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/Components/NetworkVariableTestComponent.cs

@@ -6,7 +6,7 @@ using UnityEngine;
 
 namespace Unity.Netcode.RuntimeTests
 {
-    public class EmbeddedManagedNetworkSerializableType : INetworkSerializable
+    internal class EmbeddedManagedNetworkSerializableType : INetworkSerializable
     {
         public int Int;
         public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
@@ -14,7 +14,7 @@ namespace Unity.Netcode.RuntimeTests
             serializer.SerializeValue(ref Int);
         }
     }
-    public class ManagedNetworkSerializableType : INetworkSerializable, IEquatable<ManagedNetworkSerializableType>
+    internal class ManagedNetworkSerializableType : INetworkSerializable, IEquatable<ManagedNetworkSerializableType>
     {
         public string Str = "";
         public int[] Ints = Array.Empty<int>();
@@ -104,7 +104,7 @@ namespace Unity.Netcode.RuntimeTests
             return 0;
         }
     }
-    public struct UnmanagedNetworkSerializableType : INetworkSerializable, IEquatable<UnmanagedNetworkSerializableType>
+    internal struct UnmanagedNetworkSerializableType : INetworkSerializable, IEquatable<UnmanagedNetworkSerializableType>
     {
         public FixedString32Bytes Str;
         public int Int;
@@ -143,7 +143,7 @@ namespace Unity.Netcode.RuntimeTests
     }
 
 
-    public struct UnmanagedTemplateNetworkSerializableType<T> : INetworkSerializable where T : unmanaged, INetworkSerializable
+    internal struct UnmanagedTemplateNetworkSerializableType<T> : INetworkSerializable where T : unmanaged, INetworkSerializable
     {
         public T Value;
 
@@ -153,7 +153,7 @@ namespace Unity.Netcode.RuntimeTests
         }
     }
 
-    public struct ManagedTemplateNetworkSerializableType<T> : INetworkSerializable where T : class, INetworkSerializable, new()
+    internal struct ManagedTemplateNetworkSerializableType<T> : INetworkSerializable where T : class, INetworkSerializable, new()
     {
         public T Value;