Link: https://github.com/jsgroth/jgenesis/releases/tag/v0.11.0

"Some of the most notable changes since v0.10:

Game Boy Advance emulation now supported  
32X now supports emulated CPU overclocking  
Slightly improved 32X color accuracy  
Improved 32X PWM audio quality  
Sega CD per-region BIOS configuration  
NES palette customization options  
Game Boy and Game Boy Color now support LCD ghosting emulation via frame blending  
Support for running original Game Boy games in Game Boy Color mode  
Support for turbo/autofire input mappings  
Fixed a ton of bugs for every system, including two Sega CD regressions that affected v0.10  
SDL upgraded from SDL2 to SDL3  

Save states are not compatible with previous versions.

I did not intend for this to come so long after the last release, but there was always just one more thing..."

Full changelog in linked github page.