Thunderbird 0.4 was released on the 5th of December. If your using a previous version you'll definitely want to upgrade. If your not using Thunderbird yet, you should be. 8o)
If your upgrading, check out this page after you download 0.4.
Posted by TheIdeaMan at December 9, 2003 08:46 AM | TrackBackPlease note: Comments will not appear immediately. Your comment will appear upon approval by the blog's editor. We had to implement this to decrease the amount of spam that our site receives. Please forgive the inconvenience. We are looking into other, friendlier options.