Release Notes

Thunderbird Desktop

Version 38.5.1 | Released January 8, 2016

Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla.

What’s Changed


Use a SHA-256 signing certificate for Windows builds, to meet new signing requirements

Known Issues


Windows XP SP2 will not longer install Thunderbird (workaround: Install Thunderbird 38.5.0 then update)

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