Each version of this integration matches a specific build of Unreal Engine 4. Here is what has changed between the 2017.1.3.6377.715 and the 2017.1.3.6377.732 release of the integration (in addition to upgrading to the new Unreal build).

Unreal Engine 4.15/4.16/4.17/4.18 - Wwise 2017.1.3.6377.732

• Added support for Unreal 4.18.
• WG-35104 Fixed: Do not create a listener on a dedicated server.
• WG-35272 Fixed: Added support for Android 64-bit builds.
• WG-35286 Fixed: Avoid crash when having a Add Surface Reflector Set Component Blueprint node connected to nothing.