via http://emu-russia.net/en/

Sega Master System/Game Gear emulator for Android has been updated. Changes:
- Gameplay recording now always enabled. Select "Replay" at any time!
- Added new "contour" joystick shape (see "Virtual Joystick Shape" setting).
- Fixed stutter during NetPlay connection process (NetPlay still slow though).
- Made replay play all records to the current recording position.
- Made recording pause when replay is on.
- Fixed many corner cases in record/replay.
News source: https://play.google.com