Mirror/doc/Articles/General/ChangeLog.md

Change Log

Mirror is published to the Asset Store at the start of every month, unless some critical issue causes a delay.

Mirror uses semantic versioning, and the versions shown here are those that were published to the Asset Store, and occasionally major version bumps happen mid-month between store submissions and are therefore not individually shown here.

Version 25.x.x -- In Progress

• Added: Middleware Transport
• Fixed: Authenticators and assemblies with only messages and no Behaviors weaver failure
• Changed: Breaking Removed older obsolete methods and tests

Version 23.0.3 -- 2020-Oct-24

• Added: Support null when serializing classes
• Added: Support recursive data types
• Added: Support jagged arrays
• Added: New generic Read and Write methods for typed used by mirror and user callbacks
• Added: NetworkAnimator now syncs animator.speed
• Added: NetworkTransform Server Teleport function
• Added: New websockets transport: SimpleWebTransport
• Fixed: ClientScene.localplayer is now set to null when it is destroyed
• Fixed: Fixing IndexChanged hook not being called for NetworkRoomPlayer
• Fixed: Fixing NullReferenceException when loading scene
• Fixed: Fixing NetworkConnectionToClient for IL2CPP
• Fixed: NullReferenceException in tanks example when running in headless server only
• Changed: Breaking Use SyncLists/SyncSet/SyncDictionary directly, eg SyncList<int>, see Pull Request 2307
• Changed: Breaking Renamed IMessageBase to NetworkMessage, see Pull Request 2317
• Changed: OnSerialize now includes the component index as byte before serializing each component. Better CPU performance at the cost of bandwidth
• Changed: Can now have 256 NetworkBehaviours per NetworkIdentity
• Removed: Breaking SyncEvents, see Pull Request 2178
• Removed: Breaking Removing manual invoke for Cmd and RPC, see Pull Request 2223
• Removed: Breaking Removed Serialize/Deserialize in messages, see Pull Request 2317
• Removed: Breaking Removing auto initialize for SyncLists/SyncSet/SyncDictionary, see Pull Request 2330
• Removed: Breaking Replacing Ninja.WebSockets with SimpleWebTransport

Version 17.3.0 -- 2020-Sep-04

• Added: NetworkAnimator now syncs Layer Weight
• Added: Lists can now be sent in Command/Rpc/Message/etc
• Added: [Server]/[Client] can now be used outside of NetworkBehaviour
• Added: Experimental NetworkLerpRigidbody component that syncs position and velocity and applies them using Lerp.
• Fixed: NetworkAnimator now fires triggers immediately on owner
• Fixed: isServer will now keep its value after calling NetworkServer.Destroy
• Fixed: [Client] error message now correctly logs the name of the method
• Fixed: Messages can now be nested within other Message types
• Fixed: [Server]/[Client] now correctly give error when used on abstract method
• Fixed: Abstract classes can now implement IMessageBase
• Fixed: Weaver now correctly gives error when generating a reader methods for abstract classes
• Changed: NetworkServer no longer runs update if there are no connections
• Changed: NetworkBehaviour.IsDirty is now a public
• Changed: SyncEvent are now Obsolete and will be removed in the next version
• Removed: isHeadless is now Obsolete, Use preprocessor directive #if UNITY_SERVER instead

Version 16.9.0 -- 2020-Aug-01

• Added: NetworkHeadlessLogger log handler that sets console color
• Added: New Mirror List Server, see Cloud folder
• Added: Experimental NetworkRigidbody component that syncs velocity and other rigidbody settings
• Fixed: base method called inside Command/RPC now work if the first base class does not have an override
• Fixed: NetworkRoomPlayer now cleans up roomSlots on disable
• Fixed: Fallback and Multiplex now disable their transports when they are disabled
• Fixed: Websockets transport SocketState now returns false if socket is undefined
• Fixed: SyncEvents can now have the same name if they are in different classes
• Fixed: You can now have multiple SyncEvents per class
• Fixed: Message base classes are now processed even if they are declared later in the file
• Fixed: Registering a prefab with and same GUID no longer gives an error
• Fixed: Weaver now generates Serialize methods for classes that implement IMessageBase
• Changed: NetworkProximityChecker now has slightly better performance
• Changed: ClientRpc no longer need Rpc prefix
• Changed: Commands no longer need Cmd prefix
• Changed: TargetRpc no longer need Target prefix
• Changed: NetworkManager.networkSceneName is now protected set as it should not be set directly

