MasterGear v4.3 for Windows is released. MasterGear is a program that emulates 8bit SEGA videogames on your computer. It runs games made for SEGA MasterSystem (Mark3 in Japan) and GameGear, as well as their predecessors: SG1000, SC3000, SF7000, and Mark2. MasterGear will also help hobbyists who still write software for these systems to debug their works without using rare and costly development hardware.

MasterGear v4.3 for Windows Changelog:
- Fixed saved state compatibility between 32bit and 64bit systems.
- Recompiled sources with "-Wall" and fixed warnings.
- Deprecated -DNO_WAVE_INTERPOLATION compilation option.
- Deprecated -DNEW_STATES compilation option.

Download: MasterGear v4.3 for Windows
Source: Here