The most popular Kodi fork, SPMC, has just been updated to version 16.5.0 with a couple great new Fire TV features. First, Fire TV 2 owners will be happy to learn the app now supports native 4K video playback on their device. The update also adds refresh rate sync, which changes the Fire TV and Fire TV Stick video settings to match the frame rate of the file being played. Both of these features were first introduced on the Fire TV by MrMC, another popular Kodi fork. MrMC being open source was likely a big contributing factor to SPMC adding these features.