Version 16.1.1 -- 2020-Jun-13

• Added: [Command] now has an ignoreAuthority option for invoking Commands on objects the client doesn't have authority over, and Command methods can have an optional NetworkConnectionToClient sender parameter.
• Added: [ClientRpc] now has an excludeOwner option to prevent messages from going to the client that owns the object.
• Added: Commands and Rpc's can now be declared as virtual and overridden in derived classes.
• Added: NetworkLogSettings component and Log Settings Window.
• Added: SyncLists now support AddRange, InsertRange, and RemoveAll.
• Added: Network Room Manager now has a virtual OnRoomServerPlayersNotReady that fires on server from CheckReadyToBegin.
• Added: Network Room Player template now includes base Network Behaviour overrides.
• Added: Network Room Player now has a virtual hook for the index SyncVar, and the override is in the template.
• Added: Experimental Network Transform with more control settings and features.
• Fixed: Network Room Manager.minPlayers is now protected so it's available for derived classes.
• Fixed: Network Room Manager no longer does redundant player prefab registration in OnStartClient.
• Fixed: Network Room Player OnClientEnterRoom now correctly only fires on clients.
• Fixed: RegisterClientMessages was being incorrectly invoked for every scene change.
• Fixed: Network Behaviour SyncMode and SyncInterval was not showing in the inspector in some cases (regression).
• Fixed: Network Manager now cleans up network objects better when server stops.
• Fixed: Network Manager no longer tries to change to offline scene redundantly in StopClient.
• Fixed: Network Connection's lastMessageTime wasn't being properly initialized, causing incorrect idle timeout disconnects.
• Fixed: Websockets transport now correctly pauses and queues messages during scene changes and should otherwise be more stable with SSL
• Changed: Breaking Websockets Transport now requires full path to PFX Certificate file.
• Changed: Improvements were made to the Tanks example.
• Changed: Network Room Player now uses virtual SyncVar hook for ReadyStateChanged.
• Changed: Network Proximity Checker now uses direct distance check against player objects instead of Physics.SphereCastNonAlloc for better performance.
• Removed: Discord Transport

Version 13.0.1 -- 2020-May-06

• Added: Multiple Concurrent Additive Scenes Example.
• Added: Network Match Checker component. Use this component to create many concurrent isolated matches within a single game server.
• Added: SyncLists now have Find and FindAll functions.
• Added: Network Behaviour now has OnStopServer and OnStopClient virtual methods.
• Added: Weaver now supports custom Reader & Writer for types in other assemblies.
• Added: Network Manager now has an optional setting to check for and disconnect remote connections that have gone silent for a specified interval.
• Added: Network Manager now has a ReplaceHandler method to avoid warnings when attempting to double register message handlers.
• Added: NetworkServer.SendToAll now has an optional bool to only send to ready clients, and a SendToReady method that doesn't require a Network Identity.
• Fixed: Network Animator no longer double-fires SetTrigger / ResetTrigger on the host client.
• Fixed: Network Animator is no longer limited to one component per object.
• Fixed: Destroy is no longer invoked twice on the server for the player object.
• Fixed: RegisterClientMessages is no longer invoked twice on the client.
• Fixed: Network Behaviour SyncMode and SyncInterval was not showing in the inspector in some cases.
• Fixed: Telepathy Transport - LateUpdate now processes a limited amount of messages per tick to avoid deadlocks.
• Changed: Network Behaviour: OnNetworkDestroy was renamed to OnStopClient.
• Changed: Breaking RemovePlayerMessage has been removed as a potential security risk. Use NetworkServer.RemovePlayerForConnection instead.
• Changed: Breaking Network Behaviour: OnRebuildObservers, OnCheckObserver, and OnSetHostVisibility were moved to a separate class called NetworkVisibility.

