just downloaded the new beta for 12.1.
the old files had to be updated to work obviously,
and this isn't saying some folks won't encounter problems,
but I think this one may be the best yet.
I wasn't able to open a helper program, called "kipeecraft",
for an online game I play called RYZOM, with the last update.
For me at least, the last update, caused more problems than it solved,
the programs would immediately crash upon opening, or get stuck in an infinite loop and never open at all.
I became discouraged with X-over, and was considering leaving all together.
HOWEVER, this new update, at least right now, seems to have addressed the issues created,
and the program called "Kipeecraft" seems to work as smooth, as it would on windows
...good job y'all.