If you're an HTC One A9 owner as well as a fan of CyanogenMod builds, you'll be glad to know that Cyanogen has released the Android 6.0-based CM 13 nightly build for the device, although only for the GSM model. Agreed, the One A9 already comes with Android 6.0 out-of-the-box, but being an HTC phone, it runs the company's Sense UI on top. Flashing CM-13 build on the device will allow you to get close to stock Marshmallow experience. In addition to the One A9, the CM-13 nightly build is now also available for the first generation Motorola Moto E smartphone. You can download the builds by heading to the Source links below, but before you do that keep in mind that nightlies aren't usually stable and installation of a custom ROM also voids your handset's warranty. Source (One A9) | Source (Moto...
Source: http://www.gsmarena.com/marshmallowbased_cyanogenmod_13_nightly_builds_now_available_for_htc_one_a9_and_moto_e_1st_gen-news-16009.php
