Now that you've heard the new name for Android M, you're probably all excited to hear about how Amazon plans to deliver a customized version of Android Lollipop to its Fire devices later this year. Yeah, around the time regular Android will be making the leap to Marshmallow. The company released a developer preview of Fire OS 5 back in June for the Fire HD 6 and 7. Now it's releasing a version for Fire TV as well.
With Fire OS 5, Fire TV is making the substantial jump up from OS 3. The upcoming version will bring Android 5.1 along with support for Android TV and the v17 leanback library. Apps that support either of the aforementioned things should work in Amazon Fire TV as-is.