Mesen v2.1.0 is released. Mesen is a multi-system emulator (NES, SNES, Game Boy, Game Boy Advance, PC Engine, SMS/Game Gear, WonderSwan) for Windows, Linux and macOS.

Mesen Changelog:
A lot has been improved or added since the first release of 2.0.0 over 2 years ago.
This is a short summary of the most notable changes.
Support for more consoles:
Game Boy Advance
Game Gear
Master System (including support for the SG-1000 and ColecoVision)
Wonder Swan and Wonder Swan Color
Accuracy improvements for all consoles
Various bug fixes
macOS support
New features and improvements for the debugger:
Forbid breakpoints
Step back single scanline/frame
Undo ROM/RAM changes
Integration with more compilers/assemblers (HuCC, PCEAS, SDCC, devkitARM)
Console-specific improvements/fixes:
NES: Support for EPSM audio and the Rainbow mapper
SNES: Fixed freezes in Battle Grand Prix and Kishin Douji Zenki
SNES: Added support for ST018 (Hayazashi Nidan Morita Shogi 2)
PCE: Improved VRAM read/write timings - fixes issues in Wonder Momo.
PCE: Improved CD-ROM load timings - fixes issues in Brandish and Sherlock Holmes.
PCE: Fixed Arcade Card emulation bug - fixes invisible characters in Garou Densetsu Special
GB: Improved audio emulation - fixes issues in Alone in the Dark, Warlocked, and more.
GB: Fixed graphical issues in Densha De Go 2, Star Trek 25th anniversary and Pocket Music
GB: Fixed crash in Pinball Deluxe.

Download: Mesen v2.1.0
Source:Here