ClientRpcParams`. (#2144)
- Fixed RPC codegen failing to choose the correct extension methods for `FastBufferReader` and `FastBufferWriter` when the parameters were a generic type (i.e., List<int>) and extensions for multiple instantiations of that type have been defined (i.e., List<int> and List<string>) (#2142)
- Fixed the issue where running a server (i.e. not host) the second player would not receive updates (unless a third player joined). (#2127)
- Fixed issue where late-joining client transition synchronization could fail when more than one transition was occurring.(#2127)
- Fixed throwing an exception in `OnNetworkUpdate` causing other `OnNetworkUpdate` calls to not be executed. (#1739)
- Fixed synchronization when Time.timeScale is set to 0. This changes timing update to use unscaled deltatime. Now network updates rate are independent from the local time scale. (#2171)
- Fixed not sending all NetworkVariables to all clients when a client connects to a server. (#1987)
- Fixed IsOwner/IsOwnedByServer being wrong on the server after calling RemoveOwnership (#2211)
 2022-10-21 00:00:00 +00:00
Unity Technologies
18ffd5fdc8 com.unity.netcode.gameobjects@1.0.0 
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [1.0.0] - 2022-06-27

### Changed

- Changed version to 1.0.0. (#2046)
 2022-06-27 00:00:00 +00:00
Unity Technologies
add668dfd2 com.unity.netcode.gameobjects@1.0.0-pre.8 
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [1.0.0-pre.8] - 2022-04-27

### Changed

- `unmanaged` structs are no longer universally accepted as RPC parameters because some structs (i.e., structs with pointers in them, such as `NativeList<T>`) can't be supported by the default memcpy struct serializer. Structs that are intended to be serialized across the network must add `INetworkSerializeByMemcpy` to the interface list (i.e., `struct Foo : INetworkSerializeByMemcpy`). This interface is empty and just serves to mark the struct as compatible with memcpy serialization. For external structs you can't edit, you can pass them to RPCs by wrapping them in `ForceNetworkSerializeByMemcpy<T>`. (#1901)

### Removed
- Removed `SIPTransport` (#1870)

- Removed `ClientNetworkTransform` from the package samples and moved to Boss Room's Utilities package which can be found [here](https://github.com/Unity-Technologies/com.unity.multiplayer.samples.coop/blob/main/Packages/com.unity.multiplayer.samples.coop/Utilities/Net/ClientAuthority/ClientNetworkTransform.cs).

### Fixed

- Fixed `NetworkTransform` generating false positive rotation delta checks when rolling over between 0 and 360 degrees. (#1890)
- Fixed client throwing an exception if it has messages in the outbound queue when processing the `NetworkEvent.Disconnect` event and is using UTP. (#1884)
- Fixed issue during client synchronization if 'ValidateSceneBeforeLoading' returned false it would halt the client synchronization process resulting in a client that was approved but not synchronized or fully connected with the server. (#1883)
- Fixed an issue where UNetTransport.StartServer would return success even if the underlying transport failed to start (#854)
- Passing generic types to RPCs no longer causes a native crash (#1901)
- Fixed an issue where calling `Shutdown` on a `NetworkManager` that was already shut down would cause an immediate shutdown the next time it was started (basically the fix makes `Shutdown` idempotent). (#1877)
 2022-04-27 00:00:00 +00:00
Unity Technologies
4818405514 com.unity.netcode.gameobjects@1.0.0-pre.5 
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [1.0.0-pre.5] - 2022-01-26

### Added

- Added `PreviousValue` in `NetworkListEvent`, when `Value` has changed (#1528)

### Changed

- NetworkManager's GameObject is no longer allowed to be nested under one or more GameObject(s).(#1484)
- NetworkManager DontDestroy property was removed and now NetworkManager always is migrated into the DontDestroyOnLoad scene. (#1484)