Version 11.4.2 - 2020-Apr-03

• Added: SyncVar hooks can be virtual now, and overriden in a derived class.
• Added: Virtual OnRoomStopServer added to Network Room Manager and Script Template.
• Added: 10K Networked Objects Benchmark Example.
• Fixed: Setting breakpoints in an IDE for Command's and Rpc's work correctly now.
• Fixed: NetworkServer.SendToObservers now reports correct channel to Mirror Profiler.
• Fixed: Network Room Manager's roomPlayerPrefab is now protected so it can be accessed in derived classes.
• Fixed: Network Room Player inspector and documentation updated to be less confusing.
• Fixed: Network Identity no longer double calls NetworkServer.Destroy.
• Fixed: Network Animator now correctly excludes parameters controlled by curves.
• Fixed: Network Behaviour now uses a property drawer for the SyncVar label so it displays better.
• Fixed: NetworkServer.SendToReady overloads are no longer ambiguous.
• Fixed: Network Room Manager no longer incorrectly destroys the game player object. It's left in the game scene to be cleaned up by Unity when the scene changes.
• Fixed: StopHost correctly raises OnServerDisconnect in Network Manager, and correctly unwinds before shutting down the server.
• Fixed: isServer is no longer incorrectly false on server in Network Identity's OnDestroy.
• Changed: Network Manager offlineScene and onlineScene store full paths now, so use SceneManager.GetActiveScene().path instead.
• Changed: Network Manager HUD now calls StopHost / StopServer / StopClient more appropriately.
• Changed: Network Manager HUD labels no longer say LAN. Associated docs also cleaned up to eliminate the misconception of Mirror being LAN only solution.
• Changed: Network Transform compression removed and message handling is much simpler now.
• Changed: Network Scene Checker initializes in Awake again because OnEnable proved to be unreliable in some cases.
• Changed: Network Manager will no longer lose references to scenes if they aren't in the Build Settings scene list, however moving or renaming scenes may cause references to be lost.
• Changed: Breaking Many obsolete methods and properties removed. Use version 10 first if upgrading from UNet or older Mirror. See Deprecations for complete list.

Version 10.4.7 - 2020-Mar-03

• Added: Weaver will now block play mode and builds if there are weaver errors and show them in the console again.
• Added: PooledNetworkReader and PooledNetworkWriter, both Disposable.
• Added: NetworkReader.ReadMessage<T>.
• Added: Network Discovery now handles headless server mode.
• Added: SyncVar, Cmd's and Rpc's now support Scriptable Objects via CreateInstance on the receiving side.
• Added: Discord Transport Removed in v16.1.1
• Fixed: isClient now returns true on clients in OnDestroy for networked objects.
• Fixed: Host Player race condition for Ready message.
• Fixed: Network Animator and Network Transform now correctly check for client authority in their respective Command methods.
• Fixed: Network Room Manager Script Template had a virtual method instead of an override.
• Fixed: Network Server's calls to NetworkConnectionToClient.Send now includes the channelId parameter that was missing.
• Fixed: Network Server's calls to SendToAll, SendToReady, and SendToObservers send to the exact connection if it is detected as local connection, instead of falling back to the .localConnection.
• Fixed: Network Server.SpawnObjects returns false if server isn't running.
• Fixed: Network Transform rotation detection improved.
• Fixed: Weaver generated code now builds properly for IL2CPP (again).
• Changed: StartHost in Network Manager is no longer a virtual method (and shoudn't have been). Override OnStartHost instead.
• Changed: Network Room Manager's OnRoomServerSceneLoadedForPlayer now includes NetworkConnection parameter.
• Changed: Network Scene Checker now works from OnEnable instead of Awake, and uses Scene instead of scene name.
• Changed: Renamed NeworkWriter.Write to WriteMessage for consistency.

