New in BGB 1.5.9 (2021-04-23)

Added Xinput support, fixes: gamepad stops working if bgb loses focus in windows 10. Re-run the configure wizard to utilize Xinput.
Improved sound accuracy. "voice" sound works in perfect dark, donkey kong country, medarot 5 and others. added PCM registers.
Improved HuC3 support (robopon sun, pocket family)
Improvement to speedrun mode
Added support for BESS, one can now interchange save states between bgb and other supporting emulators such as Sameboy
Added support for the homebrew TPP1 mapper
Many accuracy improvements
Fixed many bugs