### Fixed

- Fixed network tick value sometimes being duplicated or skipped. (#1614)
- Fixed The ClientNetworkTransform sample script to allow for owner changes at runtime. (#1606)
 2022-01-26 00:00:00 +00:00
Unity Technologies
22d877d1b2 com.unity.netcode.gameobjects@1.0.0-pre.2 
# Changelog

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

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [1.0.0-pre.2] - 2020-12-20

### Added

- Associated Known Issues for the 1.0.0-pre.1 release in the changelog

### Changed

- Updated label for `1.0.0-pre.1` changelog section

## [1.0.0-pre.1] - 2020-12-20

### Added

- Added `ClientNetworkTransform` sample to the SDK package (#1168)
- Added `Bootstrap` sample to the SDK package (#1140)
- Enhanced `NetworkSceneManager` implementation with additive scene loading capabilities (#1080, #955, #913)
  - `NetworkSceneManager.OnSceneEvent` provides improved scene event notificaitons
- Enhanced `NetworkTransform` implementation with per axis/component based and threshold based state replication (#1042, #1055, #1061, #1084, #1101)
- Added a jitter-resistent `BufferedLinearInterpolator<T>` for `NetworkTransform` (#1060)
- Implemented `NetworkPrefabHandler` that provides support for object pooling and `NetworkPrefab` overrides (#1073, #1004, #977, #905,#749, #727)
- Implemented auto `NetworkObject` transform parent synchronization at runtime over the network (#855)
- Adopted Unity C# Coding Standards in the codebase with `.editorconfig` ruleset (#666, #670)
- When a client tries to spawn a `NetworkObject` an exception is thrown to indicate unsupported behavior. (#981)
- Added a `NetworkTime` and `NetworkTickSystem` which allows for improved control over time and ticks. (#845)
- Added a `OnNetworkDespawn` function to `NetworkObject` which gets called when a `NetworkObject` gets despawned and can be overriden. (#865)
- Added `SnapshotSystem` that would allow variables and spawn/despawn messages to be sent in blocks (#805, #852, #862, #963, #1012, #1013, #1021, #1040, #1062, #1064, #1083, #1091, #1111, #1129, #1166, #1192)
  - Disabled by default for now, except spawn/despawn messages
  - Will leverage unreliable messages with eventual consistency
- `NetworkBehaviour` and `NetworkObject`'s `NetworkManager` instances can now be overriden (#762)
- Added metrics reporting for the new network profiler if the Multiplayer Tools package is present (#1104, #1089, #1096, #1086, #1072, #1058, #960, #897, #891, #878)
- `NetworkBehaviour.IsSpawned` a quick (and stable) way to determine if the associated NetworkObject is spawned (#1190)
- Added `NetworkRigidbody` and `NetworkRigidbody2D` components to support networking `Rigidbody` and `Rigidbody2D` components (#1202, #1175)
- Added `NetworkObjectReference` and `NetworkBehaviourReference` structs which allow to sending `NetworkObject/Behaviours` over RPCs/`NetworkVariable`s (#1173)
- Added `NetworkAnimator` component to support networking `Animator` component (#1281, #872)