Version 9.0.2 - 2020-Feb-04

• Added: Network Animator now has a ResetTrigger function and server / client authority warnings.
• Added: Network Transform now has 3 new floats for Sensitivity to quiet down message traffic from micro changes.
• Added: Network Observer added to Script Templates -- See the new Mirror section in the Assets > Create menu.
• Added: Network Discovery has been reimplemented including an example and script template -- thanks to all those who contributed!
• Added: Network Scene Checker Component.
• Added: Mirror Icon for all components.
• Added: Inspector Headers to Network Behaviour, Network Transform, and Network Animator.
• Added: URI added to supported data types.
• Added: NetworkReaderPool has been implemented in place of new NetworkReader everywhere, significantly reducing garbage allocation.
• Fixed: Network Transform and Network Animator now uses NetworkWriterPool.
• Fixed: Network Transform and Network Animator now respect hasAuthority for client owned objects.
• Fixed: Network Transform will now correctly teleport if time / distance are too large.
• Fixed: Network Animator now correctly syncs when clientAuthority is false.
• Fixed: Client owned objects are now destroyed when client disconnects (regression).
• Fixed: Client authority is now preserved for networked objects carried through scene change in DontDestroyOnLoad (DDOL).
• Fixed: Starting server immediately after cancelling client connection attempt no longer throws a NRE.
• Fixed: IL2CPP builds no longer trigger an assert when stopping server.
• Fixed: SyncVars are now set for Host player before hook is invoked.
• Fixed: SyncDictionary now correctly updates the value before invoking callbacks.
• Fixed: StopHost no longer tries to change to the Offline scene twice.
• Fixed: Network Room Manager roomSlots are now correctly managed on both server and clients.
• Fixed: Network Room Manager now correctly supports multiple GamePlay scenes and adds a virtual OnRoomServerAddPlayer.
• Fixed: Additive scene operations no longer incorrectly lead to extraneous AddPlayer messages from clients.
• Fixed: NetworkWriterPool is now used everywhere instead of new NetworkWriter (we missed a couple when the pool was implemented).
• Fixed: Patch for Unity 2019.3.x RequestScriptReload was moved to EditorUtility from UnityEditorInternal.InternalEditorUtility.
• Fixed: Arrays of custom types are now correctly supported.
• Changed: Shutdown logic has been streamlined.
• Changed: NetworkIdentity.GetSceneIdenity method renamed to GetSceneIdentity (name typo).
• Changed: OnApplicationQuit virtual method added to Transport class and Transport.activeTransport.Shutdown() is no longer called from Network Manager.
• Changed: Breaking SyncVar Hooks now require two parameters, one each for the old and new value, and the property value is now set before the hook is called.

Version 6.7.7 - 2020-Jan-01

• Added: Script Templates -- See the new Mirror section in the Assets > Create menu.
• Added: Full Text Search added to docs.
• Added: Basic Chat example.
• Added: Some youtube videos have been created and linked from various doc pages where appropriate.
• Added: Transports can now support using a URI for connection including port.
• Added: version.txt file is now included with the release version in it.
• Added: Structs that inherit from IMessageBase now generate serializers.
• Fixed: Components now appear in docs under API Reference.
• Fixed: Delayed disconnect in Basic Authenticator.
• Fixed: Multiplexer now handles OnClientConnect and GetMaxMessageSize correctly.
• Fixed: Network Room Manager OnRoomServerCreateGamePlayer now includes the Room Player Object as parameter.
• Changed: Room example now has Network Room Manager in the Offline scene and correctly switches to the Room scene when server / client is started.
• Changed: Network Manager startPositionIndex and loadingSceneAsync are now public.
• Changed: SceneMessage now has an optional customHandling flag so devs can handle their own custom scene loading, e.g. using Addressables.
• Changed: Breaking Network Transform now defaults to server authority and has a Client Authority checkbox.

Version 6.3.0 - 2019-Dec-09

• Added: SyncMode selector now works for components on any scene objects owned by a client in addition to the player object, e.g. pets.
• Added: MessageBase now fully supports inheritance.
• Added: Room example now has UI button for host to return all clients to the Room scene and other improvements.
• Fixed: ReplacePlayerForConnection now works for existing scene objects as long as another player doesn't own the targetted object.
• Fixed: isClient and isServer are now true for networked objects in Start and OnStartClient / OnStartServer, respectively.
• Fixed: hasAuthority is now set before OnStartClient and OnStartLocalPlayer are invoked.
• Changed: connectionToClient is now used to assign client authority.
• Changed: In many respects, the Host player acts a lot more like a client and will reveal bugs better.
• Changed: ReplacePlayerForConnection now has an optional bool to retain authority of the previous object (default = false).
• Removed: NetworkServer.SpawnWithClientAuthority is deprecated in favor of overloads of NetworkServer.Spawn.

Version 5.0.2 - 2019-Nov-03

• Added: SyncList and SyncSet custom Equality Comparer support.
• Added: Custom serializers may be implemented for any type in Cmd's and Rpc's.
• Added: Fallback Transport.
• Fixed: SyncVar hooks are no longer called in Host if no change.
• Fixed: Network Identity no longer throws a null reference exception in RemoveClientAuthority.
• Fixed: Server transport now suspended during scene change to prevent erroneous messages.
• Fixed: SyncList, SyncDictionary and SyncSet now use a custom IEnumerator to avoid memory allocation.
• Fixed: sceneID is no longer reset in certain cases when editing a prefab.
• Changed: PreprocessorDefine code moved to CompilerSymbols folder to avoid paradox of missing symbols preventing the symbols being added to the project.
• Changed: Host player no longer gets authority assigned to all objects by default.
• Changed: Commands no longer bypass serialization for Host player, making debugging easier.
• Changed: Local connections now maintain their own message queue.
• Changed: Transport.Available is now abstract.
• Removed: Network Identity: Local Player Authority has been removed as no longer necessary.

