It's been long promised, but there it is now. Special thanks to Ingo who
found and fixed a nasty-looking regression that turned out to not be a
regression at all, but an old bug that just had not been triggering as
reliably before.

That said, that was just the last particular regression fix I was holding
things up for, and it's not like there weren't a lot of other fixes too,
they just didn't end up being the final things that triggered my
particular worries.

The full changelog from 2.6.24 is 7.5M, with a 12MB compressed patch. Tons
and tons has changed, but if you've been following the -rc releases,
you'll already know about the big things. The changes from the last rc
(-rc9) are fairly small and mostly pretty trivial, and the shortlog is
appended.