### Changed

- Bumped minimum Unity version, renamed package as "Unity Netcode for GameObjects", replaced `MLAPI` namespace and its variants with `Unity.Netcode` namespace and per asm-def variants (#1007, #1009, #1015, #1017, #1019, #1025, #1026, #1065)
  - Minimum Unity version:
    - 2019.4 → 2020.3+
  - Package rename:
    - Display name: `MLAPI Networking Library` → `Netcode for GameObjects`
    - Name: `com.unity.multiplayer.mlapi` → `com.unity.netcode.gameobjects`
    - Updated package description
  - All `MLAPI.x` namespaces are replaced with `Unity.Netcode`
    - `MLAPI.Messaging` → `Unity.Netcode`
    - `MLAPI.Connection` → `Unity.Netcode`
    - `MLAPI.Logging` → `Unity.Netcode`
    - `MLAPI.SceneManagement` → `Unity.Netcode`
    - and other `MLAPI.x` variants to `Unity.Netcode`
  - All assembly definitions are renamed with `Unity.Netcode.x` variants
    - `Unity.Multiplayer.MLAPI.Runtime` → `Unity.Netcode.Runtime`
    - `Unity.Multiplayer.MLAPI.Editor` → `Unity.Netcode.Editor`
    - and other `Unity.Multiplayer.MLAPI.x` variants to `Unity.Netcode.x` variants
- Renamed `Prototyping` namespace and assembly definition to `Components` (#1145)
- Changed `NetworkObject.Despawn(bool destroy)` API to default to `destroy = true` for better usability (#1217)
- Scene registration in `NetworkManager` is now replaced by Build Setttings → Scenes in Build List (#1080)
- `NetworkSceneManager.SwitchScene` has been replaced by `NetworkSceneManager.LoadScene` (#955)
- `NetworkManager, NetworkConfig, and NetworkSceneManager` scene registration replaced with scenes in build list (#1080)
- `GlobalObjectIdHash` replaced `PrefabHash` and `PrefabHashGenerator` for stability and consistency (#698)
- `NetworkStart` has been renamed to `OnNetworkSpawn`. (#865)
- Network variable cleanup - eliminated shared mode, variables are server-authoritative (#1059, #1074)
- `NetworkManager` and other systems are no longer singletons/statics (#696, #705, #706, #737, #738, #739, #746, #747, #763, #765, #766, #783, #784, #785, #786, #787, #788)
- Changed `INetworkSerializable.NetworkSerialize` method signature to use `BufferSerializer<T>` instead of `NetworkSerializer` (#1187)
- Changed `CustomMessagingManager`'s methods to use `FastBufferWriter` and `FastBufferReader` instead of `Stream` (#1187)
- Reduced internal runtime allocations by removing LINQ calls and replacing managed lists/arrays with native collections (#1196)

### Removed

- Removed `NetworkNavMeshAgent` (#1150)
- Removed `NetworkDictionary`, `NetworkSet` (#1149)
- Removed `NetworkVariableSettings` (#1097)
- Removed predefined `NetworkVariable<T>` types (#1093)
    - Removed `NetworkVariableBool`, `NetworkVariableByte`, `NetworkVariableSByte`, `NetworkVariableUShort`, `NetworkVariableShort`, `NetworkVariableUInt`, `NetworkVariableInt`, `NetworkVariableULong`, `NetworkVariableLong`, `NetworkVariableFloat`, `NetworkVariableDouble`, `NetworkVariableVector2`, `NetworkVariableVector3`, `NetworkVariableVector4`, `NetworkVariableColor`, `NetworkVariableColor32`, `NetworkVariableRay`, `NetworkVariableQuaternion`
- Removed `NetworkChannel` and `MultiplexTransportAdapter` (#1133)
- Removed ILPP backend for 2019.4, minimum required version is 2020.3+ (#895)
- `NetworkManager.NetworkConfig` had the following properties removed: (#1080)
  - Scene Registrations no longer exists
  - Allow Runtime Scene Changes was no longer needed and was removed
- Removed the NetworkObject.Spawn payload parameter (#1005)
- Removed `ProfilerCounter`, the original MLAPI network profiler, and the built-in network profiler module (2020.3). A replacement can now be found in the Multiplayer Tools package. (#1048)
- Removed UNet RelayTransport and related relay functionality in UNetTransport (#1081)
- Removed `UpdateStage` parameter from `ServerRpcSendParams` and `ClientRpcSendParams` (#1187)
- Removed `NetworkBuffer`, `NetworkWriter`, `NetworkReader`, `NetworkSerializer`, `PooledNetworkBuffer`, `PooledNetworkWriter`, and `PooledNetworkReader` (#1187)
- Removed `EnableNetworkVariable` in `NetworkConfig`, it is always enabled now (#1179)
- Removed `NetworkTransform`'s FixedSendsPerSecond, AssumeSyncedSends, InterpolateServer, ExtrapolatePosition, MaxSendsToExtrapolate, Channel, EnableNonProvokedResendChecks, DistanceSendrate (#1060) (#826) (#1042, #1055, #1061, #1084, #1101)
- Removed `NetworkManager`'s `StopServer()`, `StopClient()` and `StopHost()` methods and replaced with single `NetworkManager.Shutdown()` method for all (#1108)

