[Osiris]

After releasing the Firefox update to 2.0.0.6 early because of a serious security vulnerability the update for Thunderbird was released on schedule. The automatic update routine is already suggesting to update Thunderbird to its newest version and the website has been updated with the latest information as well.
The same security vulnerabilities that have been fixed in Firefox 2.0.0.6 have also been fixed in Thunderbird which means that you should update immediately to the latest version. As far as I can tell there are no new features in this version, at least all my extensions are still working fine.
The Rumbling Edge lists the following three fixes for Thunderbird 2.0.0.6
Fixed: MFSA 2007-27 - Unescaped URIs passed to external programs (Critical)
Fixed: MFSA 2007-26 - Privilege escalation through chrome-loaded about:blank windows (Moderate)
Fixed: 389106 - firefox may not escape quotes everywhere.