Kodi, perhaps better known by its former name XBMC, is one of the most popular media centers around. It's open source, cross-platform, and is endlessly extendable - what's not to love? Now Kodi 17, codenamed 'Krypton,' is live on the Play Store with thousands of new features and bug fixes.
Probably the most notable change is the new default theme. 'Estuary' (shown above) is the new default skin on most platforms, replacing the years-old 'Confluence' skin. On touch screen devices, there's a slightly-modified version of Estuary called 'Estouchy,' shown below.
Besides the new look, there is a massive number of under-the-hood changes, especially with Kodi's Live TV/PVR and media playback. Kodi's video player core has added support for new codecs, subtitle formats, and add-ons.
Kodi 17 also has some noteworthy Android-only changes. The minimum Android version has been moved from Android 4.2 to 5.0, and if you have a powerful device, 4K decoding and output now works much better. DTS-HD, DTS-X, Dolby TrueHD, and Dolby ATMOS audio pass-through is also now supported.