Each version of this integration matches a specific build of Unreal Engine. Here is what has changed in the 2023.1.3.8471.2970 release of the integration (in addition to upgrading to the new Unreal build).

Note: This integration does not support experimental Unreal Engine features.

Note: This integration was compiled against Unreal Engine version 5.2, 5.3 and 5.4 Preview. It was tested against Unreal Engine 5.3 and 5.4 Preview. Unreal Engine 5.4 Preview support is ready for development. It was tested both in editor and in game for Windows and Mac. It was not tested on consoles or mobile devices. We do not recommend using a preview version of Unreal Engine in production.

For earlier versions, please refer to Previous Release Notes.

• New Features
• Performance Changes
• Bug Fixes
• Fixes for Community-Reported Bugs
• Documentation Improvements

New Features

• WG-66631 The Integration now supports Wwise SoundEngine in Profile and Debug configurations on Linux, in addition to the Release configuration. It is also possible to connect to Debug and Profile configurations with the Profiler.
• WG-69218 Added support for SoundEngine, FileHandler, and ResourceLoader Low Level Memory (LLM) tracking through Audio/Wwise group.
• WG-69920 Added overridable move operation to Reconcile. This operation does nothing without overriding it.
• WG-70866 Added the nullSoundEngineAsError option to UnrealBuildTool invocation. When the option is used, the build process fails when using the null SoundEngine.
• WG-70933 Unreal Engine 5.4 Preview is now supported for development purposes.

Performance Changes

• WG-70704 Improved performance of WwiseFileHandler's getters.
• WG-71109 Regrouped SetMedia and TryUnsetMedia calls to reduce asset locking overhead.

Bug Fixes

• WG-69799 Fixed: Missing error message when trying to load a geometry that does not allow CPU access.
• WG-69978 Fixed: (Spatial Audio) Enabling a Reverb Zone that would result in an invalid state because of a connected Portal causes the state of the Portal in Wwise and Unreal to be out of sync.
• WG-70538 Fixed: Refreshing Wwise Browser causes it to refresh twice.
• WG-70911 Fixed: Orphaned Assets appear as "UAsset Needs Update" in the Wwise Browser.
• WG-71082 Fixed: Wwise Browser crash when the Root Output Path is invalid.
• WG-71130 Fixed: Some properties do not update when editing the parent Room of Reverb Zone Room components that are part of Actor Blueprints.
• WG-71248 Fixed: Auto Assign Aux Bus not working properly for some Ak late reverb components attached to Blueprint actors.

Fixes for Community-Reported Bugs

• WG-67549 Fixed: InitBank uasset is not created when changing the Root Output Path to a valid one.
• WG-67837 Fixed: Crash in single threaded mode.
• WG-69563 Fixed: Reconcile fails to update newly migrated assets.
• WG-69771 Fixed: When working with multiple clients, possible crash after entering and exiting Play mode due to default listeners not being cleaned up properly.
• WG-69842 Fixed: Wwise Browser's search bar collapses trees.
• WG-69876 Fixed: Crash in packaged games when performing multi-threaded operations for memory-mapped files.
• WG-70234 Fixed: FillSamplesBuffer called after stopping the AudioInput Component.
• WG-70296 Fixed: ExecutionQueue error after calling StopProfilerCapture.
• WG-70392 Fixed: Switch values with the same name can be associated with the wrong Switch Group.
• WG-70534 Fixed: Plug-ins are not registered on iOS, tvOS, and Switch.
• WG-70625 Fixed: FWwiseSimpleExtSrcManager::SetExternalSourceMedia() causes crashes in DecrementCount during asynchronous unloading operation.
• WG-70658 Fixed: When searching in the Wwise Browser, up-to-date events are flagged as "UAsset Needs Update".
• WG-70904 Fixed: Compilation errors caused by bad string formats in logs.
• WG-70991 Fixed: Wwise Bank and Media operations lock all available threads.
• WG-70994 Fixed: Possible crash of Unreal Editor when compiling a Blueprint with an AkRoom component attached.

Documentation Improvements

• WG-70143 Updated Reverb Zone documentation.