### Fixed

- Fixed ServerRpc ownership check to `Debug.LogError` instead of `Debug.LogWarning` (#1126)
- Fixed `NetworkObject.OwnerClientId` property changing before `NetworkBehaviour.OnGainedOwnership()` callback (#1092)
- Fixed `NetworkBehaviourILPP` to iterate over all types in an assembly (#803)
- Fixed cross-asmdef RPC ILPP by importing types into external assemblies (#678)
- Fixed `NetworkManager` shutdown when quitting the application or switching scenes (#1011)
  - Now `NetworkManager` shutdowns correctly and despawns existing `NetworkObject`s
- Fixed Only one `PlayerPrefab` can be selected on `NetworkManager` inspector UI in the editor (#676)
- Fixed connection approval not being triggered for host (#675)
- Fixed various situations where messages could be processed in an invalid order, resulting in errors (#948, #1187, #1218)
- Fixed `NetworkVariable`s being default-initialized on the client instead of being initialized with the desired value (#1266)
- Improved runtime performance and reduced GC pressure (#1187)
- Fixed #915 - clients are receiving data from objects not visible to them (#1099)
- Fixed `NetworkTransform`'s "late join" issues, `NetworkTransform` now uses `NetworkVariable`s instead of RPCs (#826)
- Throw an exception for silent failure when a client tries to get another player's `PlayerObject`, it is now only allowed on the server-side (#844)

### Known Issues

- `NetworkVariable` does not serialize `INetworkSerializable` types through their `NetworkSerialize` implementation
- `NetworkObjects` marked as `DontDestroyOnLoad` are disabled during some network scene transitions
- `NetworkTransform` interpolates from the origin when switching Local Space synchronization
- Exceptions thrown in `OnNetworkSpawn` user code for an object will prevent the callback in other objects
- Cannot send an array of `INetworkSerializable` in RPCs
- ILPP generation fails with special characters in project path

## [0.2.0] - 2021-06-03

WIP version increment to pass package validation checks. Changelog & final version number TBD.

## [0.1.1] - 2021-06-01

This is hotfix v0.1.1 for the initial experimental Unity MLAPI Package.

### Changed

- Fixed issue with the Unity Registry package version missing some fixes from the v0.1.0 release.

## [0.1.0] - 2021-03-23

This is the initial experimental Unity MLAPI Package, v0.1.0.

