chore: merge 2.3.0 back to develop-2.0.0 (#3390)

This PR merges the changes made to the v2.3.0 branch back into
develop-2.0.0 while also adding an unreleased section in the changelog.

## Changelog

NA

## Testing and Documentation

- No tests have been added.
- No documentation changes or additions were necessary.

<!-- Uncomment and mark items off with a * if this PR deprecates any
API:
### Deprecated API
- [ ] An `[Obsolete]` attribute was added along with a `(RemovedAfter
yyyy-mm-dd)` entry.
- [ ] An [api updater] was added.
- [ ] Deprecation of the API is explained in the CHANGELOG.
- [ ] The users can understand why this API was removed and what they
should use instead.
-->

Author: NoelStephensUnity

com.unity.netcode.gameobjects/CHANGELOG.md

@@ -8,6 +8,18 @@ Additional documentation and release notes are available at [Multiplayer Documen
 
 ## [Unreleased]
 
+### Added 
+
+
+### Fixed
+
+
+### Changed
+
+
+
+## [2.3.0] - 2025-04-09
+
 ### Added
 
 - Added `NetworkManager.OnPreShutdown` which is called before the NetworkManager cleans up and shuts down. (#3366)

com.unity.netcode.gameobjects/Runtime/Components/Interpolator/BufferedLinearInterpolator.cs

@@ -101,7 +101,7 @@ protected internal struct BufferedItem
             public double TimeSent;
 
             /// <summary>
-            /// The constructor.
+            /// Constructor that accepts an item identifier.
             /// </summary>
             /// <param name="item">The item value.</param>
             /// <param name="timeSent">The time the item was sent.</param>
@@ -112,6 +112,19 @@ public BufferedItem(T item, double timeSent, int itemId)
                 TimeSent = timeSent;
                 ItemId = itemId;
             }
+
+            /// <summary>
+            /// The original constructor.
+            /// </summary>
+            /// <param name="item">The item value.</param>
+            /// <param name="timeSent">The time the item was sent.</param>
+            public BufferedItem(T item, double timeSent)
+            {
+                Item = item;
+                TimeSent = timeSent;
+                // Generate a unique item id based on the time to the 2nd decimal place
+                ItemId = (int)(timeSent * 100);
+            }
         }
 
         /// <summary>

com.unity.netcode.gameobjects/Tests/Runtime/NetworkVisibilityTests.cs

@@ -87,8 +87,9 @@ public IEnumerator HideShowAndDeleteTest()
             sessionOwnerNetworkObject.NetworkShow(m_ClientNetworkManagers[clientIndex].LocalClientId);
             sessionOwnerNetworkObject.Despawn(true);
 
-            // Expect no exceptions
-            yield return s_DefaultWaitForTick;
+            // Expect no exceptions while waiting to show the object and wait for the client id to be removed
+            yield return WaitForConditionOrTimeOut(() => !m_SessionOwner.SpawnManager.ObjectsToShowToClient.ContainsKey(m_ClientNetworkManagers[clientIndex].LocalClientId));
+            AssertOnTimeout($"Timed out waiting for client-{m_ClientNetworkManagers[clientIndex].LocalClientId} to be removed from the {nameof(NetworkSpawnManager.ObjectsToShowToClient)} table!");
 
             // Now force a scenario where it normally would have caused an exception
             m_SessionOwner.SpawnManager.ObjectsToShowToClient.Add(m_ClientNetworkManagers[clientIndex].LocalClientId, new System.Collections.Generic.List<NetworkObject>());

com.unity.netcode.gameobjects/package.json

@@ -2,7 +2,7 @@
     "name": "com.unity.netcode.gameobjects",
     "displayName": "Netcode for GameObjects",
     "description": "Netcode for GameObjects is a high-level netcode SDK that provides networking capabilities to GameObject/MonoBehaviour workflows within Unity and sits on top of underlying transport layer.",
-    "version": "2.2.0",
+    "version": "2.3.0",
     "unity": "6000.0",
     "dependencies": {
         "com.unity.nuget.mono-cecil": "1.11.4",