8th September 2016.
https://bitbucket.org/eke/genesis-plus-gx/commits/56f3d64265b33ad654d24f44b76d7b37af525e38
[Core/CD] fixed access to Sub-CPU "read-only" communication registers (fixes Round 5 Boss freeze in Streets of Rage / Sega Classics Arcade Collection)
[Gamecube/Wii] VDP status in 8-bit mode should not be changed when changing region
[Core] When copying backward, use memmove instead of memcpy.
https://bitbucket.org/eke/genesis-plus-gx/commits/56f3d64265b33ad654d24f44b76d7b37af525e38