Release Notes

'Recent Destinations' in General Settings now supports alphabetical sorting

Added support for generating Unobtrusive Signatures (OpenPGP)

Message body search enabled for OpenPGP and S/MIME encrypted messages

Account hub is opened on the first run of Thunderbird

Address book cards can be copied to the clipboard as vCard

Custom Accent Color can be chosen in Appearance Settings

Calendar month/multiweek views are now scrollable with touch screen

PDF pages can be reorganized directly in the PDF viewer

Flatpak beta app ID changed from org.mozilla.Thunderbird to org.mozilla.thunderbird

Unknown command-line arguments passed to Thunderbird did not print warning

Thunderbird could crash when creating a folder

Saved email filenames were not not always cross-platform safe

Compose progress dialog used unlocalised folder name

Clicking on a folder in the folder pane did not always open folder

Could not scroll to message bottom or view all attachments in some cases

Accounts could be listed twice after adding new account

Account Hub manual configuration was missing OAuth2 option

Microsoft Store installs did not open when clicking 'news://' link or .eml file

Folder states were not exposed to screen readers in saved search properties

Mailbox name was not announced and message count was incorrect for screen readers

POP3 could stop downloading mail until restart

Exchange servers/clients caused memory leaks by holding mutual references

Authentication could fail for some exchange accounts

'Move to New Window' option for the calendar was disabled

Calendar view had date and time axes swapped

Visual and UX improvements

Security fixes