AWS gamelift documentation change

Service: gamelift · 2025-05-31 · Documentation low

File: gamelift/latest/fleetiqguide/gsg-release-notes.md

Summary

Updated SDK versions, release dates, and added release notes for version 5.3.0 including improved validation, process termination logic, and plugin updates

Security assessment

Changes focus on SDK version updates, error handling improvements, and plugin workflow enhancements. No explicit security vulnerabilities, patches, or security feature documentation are mentioned.

Diff

diff --git a/gamelift/latest/fleetiqguide/gsg-release-notes.md b/gamelift/latest/fleetiqguide/gsg-release-notes.md
index b8ff3650d..d16b4aa64 100644
--- a//gamelift/latest/fleetiqguide/gsg-release-notes.md
+++ b//gamelift/latest/fleetiqguide/gsg-release-notes.md
@@ -23,2 +23,2 @@ Service release | AWS SDK | Server SDK | Plugin for Unreal | Plugin for Unity |
-|  | C# | C# Unity | C++ | C++ Unreal | Go |  |  |   
-2025-04-24 | [1.11.535](https://github.com/aws/aws-sdk-cpp/releases/tag/1.11.535) or later | 5.2.1 (.NET 8) | 5.2.0 | 5.2.0 | 5.2.0 | 5.2.0 | 2.0.0 | 3.0.1 | 1.2.0  
+|  | C# | Unity (C#) | C++ | Unreal (C++) | Go |  |  |   
+2025-05-29 | [1.11.535](https://github.com/aws/aws-sdk-cpp/releases/tag/1.11.535) or later | 5.3.0 | 5.3.0 | 5.3.0 | 5.3.0 | 5.3.0 | 3.0.0 | 3.1.0 | 1.2.0  
@@ -28,0 +29 @@ Service release | AWS SDK | Server SDK | Plugin for Unreal | Plugin for Unity |
+2025-04-24 | [1.11.535](https://github.com/aws/aws-sdk-cpp/releases/tag/1.11.535) or later | 5.2.1 (.NET 8) | 5.2.0 | 5.2.0 | 5.2.0 | 5.2.0 | 2.0.0 | 3.0.1 | 1.2.0  
@@ -91,0 +93,65 @@ The following release notes are in chronological order, with the latest updates
+**Updated SDK versions:**
+
+  * [C++ server SDK](https://github.com/amazon-gamelift/amazon-gamelift-servers-cpp-server-sdk), version 5.3.0
+
+  * [C# server SDK](https://github.com/amazon-gamelift/amazon-gamelift-servers-csharp-server-sdk), version 5.3.0
+
+  * [Go server SDK](https://github.com/amazon-gamelift/amazon-gamelift-servers-go-server-sdk), version 5.3.0
+
+  * [Server SDK for Unreal](https://github.com/amazon-gamelift/amazon-gamelift-plugin-unreal), version 5.3.0
+
+  * [Server SDK for Unity](https://github.com/amazon-gamelift/amazon-gamelift-plugin-unity), version 5.3.0
+
+
+
+
+**Updated plugin versions:**
+
+  * [Plugin for Unreal](https://github.com/amazon-gamelift/amazon-gamelift-plugin-unreal), version 3.0.0
+
+  * [Plugin for Unity](https://github.com/amazon-gamelift/amazon-gamelift-plugin-unity), version 3.1.0
+
+
+
+
+New versions of the server SDK for C++, C#, Go, Unreal and Unity, as well as new plugin versions for Unreal Engine and Unity, are now open source. They are all available in the [Amazon GameLift Servers GitHub organization](https://github.com/amazon-gamelift). For detailed update information, see the release notes and readmes in each repository.
+
+**Key server SDK updates:**
+
+  * Improved client-side validation and error responses in all server SDKs.
+
+  * The [OnProcessTerminate](./integration-server-sdk5-cpp-datatypes.html#integration-server-sdk5-cpp-dataypes-process) callback function now has default logic to end the game server process.
+
+  * The function [InitSDK()](./integration-server-sdk5-cpp-actions.html#integration-server-sdk5-cpp-initsdk) now uses an idempotency token to support multiple retries.
+
+  * The [OnUpdateGameSession](./integration-server-sdk5-cpp-datatypes.html#integration-server-sdk5-cpp-dataypes-process) callback can now pass data for autoBackfillMode.
+
+
+
+
+**Key plugin updates:**
+
+  * The plugin for Unreal Engine now has a more streamlined install and setup process, with more automation and fewer prerequisites (CMake, OpenSSL, and the Unreal cross-compile tool chain). 
+
+  * The plugin for Unreal Engine has improved UI experience for the Managed EC2 workflow, including support for spaces in the game client and server build paths. In addition, you can now add command-line arguments when launching a game client from the Editor.
+
+  * The plugin for Unreal Engine now supports ARM server builds in UE5.
+
+
+
+
+**Learn more:**
+
+  * [Amazon GameLift Servers plugin for Unreal Engine](./unreal-plugin.html), _Amazon GameLift Servers Developer Guide_
+
+  * [Amazon GameLift Servers plugin for Unity (server SDK 5.x)](./unity-plug-in.html), _Amazon GameLift Servers Developer Guide_
+
+  * [Server SDK 5.x for Amazon GameLift Servers](./reference-serversdk.html), _Amazon GameLift Servers Developer Guide_
+
+  * [Integrate Amazon GameLift Servers into an Unreal Engine project](./integration-engines-setup-unreal.html), _Amazon GameLift Servers Developer Guide_
+
+  * [Integrate Amazon GameLift Servers into a Unity project](./integration-engines-unity-using.html), _Amazon GameLift Servers Developer Guide_
+
+
+
+