Thunderbird 1.5 Released

What’s new in this version?

• Automated update to streamline product upgrades. Notification of an update is more prominent,
  and updates to Thunderbird may now be half a megabyte or smaller. Updating extensions has also improved.
• Sort address autocomplete results by how often you send e-mail to each recipient.
• Spell check as you type.
• Saved Search Folders can now search across multiple accounts.
• Built in phishing detector to help protect users against email scams.
• Podcasting and other RSS Improvements.
• Deleting attachments from messages.
• Integration with server side spam filtering.
• Reply and forward actions for message filters.
• Kerberos Authentication.
• Auto save as draft for mail composition.
• Message aging.
• Filters for Global Inbox.
• Improvements to product usability including redesigned options interface, and SMTP server management.
• Many security enhancements.

I hope to see some of my favorite extensions finally updated to work in the new version, such as the Calender. Grab the latest version right here.