### Added

- Refactored a new standard for Remote Procedure Call (RPC) in MLAPI which provides increased performance, significantly reduced boilerplate code, and extensibility for future-proofed code. MLAPI RPC includes `ServerRpc` and `ClientRpc` to execute logic on the server and client-side. This provides a single performant unified RPC solution, replacing MLAPI Convenience and Performance RPC (see [here](#removed-features)).
- Added standarized serialization types, including built-in and custom serialization flows. See [RFC #2](https://github.com/Unity-Technologies/com.unity.multiplayer.rfcs/blob/master/text/0002-serializable-types.md) for details.
- `INetworkSerializable` interface replaces `IBitWritable`.
- Added `NetworkSerializer`..., which is the main aggregator that implements serialization code for built-in supported types and holds `NetworkReader` and `NetworkWriter` instances internally.
- Added a Network Update Loop infrastructure that aids Netcode systems to update (such as RPC queue and transport) outside of the standard `MonoBehaviour` event cycle. See [RFC #8](https://github.com/Unity-Technologies/com.unity.multiplayer.rfcs/blob/master/text/0008-network-update-loop.md) and the following details:
  - It uses Unity's [low-level Player Loop API](https://docs.unity3d.com/ScriptReference/LowLevel.PlayerLoop.html) and allows for registering `INetworkUpdateSystem`s with `NetworkUpdate` methods to be executed at specific `NetworkUpdateStage`s, which may also be before or after `MonoBehaviour`-driven game logic execution.
  - You will typically interact with `NetworkUpdateLoop` for registration and `INetworkUpdateSystem` for implementation.
  - `NetworkVariable`s are now tick-based using the `NetworkTickSystem`, tracking time through network interactions and syncs.
- Added message batching to handle consecutive RPC requests sent to the same client. `RpcBatcher` sends batches based on requests from the `RpcQueueProcessing`, by batch size threshold or immediately.
- [GitHub 494](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/494): Added a constraint to allow one `NetworkObject` per `GameObject`, set through the `DisallowMultipleComponent` attribute.
- Integrated MLAPI with the Unity Profiler for versions 2020.2 and later:
  - Added new profiler modules for MLAPI that report important network data.
  - Attached the profiler to a remote player to view network data over the wire.
- A test project is available for building and experimenting with MLAPI features. This project is available in the MLAPI GitHub [testproject folder](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/tree/release/0.1.0/testproject).
- Added a [MLAPI Community Contributions](https://github.com/Unity-Technologies/mlapi-community-contributions/tree/master/com.mlapi.contrib.extensions) new GitHub repository to accept extensions from the MLAPI community. Current extensions include moved MLAPI features for lag compensation (useful for Server Authoritative actions) and `TrackedObject`.

### Changed

- [GitHub 520](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/520): MLAPI now uses the Unity Package Manager for installation management.
- Added functionality and usability to `NetworkVariable`, previously called `NetworkVar`. Updates enhance options and fully replace the need for `SyncedVar`s.
- [GitHub 507](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/507): Reimplemented `NetworkAnimator`, which synchronizes animation states for networked objects.
- GitHub [444](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/444) and [455](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/455): Channels are now represented as bytes instead of strings.

For users of previous versions of MLAPI, this release renames APIs due to refactoring. All obsolete marked APIs have been removed as per [GitHub 513](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/513) and [GitHub 514](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/514).

| Previous MLAPI Versions | V 0.1.0 Name |
| -- | -- |
| `NetworkingManager` | `NetworkManager` |
| `NetworkedObject` | `NetworkObject` |
| `NetworkedBehaviour` | `NetworkBehaviour` |
| `NetworkedClient` | `NetworkClient` |
| `NetworkedPrefab` | `NetworkPrefab` |
| `NetworkedVar` | `NetworkVariable` |
| `NetworkedTransform` | `NetworkTransform` |
| `NetworkedAnimator` | `NetworkAnimator` |
| `NetworkedAnimatorEditor` | `NetworkAnimatorEditor` |
| `NetworkedNavMeshAgent` | `NetworkNavMeshAgent` |
| `SpawnManager` | `NetworkSpawnManager` |
| `BitStream` | `NetworkBuffer` |
| `BitReader` | `NetworkReader` |
| `BitWriter` | `NetworkWriter` |
| `NetEventType` | `NetworkEventType` |
| `ChannelType` | `NetworkDelivery` |
| `Channel` | `NetworkChannel` |
| `Transport` | `NetworkTransport` |
| `NetworkedDictionary` | `NetworkDictionary` |
| `NetworkedList` | `NetworkList` |
| `NetworkedSet` | `NetworkSet` |
| `MLAPIConstants` | `NetworkConstants` |
| `UnetTransport` | `UNetTransport` |

