Thunderbird Release Notes

Version 38.5.0, first offered to channel users on December 23, 2015

Check out "What’s New" and "Known Issues" for this version of Thunderbird below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla. If interested, please see the complete list of changes in this release.

What’s New

  • fixed

    In the address book manager, make the contacts sidebar remember the last selected address book (1142705)

  • fixed

    Various security fixes

  • fixed

    Prepare to use SHA-256 signing certificate for Windows builds, to meet new signing requirement (1079858)