Oculus Audio SDK 1.29.0 integration - when ?

Currently even Oculus offers 1.18.0 Audio SDK integration for UE4, while their current native release of Audio SDK is 1.29.0 https://developer.oculus.com/downloads/package/oculus-spatializer-native/

Do you have an ETA for when Audio SDK 1.29.0 is going to be integrated into UE4 (for both PC and mobile VR platforms) ?

Thanks