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What’s New

Threema 5.0.1 for iOS

  • Several improvements in relation to mentions
  • Fixed a possible bug in relation to chat exports
  • Fixed a bug that could cause the scroll position to jump after opening a chat again from the App Switcher
  • Added a “Scan QR code” option to the text input menu
  • For VoiceOver users, the new chat view is disabled in this version. The reported issues will be addressed and the new chat view reenabled in a future version.

Threema 5.0 for iOS

  • Full technical and visual overhaul of the chat view
  • Improved in-chat search, providing all results at a glance
  • Past chat messages will now load automatically when scrolling (infinite scrolling)
  • Inline player for voice messages
  • Media and files can now be viewed while the sending process is ongoing
  • Redesign of the message detail view (accessible by swiping left on a message)
  • In group messages, the members’ names are now displayed in different colors
  • Live preview of text formatting
  • Improved message delivery when the app is in the background
  • Various bug fixes and numerous under-the-hood improvements

Threema for Desktop 1.2.29

  • Miscellaneous minor improvements and bug fixes

Threema for Desktop 1.2.27

  • Miscellaneous minor improvements and bug fixes

Threema for Desktop 1.2.25

  • Miscellaneous minor improvements and bug fixes

Threema for Desktop 1.2.21

  • Miscellaneous minor improvements and bug fixes

Threema for Desktop 1.2.18

  • Miscellaneous minor improvements

Threema for Desktop 1.2.13

  • Miscellaneous minor improvements and bug fixes

Threema for Desktop 1.2.7

  • Miscellaneous minor improvements and bug fixes

Threema for Desktop 1.2.5

  • macOS: File attributes are set correctly on downloaded files
  • Miscellaneous minor improvements and bug fixes

Threema for Desktop 1.2.0

  • macOS: Improved support for Apple processors
  • Linux: Fixed an issue where the app icon was missing in some cases
  • Linux: The rpm package is now signed (https://threema.ch/en/faq/rpm_signature)
  • Miscellaneous minor improvements and bug fixes

Threema 5.0.4 for Android

  • Text formatting is now supported in GIF captions
  • Fixed a bug that caused voice messages on some smartphones to be distorted
  • Updated the Zip4j library to the current version (fixes CVE-2023-22899)
  • Restoring a backup will now be cancelled if an incompatible backup file is used
  • Voice messages from contacts with an iOS device will now be forwarded as voice messages instead of audio files
  • A system notification will now be displayed if a contact downgraded to an app version that does not support Perfect Forward Secrecy
  • Adjustment of the data backup so that file names no longer show metadata (reported by Thore Göbel)
  • Other improvements and minor bug fixes

Threema 5.0.3 for Android

  • Video preview is now seekable
  • Improved precision when trimming videos
  • Minor improvements and bug fixes

Threema 5.0.2 for Android

  • Group call notifications now respect the “Do not disturb” setting
  • Minor improvements and bug fixes

Threema 5.0.1 for Android

  • Minor improvements and bug fixes

Threema 5.0 for Android

  • New: end-to-end encrypted group calls (audio and video)
  • New: agree/disagree feature also available in group chats
  • New: edit received images on the fly and send them right back (tap and hold > pencil icon)
  • New: send and receive messages with Perfect Forward Secrecy
  • Support for new chat server protocol
  • Minor bug fixes
  • Security improvements:
    • Improve chat server authentication protocol to prevent a payload confusion and a theoretical replay issue
    • Introduce an additional warning message if a connection from another device using the same Threema ID has been detected since the last time that the app was used
    • Disable compression of Threema Safe backups to rule out the theoretical possibility of a compression oracle
      Thanks to Kenny Paterson, Matteo Scarlata and Kien Tuong Truong of the Applied Cryptography Group at ETH Zurich for bringing these issues to our attention

Threema Web 2.3.0 Säntis

  • Sending files up to 50 MB
  • Support for https://threema.id/ URLs
  • Graphical password strength indicator
  • Updated emojis to 12.1, and skin tone selector support

See all changes on GitHub.