Changed:

• There are no Thunderbird changes requiring release notes in this release

Contributors:

• Thanks to: @dougsparling

Full Changelog: THUNDERBIRD_26_0b2...THUNDERBIRD_26_0b3

New:

• New funding appeal helps keep Thunderbird alive! (#11526, #11547, #11580, #11588, #11615, #11620, #11677)

Fixed:

• Message composer could crash when rotating the screen or editing a message as new (#11302)
• HTML signature text could disappear after rotating the screen (#11528, #11555)
• Deleted email notifications could reappear or remain in the notification shade (#10936)
• Some HTML drafts hid attachments while editing and could permanently lose them on save (#954)
• Add to contacts crashed the app when no Contacts app was installed (#11548)
• Sending large PGP-encrypted attachments showed no progress during encryption (#5763)
• Account drawer behaved inconsistently when reselecting an account or tapping its icon (#11461)
• Account drawer controls blocked accounts and folders on small displays (#11476)
• Sort menu indicator (bullet point) was duplicated each time the menu was opened (#11274)

Contributors:

• Thanks to: @coreycb, @dani-zilla, @dougsparling, @Friese2001, @itshakemd, @itsSiide, @khaledhaltam, @kryoseu, @PurkkaKoodari, @rafaeltonholo, @schorschii, @shamim-emon, @stephenking314, @taljeon, @wmontwe

New Contributors:

• @taljeon made their first contribution in #11571
• @itshakemd made their first contribution in #11594

Full Changelog: THUNDERBIRD_24_0...THUNDERBIRD_25_0

Fixed:

• Message composer could crash when rotating the screen or editing a message as new (#11302)
• HTML signature text could disappear after rotating the screen (#11528, #11555)
• Deleted email notifications could reappear or remain in the notification shade (#10936)
• Some HTML drafts hid attachments while editing and could permanently lose them on save (#954)
• Add to contacts crashed the app when no Contacts app was installed (#11548)
• Sending large PGP-encrypted attachments showed no progress during encryption (#5763)
• Account drawer behaved inconsistently when reselecting an account or tapping its icon (#11461)
• Account drawer controls blocked accounts and folders on small displays (#11476)
• Sort menu indicator (bullet point) was duplicated each time the menu was opened (#11274)

Contributors:

• Thanks to: @coreycb, @dani-zilla, @dougsparling, @Friese2001, @itshakemd, @itsSiide, @khaledhaltam, @kryoseu, @PurkkaKoodari, @rafaeltonholo, @schorschii, @shamim-emon, @stephenking314, @taljeon, @wmontwe

New Contributors:

• @taljeon made their first contribution in #11571
• @itshakemd made their first contribution in #11594

Full Changelog: K9MAIL_24_0...K9MAIL_25_0

Fixed:

• Thunderbird for Android could crash when opening the message view (#11869)

Contributors:

• Thanks to: @coreycb, @wmontwe

Full Changelog: THUNDERBIRD_26_0b1...THUNDERBIRD_26_0b2

New:

• Remote feature flags can be viewed and managed in General Settings (#11457)

Changed:

• Modernized 'Sending Mail' settings screen (#11041)
• Manage Folders settings moved from account drawer to Account settings under Folders (#11679)
• Folder display, sync, and notification settings are split into separate menus (#11763)

Fixed:

• Donation appeal dialog could display multiple times (#11677)
• Account profile avatars were not imported from K-9 Mail (#10864)

Contributors:

• Thanks to: @coreycb, @dani-zilla, @dougsparling, @itsSiide, @JustNotesa, @rafaeltonholo, @shamim-emon, @stephenking314, @wmontwe

New Contributors:

• @dougsparling made their first contribution in #11847

Full Changelog: THUNDERBIRD_25_0b2...THUNDERBIRD_26_0b1

Changed:

• Remote Feature Flags temporarily disabled to investigate startup freeze on splash screen (#11759)

Fixed:

• Message composer could crash when rotating the screen or editing a message as new (#11302)

Contributors:

• Thanks to: @coreycb, @rafaeltonholo

Full Changelog: THUNDERBIRD_25_0b1...THUNDERBIRD_25_0b2

New:

• Signatures can be formatted as HTML for individual identities (#11405)
• Reply prompts users to choose Reply or Reply All when both are applicable (#7055)

Changed:

• Long account names are resized to fit within two lines in the account drawer (#10229)

Fixed:

• Selected compose text was invisible in light theme due to white highlighting (#10974)
• Status bar icons became unreadable when selecting messages in light theme (#11305)
• Recipient expander would not collapse after editing message subject or body (#11375)
• Thunderbird could crash when adding an attachment to a message using the camera (#11296)
• Save All incorrectly saved each attachment using the content of the last file (#10965)
• HTML signature text could disappear after rotating the screen (#11528)
• Editing as new used the default identity instead of the original one for queued mail (#11348)
• QR code scanner failed to open when no accounts were configured (#11276)
• Unsupported QR codes did not display feedback after scanning (#8520)
• With a hardware keyboard the focus could not leave To, Cc or Bcc (#8231)

Contributors:

• Thanks to: @aindriu80, @AvikMakwana, @chrisdebian, @Coding-Young, @coreycb, @dani-zilla, @danielcoderman, @Fjoerfoks, @Friese2001, @harshasiddartha, @helakostain, @ibrahim-iqbal, @itshakemd, @itsSiide, @joshua-grimmett, @khaledhaltam, @Klofutar, @kryoseu, @Logeshsharma, @Matthaiks, @mohitsatr, @mvanhorn, @oersen, @PurkkaKoodari, @rafaeltonholo, @ramses-70, @rprys, @schorschii, @shamim-emon, @Shaurya2k06, @snowykte0426, @solokot, @stephenking314, @taljeon, @wmontwe

