Current builds (starting with r217) are for Lollipop 5.1 only.
Builds (starting with r214 up to r216) are Android 5.0 Lollipop only.
KitKat is dead and the last stable release was r213, which you're free to use if you're still on 4.4....
I hate big OPs.
Works on all roms. r390 and newer versions are ONLY for 4.3 or newer.
1. My device rebooted or crashed, how can I help?
A: Get me /proc/last_kmsg on pastie.org.
2. Battery sucks, my device is not entering deep sleep...
It should work on any rom by following this logic:
Builds (starting with r65) are Android 5.0 Lollipop only.
Builds (starting with r72) are Android 5.1 Lollipop only.
Builds (starting with r76) are Android 6.0 Marshma...
r81 is the last release for Android 5.0.
r82 or newer is only for Android 5.1 - don't flash them on older Android versions.
Builds until r44 are for CyanogenOS 5.1.1 YOG7DASK1 only.
Builds starting with r45 are for Android Marshmallow 6.0.1 CyanogenOS. Currently r45 is the last release compatible with COS 6.0.1.
Builds starting with r46 are...