### Fixed

- [GitHub 460](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/460): Fixed an issue for RPC where the host-server was not receiving RPCs from the host-client and vice versa without the loopback flag set in `NetworkingManager`.
- Fixed an issue where data in the Profiler was incorrectly aggregated and drawn, which caused the profiler data to increment indefinitely instead of resetting each frame.
- Fixed an issue the client soft-synced causing PlayMode client-only scene transition issues, caused when running the client in the editor and the host as a release build. Users may have encountered a soft sync of `NetworkedInstanceId` issues in the `SpawnManager.ClientCollectSoftSyncSceneObjectSweep` method.
- [GitHub 458](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/458): Fixed serialization issues in `NetworkList` and `NetworkDictionary` when running in Server mode.
- [GitHub 498](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/498): Fixed numerical precision issues to prevent not a number (NaN) quaternions.
- [GitHub 438](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/438): Fixed booleans by reaching or writing bytes instead of bits.
- [GitHub 519](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/519): Fixed an issue where calling `Shutdown()` before making `NetworkManager.Singleton = null` is null on `NetworkManager.OnDestroy()`.

### Removed

With a new release of MLAPI in Unity, some features have been removed:

- SyncVars have been removed from MLAPI. Use `NetworkVariable`s in place of this functionality. <!-- MTT54 -->
- [GitHub 527](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/527): Lag compensation systems and `TrackedObject` have moved to the new [MLAPI Community Contributions](https://github.com/Unity-Technologies/mlapi-community-contributions/tree/master/com.mlapi.contrib.extensions) repo.
- [GitHub 509](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/509): Encryption has been removed from MLAPI. The `Encryption` option in `NetworkConfig` on the `NetworkingManager` is not available in this release. This change will not block game creation or running. A current replacement for this functionality is not available, and may be developed in future releases. See the following changes:
    - Removed `SecuritySendFlags` from all APIs.
    - Removed encryption, cryptography, and certificate configurations from APIs including `NetworkManager` and `NetworkConfig`.
    - Removed "hail handshake", including `NetworkManager` implementation and `NetworkConstants` entries.
    - Modified `RpcQueue` and `RpcBatcher` internals to remove encryption and authentication from reading and writing.
- Removed the previous MLAPI Profiler editor window from Unity versions 2020.2 and later.
- Removed previous MLAPI Convenience and Performance RPC APIs with the new standard RPC API. See [RFC #1](https://github.com/Unity-Technologies/com.unity.multiplayer.rfcs/blob/master/text/0001-std-rpc-api.md) for details.
- [GitHub 520](https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/pull/520): Removed the MLAPI Installer.

### Known Issues

- `NetworkNavMeshAgent` does not synchronize mesh data, Agent Size, Steering, Obstacle Avoidance, or Path Finding settings. It only synchronizes the destination and velocity, not the path to the destination.
- For `RPC`, methods with a `ClientRpc` or `ServerRpc` suffix which are not marked with [ServerRpc] or [ClientRpc] will cause a compiler error.
- For `NetworkAnimator`, Animator Overrides are not supported. Triggers do not work.
- For `NetworkVariable`, the `NetworkDictionary` `List` and `Set` must use the `reliableSequenced` channel.
- `NetworkObjects`s are supported but when spawning a prefab with nested child network objects you have to manually call spawn on them
- `NetworkTransform` have the following issues:
  - Replicated objects may have jitter.
  - The owner is always authoritative about the object's position.
  - Scale is not synchronized.
- Connection Approval is not called on the host client.
- For `NamedMessages`, always use `NetworkBuffer` as the underlying stream for sending named and unnamed messages.
- For `NetworkManager`, connection management is limited. Use `IsServer`, `IsClient`, `IsConnectedClient`, or other code to check if MLAPI connected correctly.

## [0.0.1-preview.1] - 2020-12-20

This was an internally-only-used version of the Unity MLAPI Package
 2020-12-20 00:00:00 +00:00