New Contributors:

• @mvanhorn made their first contribution in #11248
• @AvikMakwana made their first contribution in #11301
• @ibrahim-iqbal made their first contribution in #11309
• @ramses-70 made their first contribution in #11389
• @harshasiddartha made their first contribution in #11371
• @chrisdebian made their first contribution in #11406
• @danielcoderman made their first contribution in #11432
• @Logeshsharma made their first contribution in #11460
• @taljeon made their first contribution in #11571
• @itshakemd made their first contribution in #11594

Full Changelog: THUNDERBIRD_23_1...THUNDERBIRD_24_0

New:

• Signatures can be formatted as HTML for individual identities (#11405)
• Reply prompts users to choose Reply or Reply All when both are applicable (#7055)

Changed:

• Long account names are resized to fit within two lines in the account drawer (#10229)

Fixed:

• Selected compose text was invisible in light theme due to white highlighting (#10974)
• Status bar icons became unreadable when selecting messages in light theme (#11305)
• Recipient expander would not collapse after editing message subject or body (#11375)
• Thunderbird could crash when adding an attachment to a message using the camera (#11296)
• Save All incorrectly saved each attachment using the content of the last file (#10965)
• HTML signature text could disappear after rotating the screen (#11528)
• Editing as new used the default identity instead of the original one for queued mail (#11348)
• QR code scanner failed to open when no accounts were configured (#11276)
• Unsupported QR codes did not display feedback after scanning (#8520)
• With a hardware keyboard the focus could not leave To, Cc or Bcc (#8231)

Contributors:

• Thanks to: @aindriu80, @AvikMakwana, @chrisdebian, @Coding-Young, @coreycb, @dani-zilla, @danielcoderman, @Fjoerfoks, @Friese2001, @harshasiddartha, @helakostain, @ibrahim-iqbal, @itshakemd, @itsSiide, @joshua-grimmett, @khaledhaltam, @Klofutar, @kryoseu, @Logeshsharma, @Matthaiks, @mohitsatr, @mvanhorn, @oersen, @PurkkaKoodari, @rafaeltonholo, @ramses-70, @rprys, @schorschii, @shamim-emon, @Shaurya2k06, @snowykte0426, @solokot, @stephenking314, @taljeon, @wmontwe

New Contributors:

• @mvanhorn made their first contribution in #11248
• @AvikMakwana made their first contribution in #11301
• @ibrahim-iqbal made their first contribution in #11309
• @ramses-70 made their first contribution in #11389
• @harshasiddartha made their first contribution in #11371
• @chrisdebian made their first contribution in #11406
• @danielcoderman made their first contribution in #11432
• @Logeshsharma made their first contribution in #11460
• @taljeon made their first contribution in #11571
• @itshakemd made their first contribution in #11594

Full Changelog: K9MAIL_23_1...K9MAIL_24_0

New:

• New funding appeal helps keep Thunderbird alive! (#11526, #11547, #11580, #11588, #11615, #11620)
• Feature flags can be updated remotely without requiring an app update (#11456)

Fixed:

• Deleted email notifications could reappear or remain in the notification shade (#10936)
• HTML signature text could disappear after rotating the screen (#11528, #11555)
• Some HTML drafts hid attachments while editing and could permanently lose them on save (#954)
• Add to contacts crashed the app when no Contacts app was installed (#11548)
• Sending large PGP-encrypted attachments showed no progress during encryption (#5763)
• Account drawer behaved inconsistently when reselecting an account or tapping its icon (#11461)
• Account drawer controls blocked accounts and folders on small displays (#11476)
• Sort menu indicator (bullet point) was duplicated each time the menu was opened (#11274)

Contributors:

• Thanks to: @coreycb, @dani-zilla, @Friese2001, @itshakemd, @itsSiide, @khaledhaltam, @kryoseu, @PurkkaKoodari, @rafaeltonholo, @schorschii, @shamim-emon, @stephenking314, @taljeon, @wmontwe

New Contributors:

• @taljeon made their first contribution in #11571
• @itshakemd made their first contribution in #11594

Full Changelog: THUNDERBIRD_24_0b2...THUNDERBIRD_25_0b1

Fixed:

• Attachment filenames with non-ASCII characters were incorrectly decoded and saved (#11508)

Contributors:

• Thanks to: @aindriu80, @AvikMakwana, @chrisdebian, @Coding-Young, @coreycb, @dani-zilla, @danielcoderman, @Fjoerfoks, @Friese2001, @harshasiddartha, @helakostain, @ibrahim-iqbal, @itsSiide, @joshua-grimmett, @khaledhaltam, @Klofutar, @kryoseu, @Logeshsharma, @Matthaiks, @mohitsatr, @mvanhorn, @oersen, @rafaeltonholo, @ramses-70, @rprys, @schorschii, @shamim-emon, @Shaurya2k06, @snowykte0426, @solokot, @taljeon, @wmontwe

New Contributors:

• @mvanhorn made their first contribution in #11248
• @AvikMakwana made their first contribution in #11301
• @ibrahim-iqbal made their first contribution in #11309
• @ramses-70 made their first contribution in #11389
• @harshasiddartha made their first contribution in #11371
• @chrisdebian made their first contribution in #11406
• @danielcoderman made their first contribution in #11432
• @Logeshsharma made their first contribution in #11460
• @taljeon made their first contribution in #11571

Full Changelog: THUNDERBIRD_23_0...THUNDERBIRD_23_1