De Mozilla Foundation heeft versie 154.0 van Thunderbird uitgebracht. Thunderbird is een opensourceclient voor e-mail en nieuwsgroepen met ondersteuning voor verschillende mail- en newsaccounts. Verder zijn er een spamfilter, spellingscontrole, kalender en adresboek, en heeft het een aanpasbaar uiterlijk. Thunderbird is beschikbaar in twee verschillende versies, die beide als stabiel worden aangeduid. De eerste wordt vaker voorzien van nieuwe functionaliteit en wordt als Release-versie aangeboden; de andere, de Extra Support Release-versie, wordt alleen van bugfixes en stabiliteitsverbeteringen voorzien. In deze uitgave zijn de volgende veranderingen en verbeteringen aangebracht:
What’s NewWhat’s Fixed
- Preview functionality for attachments on macOS
- CMS message with AuthEnvelopedData can be decrypted properly in Thunderbird
- Global search results can open in list view by default with new setting
- "Copy To" folder context menu added for message/rfc822 attachments
- Optional system tray mode that hides Thunderbird when the last window closes
- Support for dragging message/rfc822 type MIME attachments to folder tree
- Microsoft Graph enabled for Microsoft 365
- Remote content warnings appeared despite sender block exceptions being applied
- Collapsed saved-search folders did not deselect their subfolders
- Server-designated special folder flags could be removed until restart
- Messages could render excessive trailing blank lines
- Copying a message subject included the "Subject:" label in copied text
- Moving IMAP folders to Local Folders could delete messages after copy failures
- 7-bit clean unobtrusive signature payloads were unnecessarily base64 encoded
- DisablePasswordReveal policy failed to prevent revealing saved passwords
- Account setup tried local-part usernames before full email addresses
- Read-only CardDAV address books were incorrectly treated as writable
- Autoscroll icon was missing directional arrows in scrollable messages
- Blank 1970-dated messages could appear from incomplete message file copies
- Opening drafts or templates with invalid quoted-printable data could crash Thunderbird
- Thunderbird could crash when inserting a message header into database cache
- IMAP repeatedly notified for messages already read on another device
- Dragging EWS search folders to Trash caused Thunderbird to crash
- Folder compaction displayed incorrect disk space recovery estimates
- Custom OAuth settings for EWS account overwrote original account's settings
- Thunderbird could crash when going offline with an active IMAP IDLE connection
- Thunderbird could crash while running online mail search
- Exchange accounts could show repeated false login failures during authentication
- Expired newsgroup articles showed an insecure "click here" purge link
- IMAP attachments appeared empty after messages were moved by filters
- Default special-folder names could reference nonexistent server folders
- Thunderbird macOS fell back to Software WebRender after GPU process launch failures
- New RSS subscriptions used updated dates instead of published dates
- Calendar sort order was not preserved across Thunderbird restarts
- "All calendars are disabled" banner reappeared after enabling a calendar
- Dismissed CalDAV reminders could permanently stop future event notifications
- Read-only CardDAV calendars were incorrectly treated as writable
- CalDAV sync failed when server responses used UTF-16 encoding
- Visual and UX improvements
- Security fixes
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