Version 4.0.7 - 2019-Oct-03

• Added: Authenticators support to authenticate clients in the Connect phase.
• Added: Profiler events. These events can be subscribed to by the Network Profiler to provide visual information.
• Added: Transports now include channel in profiler events.
• Added: Transport abstract class now supports sending a message to a list of connection id's.
• Fixed: SceneMessage now has sceneOperation enum so clients can properly handle additive scenes.
• Fixed: NetworkClient handlers are now cleared in Shutdown.
• Fixed: Offline scene is no longer reloaded when client fails to connect or is rejected.
• Fixed: Start Position Index is now reset to zero when server is stopped.
• Fixed: Network Room Players are now all in DontDestroyOnLoad so they don't respawn in the game scene.
• Fixed: Network Room example player controller restores main camera on disable.
• Fixed: Components with different sync intervals were not sending updates to clients.
• Fixed: In certain cases, weaver wouldn't weave some external assemblies.
• Fixed: Network Animator now does a full sync for new clients.
• Fixed: Network Behaviour inspector now shows SyncMode for private SyncVars.
• Fixed: Calling Commands and Rpcs of parent classes from inherited classes works as it should.
• Fixed: Telepathy no longer hangs when attempting to connect to a nonexistent host.
• Fixed: Websockets Transport now properly returns the client endpoint information via ServerGetClientAddress.
• Fixed: WebGL build now works with ArraySegment.
• Changed: Mirror is now free of garbage memory allocation on the sending side.
  • Some transports may still have a little garbage allocation yet.
• Changed: Deprecated the AddPlayerMessage extraMessage byte[] in favor of an easier approach to Custom Players.
  • This is a breaking change: The virtual method OnServerAddPlayer loses the AddPlayerMessage parameter.
• Changed: NetworkIdentity.RemoveAuthorityForConnection is now easier to use: no need to supply the current "owner" anymore.
• Changed: Renamed NetworkConnection.playerController to identity ... see Deprecations for details.
• Changed: Lobby system renamed to Room to better align the name for what it is and make way for a future Lobby framework.

Version 3.17.4 - 2019-Sep-04

• Added: Custom Network Readers & Writers via extension methods.
• Added: Network Sync Mode selector on components to sync to observers (default) or just the owner.
• Added: SyncVars now support structs and enums in other assemblies.
• Added: Support for reading and writing array segments.
• Added: Network Animator now has layers support.
• Added: New virtual method OnServerChangeScene to Network Manager.
• Added: XML summary comments for intellisense and future generated class docs.
• Updated Examples and Documentation.
• Fixed: SceneID was not set to 0 for prefab variants.
• Fixed: Observers were not properly rebuilt on scene changes.
• Fixed: SyncVar hooks were not able to change other SyncVars in Host mode.
• Fixed: Telepathy not setting socket options on accepted clients.
• Fixed: Catch IL2CPP bug.
• Fixed: Telepathy and Websockets now start connections ID's at 1 instead of 2.
• Fixed: Websockets support for SSL restored.
• Fixed: Network Manager no longer complains about missing player prefab if auto-create is disabled.
• Fixed: Removed a garbage allocation in Network Transform.
• Fixed: NetworkClient.Ready was being called unncessarily in certain cases, e.g. SceneMessages.
• Changed: Documentation moved to website and API generated docs implemented.
• Changed: AddPlayerForConnection handler is now internal to keep safety checks intact.
• Changed: A bunch of messages converted to value types for performance.

Version 3.11.6 - 2019-Jul-10

• Fixed: Telepathy IPv4, IPv6, and FQDN should all work now.
• Fixed: TelepathyTransport error in UWP builds.
• Fixed: OnApplicationQuit is handled better now.
• Fixed: Performance and memory allocation improvements.
• Changed: Telepathy Source is now included instead of a DLL.

