Emacs 22.3 was released on 5 September 2008.
You may know that Romain Francoise maintains a repository with emacs-snapshot packages for Debian updated weekly. Well, what about Ubuntu users? Since earlier this summer-ish, the ubuntu-elisp PPA has also been receiving emacs-snapshot packages regularly! Great news for those of us who always want to try out the features that the awesome hackers on emacs-devel are writing about.