The Tor Browser Bundles and other packages have been updated to OpenSSL 1.0.0f and 0.9.8s.
Over the past few years, Tor has gotten more popular and has had to grow and change to accommodate a highly varied userbase.
We have updated the stable Tor Browser Bundles to Firefox 6.
We've updated the experimental Tor Browser Bundles to Firefox 6 and all users are strongly encouraged to upgrade, as Firefox 6 fixes some serious security issues present in Firefox
The stable Tor Browser Bundle for Windows and the beta Firefox 3.6 Tor Browser Bundles for Linux and OS X have been updated to Firefox 3.6.20.