Few highlights of the new version:
- Retro gaming support with lot's of controllers already supported!
- Gaming emulators or controller support can be installed as add-ons.
- Ability to move the app to SD card.
- Core changes to the codebase to support " release early, release often" model which means more frequent updates.
Full changelog here .
Been running it on my Shield TV and Mi Box for about a month now (the release candidates) it's a great update and runs well. For emulation I still recommend RetroArch separately though.