I just now installed Emacs 22 in my new laptop. There are many new cool features I am excited about.
Emacs 22 is still under development, so I expected a few stability issues. But I’ve been running it continuously over the weekend with a few dozen buffers and so far it has not crashed on me.
I’m yet to try my 2000 line-long .emacs (and a ton of elisp libraries it is dependent on) on Emacs 22. Hope all goes well.
Update: Almost everything worked out of the box except JDEE. Problem solved by upgrading to the latest JDEE version.