com.unity.netcode.gameobjects@2.0.0-exp.4

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.4] - 2024-05-31

### Added

- Added `NetworkRigidbodyBase.AttachToFixedJoint` and `NetworkRigidbodyBase.DetachFromFixedJoint` to replace parenting for rigid bodies that have `NetworkRigidbodyBase.UseRigidBodyForMotion` enabled. (#2933)
- Added `NetworkBehaviour.OnNetworkPreSpawn` and `NetworkBehaviour.OnNetworkPostSpawn` methods that provide the ability to handle pre and post spawning actions during the `NetworkObject` spawn sequence. (#2912)
- Added a client-side only `NetworkBehaviour.OnNetworkSessionSynchronized` convenience method that is invoked on all `NetworkBehaviour`s after a newly joined client has finished synchronizing with the network session in progress. (#2912)
- Added `NetworkBehaviour.OnInSceneObjectsSpawned` convenience method that is invoked when all in-scene `NetworkObject`s have been spawned after a scene has been loaded or upon a host or server starting. (#2912)

### Fixed

- Fixed issue where non-authoritative rigid bodies with `NetworkRigidbodyBase.UseRigidBodyForMotion` enabled would constantly log errors about the renderTime being before `StartTimeConsumed`. (#2933)
- Fixed issue where in-scene placed NetworkObjects could be destroyed if a client disconnects early and/or before approval. (#2924)
- Fixed issue where a `NetworkObject` component's associated `NetworkBehaviour` components would not be detected if scene loading is disabled in the editor and the currently loaded scene has in-scene placed `NetworkObject`s. (#2912)
- Fixed issue where an in-scene placed `NetworkObject` with `NetworkTransform` that is also parented under a `GameObject` would not properly synchronize when the parent `GameObject` had a world space position other than 0,0,0. (#2898)

### Changed

- Change all the access modifiers of test class from Public to Internal (#2930)
- Changed messages are now sorted by enum values as opposed to ordinally sorting the messages by their type name. (#2929)
- Changed `NetworkClient.SessionModeTypes` to `NetworkClient.NetworkTopologyTypes`. (#2875)
- Changed `NetworkClient.SessionModeType` to `NetworkClient.NetworkTopologyType`. (#2875)
- Changed `NetworkConfig.SessionMode` to `NeworkConfig.NetworkTopology`. (#2875)

Tests/Runtime/Transports/UnityTransportTestHelpers.cs

@@ -8,7 +8,7 @@ using UnityEngine;
 
 namespace Unity.Netcode.RuntimeTests
 {
-    public static class UnityTransportTestHelpers
+    internal static class UnityTransportTestHelpers
     {
         // Half a second might seem like a very long time to wait for a network event, but in CI
         // many of the machines are underpowered (e.g. old Android devices or Macs) and there are
@@ -59,7 +59,7 @@ namespace Unity.Netcode.RuntimeTests
 
         // Information about an event generated by a transport (basically just the parameters that
         // are normally passed along to a TransportEventDelegate).
-        public struct TransportEvent
+        internal struct TransportEvent
         {
             public NetworkEvent Type;
             public ulong ClientID;
@@ -69,7 +69,7 @@ namespace Unity.Netcode.RuntimeTests
         // Utility class that logs events generated by a UnityTransport. Set it up by adding the
         // HandleEvent method as an OnTransportEvent delegate of the transport. The list of events
         // (in order in which they were generated) can be accessed through the Events property.
-        public class TransportEventLogger
+        internal class TransportEventLogger
         {
             private readonly List<TransportEvent> m_Events = new List<TransportEvent>();
             public List<TransportEvent> Events => m_Events;