Version 3.10.10 - 2019-Jun-19

• Added: Scene Message now supports params for SceneMode (Normal / Additive) and PhysicsMode (2D / 3D).
• Added: ClientScene.Send now has an optional ChannelId parameter.
• Added: ASMDEF to Examples folder.
• Added: Support for sending and receiving ArraySegment<byte>
• Added: IReadOnlyList<T> in SyncLists.
• Fixed: Network Manager not switching to correct scene in some cases.
• Fixed: ListServer Ping not found in WebGL.
• Fixed: TelepathyTransport.GetMaxPacketSize uses the new configurable max size.
• Fixed: Significant reduction in memory allocation and garbage collection.
• Changed: Use transform.localPosition and transform.localRotation for better VR support.
• Removed: Websockets send queues (they never worked) and SSL (temporarily because it didn't work).

Version 3.6.7 -- 2019-Apr-28

• Changed: NetworkReader now uses ArraySegment<byte> to minimize allocations.

Version 3.6.6 -- 2019-Apr-24

• Fixed: Reverted two internal refactor commits that had unintended consequences.

Version 3.6.5 -- 2019-Apr-23

• Fixed: Unity 2019.1 compatibility.
• Fixed: Erroneous error indicating prefabs were missing Scene ID's.
• Fixed: OnDeserializeSafely now works without allocations.
• Fixed: Weaver not writing symbol files, preventing breakpoints from working in Visual Studio.
• Fixed: Network Identity SceneID generation now uses RNG Crypto Service Provider.
• Fixed: Scene lighting in Additive example.
• Fixed: Player Prefab transform details now respected when instantiated in the absence of NetworkStartPosition.
• Removed: Tests folder from Unity package generation (no end-user value).

Version 3.5.9 -- 2019-Apr-12

• Fixed: Network Manager round-robin mode using NetworkStartPosition objects now uses hierarchy sibling order.
• Fixed: IsLocalPlayer is now reliably accurate in Start() by combining OwnerMessage and SpawnPrefabMessage.
• Fixed: Stack overflow issues with Weaver and Cecil.
• Fixed: Corrected assembly paths passed to weaver.
• Fixed: Enum bandwdith reduced in SyncVars, Commands, and Rpcs.
• Fixed: Placeholder files added for removed code files so updating works better.
• Changed: Network Manager isHeadless is a static property now, changed from IsHeadless().

Version 3.5.3 -- 2019-Apr-10

• Fixed: Exceptions in overrides of Network Manager and other components incorrectly silenced.
• Fixed: Lobby system sometimes would not spawn and swap game player prefabs into the game scene.
• Fixed: Application.targetFrameRate no longer set in host mode.
• Changed: Telepathy: Split MaxMessageSize to allow setting a different value for client and server.

Version 3.4.9 -- 2019-Apr-6

• Added: Semantic Versioning (which is why we jumped from 1.6 to 3.4.9).
• Added: SyncDictionary.
• Added: SyncHashSet.
• Added: SyncSortedSet.
• Added: SyncList and SyncDictionary support all IList and IDictionary derived types, respectively.
• Added: Documentation for SyncVars.
• Added: Documentation for SyncEvents.
• Added: NoRotation to Network Transform.
• Added: Scale is now included in spawn payload along with position and rotation.
• Added: Generic IMessageBase to allow struct message types.
• Added: Weaver now supports Vector2Int and Vector3Int.
• Added: List Server example.
• Added: Additive Scenes example.
• Fixed: SyncLists now work correctly for primitives and structs.
• Fixed: SyncVar Hooks now will update the local property value after the hook is called.
  • You no longer need to have a line of code in your hook method to manualy update the local property.
• Fixed: Host should not call Disconnect on transports.
• Fixed: NetworkAnimimator now supports up to 64 animator parameters.
• Fixed: Network Manager StartServer no longer assumes scene zero is the default scene...uses GetActiveScene now.
• Fixed: NetworkServer.Shutdown now resets netId to zero.
• Fixed: Observers are now properly rebuilt when client joins and OnRebuildObservers / OnCheckObserver is overridden.
• Fixed: NetworkProximityChecker: On rare occasion, player could be excluded from observers rebuild.
• Fixed: NetworkLobbyPlayer OnClientReady works now.
• Fixed: NetworkLobbyPlayer Remove button not showing for P1 when Server Only.
• Fixed: NetworkLobbyManager pendingPlayers and lobbySlots lists are now public for inheritors.
• Fixed: Offline scene switching now works via StopClient().
• Fixed: Pong example updated.
• Fixed: Source Weaver was deleting PDB files, preventing breakpoints and debugging from working.
• Changed: TargetRpc NetworkConnection paramater is now optional...the calling client's NetworkConnection is default.
• Changed: Movement example replaced with Tank example.
• Changed: NetworkClient functions are all static now, so the singleton is gone. Use NetworkClient directly.
• Changed: SyncList now supports structs directly, making SyncListSTRUCT obsolete.
• Removed: SyncListSTRUCT - Use SyncList instead.
• Removed: NetworkClient.ShutdownAll is obsolete -- Use NetworkClient.Shutdown instead.

