Each version of this integration matches a specific build of Unreal Engine 4. Here is what has changed in the Unreal Engine 4.7 release of the integration (in addition to upgrading to the new Unreal build).

Unreal Engine 4.7 - Wwise v2014.1.3

• Added support for the Android platform.
• Now including a new demonstration game, based on Epic's First Person Template. For more information, see Sample Game.
• All Wwise Integration settings now have their page in the Unreal Project Settings window. No need to manually edit INI files anymore!
• UI-157 Fixed: When generating the SoundBanks, add the Max Attenuation information to AkEvents. It can be retrieved via Blueprints.
• UI-187 Fixed: Allow the preview of AkEvents from the Content Browser by pressing the space bar.
• UI-188 Fixed: When an AkAmbientSound is about to be destroyed, cancel its event callback to avoid using a destroyed object in the callback.
• UI-189 Fixed: Added an attenuation scaling factor to AkComponent, allowing to make each actor's attenuation radius unique.
• UI-190 Fixed: Added a new Blueprint node that allows setting the exact list of loaded SoundBanks. For more information, see Load Banks
• UI-193 Fixed: Get the UAkAudioEventFactory directly when creating UAkAudioEvents by Drag & Drop.
• UI-194 Fixed: Optimized the finding of AkReverbVolumes at a location.
• UI-195 Fixed: Added blueprint_actor_posteventbyname, features_blueprintcsoundbanks_loadbyname, and Unload Bank Blueprint nodes.
• UI-196 Fixed: Added a configuration parameter for the maximum number of concurrent Reverb Volumes applied on a sound.
• UI-201 Fixed: Added an UAkAudioEvent to AkComponent, to bring it in sync with Unreal's AudioComponent. An AkComponent can by added in a Blueprint via drag & drop of a UAkAudioEvent. An actor with an attached AkComponent will also show its attenuation radius in the Editor.
• UI-204 Fixed: Added code to unload auto-loaded SoundBanks.
• UI-205 Fixed: Don't post events in a world that does not allow audio playback.
• UI-208 Fixed: Fixed a potential crash when generating SoundBanks.