What’s New

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 5.0.1 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 4.84 for Android

  • Improved UI of voice-message player
  • Various improvements in video editor
  • Minor bug fixes

Threema 4.83 for Android

Starting with this version, Threema is also available via F-Droid. Learn more…
  • Threema can now also be used as a maps app to display “geo:” URIs from external apps
  • The order of emojis has been adjusted to the standard
  • Minor bug fixes

Threema 4.82 for Android

  • New design of recently added contacts with additional options
  • Support for “geo:” URIs
  • Bug fixes

Threema 4.81 for Android

  • Various new emojis as per Unicode 14 standard (e.g., the melting face)
  • Spam-reporting option for new contacts
  • Various improvements and bug fixes

Threema 4.8 for Android

  • Various new emojis as per Unicode 13.1 standard (e.g., the heart on fire)
  • Emojis are now searchable by name and meaning
  • Constant colors for contacts and groups without a profile picture
  • Snappier scrolling in lists
  • Optimized UI in media editor
  • Miscellaneous bug fixes and various other improvements

Threema 4.8.5 for iOS

  • The agree/disagree feature is now also available in group chats
  • To celebrate Threema turning ten, we have festooned the app icon. The icon can be changed back to the default or to a legacy version in the settings
  • 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 4.8.4 for iOS

  • Push registration can now be renewed in the advanced settings
  • Fixed a bug that could occur when sending large video
  • Fixed a bug that could, in rare cases, prevent outgoing messages from being sent
  • Fixed a bug in relation to the notification of private chats
  • Fixed various crashes
  • Other improvements and miscellaneous minor bug fixes

Threema 4.8.3 for iOS

  • Fixed various bugs which could cause the app to crash in rare cases

Threema 4.8.2 for iOS

  • Fixed a bug where the notification sound was played for muted chats

Threema 4.8.1 for iOS

  • Fixed a crash that could occur if push notifications are disabled

Threema 4.8 for iOS

This update requires iOS 15.0 or later.
  • New: Mark chats as private, protect them with a password, and hide them in the chat overview
  • New: Set read receipts and typing indicator per contact
  • New: Archive chats
  • New: Filter chat overview by contact name, group name, or Threema ID
  • Revamped contact and group details and various UI tweaks
  • Ukrainian and Slovakian localization
  • Overhaul of internal message processing in preparation for upcoming features
  • Various other under-the-hood improvements for upcoming features

Desktop/Web:
Due to restrictions on Apple’s part, it is only possible for the desktop app / the web client to stay connected when the iOS app is in the foreground (see https://three.ma/webios).

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.