Fixed:

• Application could crash when rendering long messages (#11218)
• Application could crash due to memory exhaustion (#11216)

Contributors:

• Thanks to: @coreycb, @dani-zilla, @frabera, @himu-gupta, @jim-daf, @kryoseu, @mohitsatr, @mvanhorn, @numericOverflow, @rafaeltonholo, @shamim-emon, @stephenking314, @TusharBhatia34, @untitaker, @varshilsoni, @wmontwe

New Contributors:

• @mvanhorn made their first contribution in #11003
• @jim-daf made their first contribution in #11030
• @numericOverflow made their first contribution in #11032
• @varshilsoni made their first contribution in #11081
• @untitaker made their first contribution in #10800
• @TusharBhatia34 made their first contribution in #11227

Full Changelog: THUNDERBIRD_20_0...THUNDERBIRD_20_1

Fixed:

• Application could crash when rendering long messages (#11218)
• Application could crash due to memory exhaustion (#11216)

Contributors:

• Thanks to: @coreycb, @dani-zilla, @frabera, @himu-gupta, @jim-daf, @kryoseu, @mohitsatr, @mvanhorn, @numericOverflow, @rafaeltonholo, @shamim-emon, @stephenking314, @TusharBhatia34, @untitaker, @varshilsoni, @wmontwe

New Contributors:

• @mvanhorn made their first contribution in #11003
• @jim-daf made their first contribution in #11030
• @numericOverflow made their first contribution in #11032
• @varshilsoni made their first contribution in #11081
• @untitaker made their first contribution in #10800
• @TusharBhatia34 made their first contribution in #11227

Full Changelog: K9MAIL_20_0...K9MAIL_20_1

Fixed:

• Manage Folders opened the wrong account instead of the selected account (#11128)
• Application crashed when attempting to change account color (#11200)

Contributors:
Thanks to: @coreycb, @dani-zilla, @frabera, @himu-gupta, @mohitsatr, @mvanhorn, @rafaeltonholo, @shamim-emon, @stephenking314, @wmontwe

New Contributors:

• @mvanhorn made their first contribution in #11003

Full Changelog: THUNDERBIRD_21_0b1...THUNDERBIRD_21_0b2

New:

• Enable easily discoverable way to configure and use Thundermail (#11086)

Changed:

• Only show message notification configuration actions above the cutoff (#10301)

Fixed:

• Account drawer stayed open after account switch despite auto-select Inbox setting (#10120)
• Imported settings could incorrectly show 'XX' avatar monogram (#10958)
• Printed emails omitted message headers and used minimal margins (#10567)
• Compose button did not work in tablet split-screen message view (#10753)
• Accented subfolder names sorted to bottom instead of locale order (#10718)
• Disabled font size setting appeared in General Settings search (#10756)
• New mail notifications showed avatars when contact pictures were disabled (#10750)
• Mail opening still used fade-in after animations were disabled (#1903)
• Sidebar account-switching animations were too fast (#10480)

Contributors:
Thanks to: @Alecaddd, @coreycb, @dandarnell, @dani-zilla, @frabera, @harshad1, @jasi381, @jim-daf, @jondaley, @kryoseu, @mohitsatr, @mvanhorn, @numericOverflow, @rafaeltonholo, @saisafe, @shamim-emon, @stephenking314, @untitaker, @varshilsoni, @winne42, @wmontwe

New Contributors:

• @Alecaddd made their first contribution in #10793
• @jondaley made their first contribution in #10862
• @saisafe made their first contribution in #10932
• @kryoseu made their first contribution in #10997
• @jim-daf made their first contribution in #11030
• @numericOverflow made their first contribution in #11032
• @varshilsoni made their first contribution in #11081

Full Changelog: K9MAIL_19_2...K9MAIL_20_0

New:

• Enable easily discoverable way to configure and use Thundermail (#11086)

Changed:

• Only show message notification configuration actions above the cutoff (#10301)

Fixed:

• Account drawer stayed open after account switch despite auto-select Inbox setting (#10120)
• Imported settings could incorrectly show 'XX' avatar monogram (#10958)
• Printed emails omitted message headers and used minimal margins (#10567)
• Compose button did not work in tablet split-screen message view (#10753)
• Accented subfolder names sorted to bottom instead of locale order (#10718)
• Disabled font size setting appeared in General Settings search (#10756)
• New mail notifications showed avatars when contact pictures were disabled (#10750)
• Mail opening still used fade-in after animations were disabled (#1903)
• Sidebar account-switching animations were too fast (#10480)

Contributors:
Thanks to: @Alecaddd, @coreycb, @dandarnell, @dani-zilla, @frabera, @harshad1, @jasi381, @jim-daf, @jondaley, @kryoseu, @mohitsatr, @mvanhorn, @numericOverflow, @rafaeltonholo, @saisafe, @shamim-emon, @stephenking314, @untitaker, @varshilsoni, @winne42, @wmontwe

New Contributors:

• @Alecaddd made their first contribution in #10793
• @jondaley made their first contribution in #10862
• @saisafe made their first contribution in #10932
• @kryoseu made their first contribution in #10997
• @jim-daf made their first contribution in #11030
• @numericOverflow made their first contribution in #11032
• @varshilsoni made their first contribution in #11081

Full Changelog: THUNDERBIRD_19_2...THUNDERBIRD_20_0

Changed:

• Animation setting now allows On, Off, and System Default options (#6027)
• Modernized 'Fetching mail' account settings screen (#11040)

Fixed:

• Modernized 'Composition defaults' screen (#10724)
• Application could crash due to memory exhaustion (#11153)
• Application could crash when rendering long messages (#11148)
• Inline images were shown as attachments instead of displaying in message (#10889)
• Server search results could disappear after loading (#9142)
• Links failed when trailing punctuation was incorrectly included in URLs (#11060)
• Android widget text scaled too large when system font size was increased (#7790)
• Cancelling the Thundermail OAuth process incorrectly redirects users to the "Redirecting to Thundermail" screen (#11043)
• Custom swipe actions were not restored from exported settings backups (#10621)

Contributors:
Thanks to: @coreycb, @dani-zilla, @frabera, @jim-daf, @kryoseu, @mohitsatr, @mvanhorn, @numericOverflow, @rafaeltonholo, @shamim-emon, @stephenking314, @untitaker, @varshilsoni, @wmontwe

New Contributors:

• @jim-daf made their first contribution in #11030
• @numericOverflow made their first contribution in #11032
• @varshilsoni made their first contribution in #11081
• @untitaker made their first contribution in #10800

Full Changelog: THUNDERBIRD_20_0b2...THUNDERBIRD_21_0b1

Fixed:

• K-9 Mail crashed when scanning Thundermail QR code (#11097)

Contributors:

• Thanks to: @rafaeltonholo

Full Changelog: THUNDERBIRD_19_1...THUNDERBIRD_19_2

Fixed:

• K-9 Mail crashed when scanning Thundermail QR code (#11097)

Contributors:

• Thanks to: @rafaeltonholo

Full Changelog: K9MAIL_19_1...K9MAIL_19_2

New:

• Enable easily discoverable way to configure and use Thundermail (#11086)

Fixed:

• K-9 Mail crashed when scanning Thundermail QR code (#11097)

Contributors:

• Thanks to: @rafaeltonholo

Full Changelog: THUNDERBIRD_20_0b1...THUNDERBIRD_20_0b2

New:

• Enable easily discoverable way to configure and use Thundermail (#11086)

Contributors:

• Thanks to: @rafaeltonholo

Full Changelog: THUNDERBIRD_19_0...THUNDERBIRD_19_1