Notable changes since 1.22.1:

Apple2: Added basic support for WOZ 2.0 floppy disk images.
Lynx: Fixed a potential security vulnerability.
PCE: Fixed an an old regression(from around 0.9.0) that degraded DDA sample playback when playing a HES file.
PS1: Fixed a regression introduced in 1.22.0-UNSTABLE that broke a few PS1 games(e.g. "SimCity 2000" and "Rise 2").
SS: Added the European release of "Theme Park" to the internal database of games to use the data cache read bypass kludge with, to fix infinite boredom during the intro FMV.