Kindly posting this announcement for the dev and/or any other respected member of XDA with porting experience. This focuses mainly on T-Mobile users who lost the ability to use WiFi Calling after purchasing this phone. CM 13, when released, will have T-Mobile's WiFi Calling baked in. This is the greatest news since sliced bread. Myself and others have sacrificed the WiFi Calling feature to save money and switch to an unlocked non-Tmobile branded phone without the feature. Since CM 12.1 was ported successfully to the Idol 3 and shown it is capable, hopefully CM 13 will be ported too. Announcement here:
http://www.androidpolice.com/2015/10/31/cyanogenmod-13-based-on-android-6-0-will-include-support-for-t-mobiles-wi-fi-calling/
http://www.androidpolice.com/2015/10/31/cyanogenmod-13-based-on-android-6-0-will-include-support-for-t-mobiles-wi-fi-calling/