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

Sega Master System/Game Gear emulator for Android has been updated. Changes:
- Added screen resizing/positioning to the Joystick Editor.
- Added "Input | Ignore Fake KeyUp Events" option to make misbehaving keyboards work.
- Added 18 new games to the Cheatopedia.
- Added backdrop image to the Joystick Editor.
- Fixed joystick resizing/positioning in the Joystick Editor.
- Fixed backdrop image shifting down after rotation.
- Fixed accidental crash when drawing overlay.
- Removed some outdated code that is no longer relevant.
News source: https://play.google.com