These Gapps are 100% compatible with CM12, CM12.1 and other Android 5.1, 5.1.1 custom ROMs. It uses “my” special kernel 4.4.20-exton-android-x86_64 with some extra features.
I call my remaster of it AndEX Marshmallow 64bit Live DVD. Marshmallow 6.0.1 is the second latest version of the Android mobile operating system developed by Google.