Each version of this integration matches a specific build of Unreal Engine 4. Here is what has changed in the 2019.2.13.7577.2037 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.

For earlier versions, please refer to Previous Release Notes.

• New Features
• API Changes
• Behavior Changes
• Bug Fixes
• Fixes for Community-Reported Bugs

New Features

• WG-52794 Added early access compatibility for Unreal Engine 5.
• WG-53713 Unreal IO Store packaging option is now supported.
• WG-55316 Added Unreal Engine UE4.27 support.

API Changes

• WG-55748 Fixed: Exposed AK::SoundEngine::ResetRTPCValue() to Unreal static functions, allowing to reset the value of a Game Parameter to its default.
• WG-56084 Updated AkUtilities.GetWwiseSoundBankDestinationFolder function signature.

Behavior Changes

• WG-55592 Added call to StopAll when tearing down the SoundEngine.

Bug Fixes

• WG-48540 Fixed: WAAPI Picker subscriptions are not refreshed after closing/reopening the Picker or toggling WAAPI functionality.
• WG-52933 Fixed: Possible crash when replacing renamed Wwise UAssets with Automatic Asset Synchronization turned off.
• WG-54273 Fixed: External Source file name is cleared in memory before Event is posted when using async PostEvent calls with External Sources.
• WG-55097 Fixed: Migration to Event-Based Packaging by making sure the InitBank asset is moved to the appropriate folder.
• WG-55318 Fixed: Possible crash caused by WAAPI Picker while packaging build.
• WG-55460 Fixed: Possible crash caused by callbacks interacting with garbage-collected latent actions after they have been destroyed.
• WG-55591 Fixed: Unloading a Switch Value asset doesn't unload the associated media.
• WG-55891 Fixed: Inconsistent behavior when renaming Wwise assets with Automatic Asset Synchronization disabled.
• WG-55939 Fixed: Crash in WAAPI Picker selection synchronization while profiling during PIE.

Fixes for Community-Reported Bugs

• WG-51494 Fixed: Possible crash if AutoSaves are triggered during Sound Data generation. AutoSave is now toggled off during the generation process.
• WG-54995 Fixed: FAkMixerPlatform::GetOutputDeviceInfo does not properly initialize the requested channel information.
• WG-55006 Fixed: Crash when FWaitEndOfEventAction latent actions would still be called after they were destroyed by unloading a level.
  
• WG-55081 Fixed: Wwise UAsset Short IDs cleared by "Clear data in assets" are not always regenerated for State values. Incorrect Short IDs are now reported in the Unreal Log as a warning.
• WG-55107 Fixed: Returned Playing Id not properly set in AkComponent's PostAkEventAndWaitForEnd Blueprint function and latent action not created and Event not posted in AkComponent's PostAkEventAndWaitForEndAsync Blueprint function.
• WG-55548 Fixed: Collision geometry from AkGeometryComponent arranged incorrectly.
• WG-55881 Fixed: Capitalisation typos in includes prevent building the integration on Linux.
• WG-55966 Fixed: Crash caused by convolution reverb media being freed too early during unloading.