Version 52.5.2, first offered to Release channel users on December 22, 2017
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.
• Window: Windows XP, Windows Server 2003 or later
• Mac: Mac OS X 10.9 or later
• Linux: GTK+ 3.4 or higher
Please refer to Release Notes for version 52.0 to see the list of improvements and fixed issues.