What’s New
• Added 'Archive' action to mail notifications
• Composer now shows a warning if user's configured OpenPGP key expires soon
What’s Fixed
• Thunderbird could crash when parsing message state
• The English string for the Angry emoji was incorrectly named as the Yell emoji
• Incorrect roaming data directory caused regression on Windows and macOS
• Message archive folder creation could silently stop during async folder creation
• Folder compaction could fail to complete due to folder write errors
• Status bar showed previously detached attachment when hovering over a new one
• URLs for hovered links in status bar could be immediately overwritten
• 'Search Messages...' dialog could not be opened outside the email tab
• Creating an event or task from mail failed if the mail was opened in a tab
• NNTP message pane did not show network error page when network was lost
• Delete button could remove attachment instead of message
• Folders sorted incorrectly when manually ordering them
• New folders were not added alphabetically if folders manually reordered beforehand
• 'Any Number' was unavailable in address book search with 'Match all of the following'
• Contact was not found in Advanced Address Book Search if phone number had a period
• Thunderbird could crash on startup for POP3
• 'news:' URIs without specific server had incorrect format displayed in status bar
• Enterprise policy use was not indicated in about:preferences with a link to about:policies
• Visual and UX improvements
• Security fixes