MasterGear v4.8 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 v4.8 for Windows Changelog:
* Added functionality for injecting ASCII text via SC-3000 keyboard.
* Added "Hardware | Paste Clipboard" option to MG-Windows.
* During paste, replacing backslash with slash, underscore with minus.
* Swapped YEN and AT keys.

Download: MasterGear v4.8 for Windows
Source: Here