Thunderbird is due to be released later today. For versions for other systems and languages go to

You can also get it by using the built-in update system.

Thunderbird Release Notes

<big>Important note for Logitech webcam owners</big>

If you own a Logitech webcam you should close the Logitech program before installing the update. The Logitech software locks a file in the Thunderbird installation directory (mozMapi32.dll) preventing it from being updated which causes the Thunderbird installation to fail.