Each version of this integration matches a specific build of Unreal Engine 4. Here is what has changed between the 2018.1.6.6858.1242 and the 2018.1.7.6880.1266 release of the integration (in addition to upgrading to the new Unreal build).

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

Unreal Engine 4.19/4.20/4.21/4.22 - Wwise 2018.1.7.6880.1266

• WG-41693 Added support for Unreal Engine 4.22.
• WG-42262 Ensured occlusion Raycasts ignore PlayerController.
• WG-42728 Fixed: Build issues when plug-in is installed as an engine plug-in.
• WG-42747 Made Spatial Audio options visible in AkComponent properties.