Version 1.6 -- 2019-Mar-14

• Fixed: Websockets transport moved to Mirror.Websocket namespace.
• Fixed: Network Animator bandwidth abuse.
• Fixed: Network Animator float sync bug.
• Fixed: Persistent SceneID's for Networked objects.
• Changed: Documentation for Transports.
• Changed: Weaver is now full source...FINALLY!
• Changed: ClientScene.AddPlayer 2nd parameter is now byte[] extraData instead of MessageBase extraMessage.
  • Please refer to the code sample here to see how to update your code.
• Changed: Network Manager -- Headless Auto-Start moved to Start() from Awake().
• Changed: Removed Message ID's for all messages - See Network Messages for details.
  • Message IDs are now generated automatically based on the message name.
  • Previously you would call Send(MyMessage.MsgId, message), now you call Send(message).
• Removed: Documentation for Groove Transport - use Websockets Transport instead.

Version 1.5 -- 2019-Mar-01

• Added: Migration Tool to (mostly) automate conversion from UNet.
• Added: Full support for WebSockets and WebSocketsSecure to replace UNet LLAPI.
• Added: Transport Multiplexer - allows the use of multiple concurrent transports.
• Added: NetworkLobbyManager and NetworkLobbyPlayer with example game.
• Added: Configurable Server Tickrate in Network Manager.
• Added: New virtual OnClientChangeScene fires right before SceneManager.LoadSceneAsync is executed.
• Added: Unit tests for Weaver.
• Fixed: Garbage allocations removed from a lot of things (more work to do, we know).
• Fixed: NetworkProximityChecker now uses OverlapSphereNonAlloc and OverlapCircleNonAlloc.
• Fixed: SyncVar hook not firing when clients joined.
• Fixed: Network Manager no longer assumes it's on Scene(0) in Build Settings.
• Fixed: Network Animator no longer lmited to 6 variables.
• Fixed: TelepathyTransport delivering messages when disabled.
• Changed: Minimum Unity version: 2018.3.6
• Removed: SceneAttribute.cs (merged to CustomAttributes.cs).
• Removed: NetworkClient.allClients (Use NetworkClient.singleton instead).
• Removed: NetworkServer.hostId and NetworkConnection.hostId (holdovers from LLAPI).
• Removed: NetworkConnection.isConnected (Network Connection is always connected).
• Removed: Transport.GetConnectionInfo (Use ServerGetClientAddress instead).

Version 1.4 -- 2019-Feb-01

• Added: HelpURL attirbutes to components.
• Added: Automatic targetFramerate for headless builds.
• Added: ByteMessage to Messages class.
• Fixed: Connectiing state can be cancelled properly.
• Fixed: Network Transform interpolation applied to client's own object.
• Fixed: Objects are spawned with correct rotation.
• Fixed: SceneId assignment.
• Fixed: Changed syncInterval wasn't saved...it is now.
• Fixed: Additive Scene loading.
• Changed: Mirror is now full source -- no more DLL's.
• Changed: Transports are now components -- TCP, UDP, WebGL, Steam.
• Changed: Transport class now dispatches Unity Events.
• Changed: NetworkServer.SendToClientOfPlayer uses NetworkIdentity now.
• Changed: NetworkServer.SendToObservers uses NetworkIdentity parameter now.
• Changed: NetworkServer.SendToReady uses NetworkIdentity now.
• Changed: NetworkServer.DestroyPlayerForConnection uses NetworkIdentity.spawned now.
• Changed: NetworkConnection.Dispose uses NetworkIdentity.spawned now.
• Changed: NetworkReader.ReadTransform uses NetworkIdentity.spawned now.
• Changed: Network Transform reimplemented -- physics removed, code simplified.
• Removed: NetworkClient.hostPort (port is handled at Transport level).
• Removed: NetworkServer.FindLocalObject (Use NetworkIdentity.spawned[netId] instead).
• Removed: ClientScene.FindLocalObject (Use NetworkIdentity.spawned[netId] instead).