Download Mozilla Thunderbird 3.1 alpha 1

The Mozilla Foundation has released an early development version of Thunderbird 3.1. Mozilla Thunderbird is an open source mail and newsgroup client with features such as support for multiple mail and news accounts, a junk mail filter, a spell checker and a customizable appearance. Version 3.1, which for the time being is still codenamed Lanikai, includes improved support for IMAP and various improvements have been made to the smart folders, filters and attachment handling. Below is the full changelog for this release:

New in Lanikai Alpha 1:

• Several improvements to IMAP.
• Several fixes for Smart Folders, message filters, and attachment handling.
• Several design improvements and corrections to the interface.
• Download Manager is now accessible as a menu item (Tools > Saved Files).
• Stability and memory improvements.

For a more detailed list of bug fixes, see the the full bug list.