"Thunderbird 2 is now available for download on Windows, Mac and Linux in over 35 languages. Thunderbird 2 offers easy ways to manage and organize your email with message tags, advanced folder views, message history navigation, find as you type, and improved new mail alert notifications. Thunderbird 2 also includes a refreshed user interface and support for Microsoft Vista.
"The Thunderbird 2 features page has more details about the new features in Thunderbird 2. The Thunderbird 2 Release Notes have more specific information. The Rumbling Edge has a list of notable bug fixes in Thunderbird 2."
"We also want to extend a huge thanks to everyone in the MozillaZine community for their help and support with Thunderbird 2 over the past year. We wouldn't have been able to release Thunderbird without you. A special thanks to the awesome forum moderators who spend so much time answering questions and to the folks who help organize and participate in our weekly test threads here at MozillaZine."
Important note: "Thunderbird 1.5.0.x users will be offered Thunderbird 2 via software update at a later date. Those wishing to upgrade now are therefore advised to download and install Thunderbird 2 manually.""