Each version of this integration matches a specific build of Unreal Engine 4. Here is what has changed in the 2021.1.7.7796.2228 release of the integration (in addition to upgrading to the new Unreal build).

Note: This integration does not support experimental Unreal Engine 4 features.

Note: This integration compiles against Unreal Engine versions 4.23 and up, but was only tested against Unreal Engine 4.26.

Platform-specific information can be found here:

For earlier versions, please refer to Previous Release Notes.

• Behavior Changes
• Fixes for Community-Reported Bugs

Behavior Changes

• WG-57995 Improved asset loading performance during Sound Data generation.

Fixes for Community-Reported Bugs

• WG-57987 Fixed: Crash due to loading assets while not on the game thread when generating Sound Data in Legacy (non-EBP) mode.
• WG-58133 Fixed: Crash when Wwise assets are loaded before the AkAudio module.
• WG-58160 Fixed: Crash when sending geometry from AkSurfaceReflectorSetComponent.
• WG-58882 Fixed: Linux compilation error in Unreal 5.