• Various improvements and various bug fixes Threema OnPrem 7.3.1 • Easy device switch: When switching to a new iPhone, you can transfer your Threema OnPrem data directly to the new iOS device using Quick Start (can be disabled by the administrator) • Various UX improvements • Improvements in relation to the logging system • Improved video converting when “Original” is selected as the quality • Memory and performance improvements when handling large files • Improvements in relation to Threema calls • Fixed a bug in relation to group chat notifications • Fixed a possible bug that could occur when encoding URLs • Fixed a bug in relation to voice messages • Fixed various bugs in relation to the custom company logo • Other improvements and various bug fixes

• Easy device switch: When switching to a new iPhone, you can transfer your Threema OnPrem data directly to the new iOS device using Quick Start (can be disabled by the administrator) • Various UX improvements • Improvements in relation to the logging system • Improved video converting when “Original” is selected as the quality • Memory and performance improvements when handling large files • Improvements in relation to Threema calls • Fixed a bug in relation to group chat notifications • Fixed a possible bug that could occur when encoding URLs • Fixed a bug in relation to voice messages • Fixed various bugs in relation to the custom company logo • Other improvements and various bug fixes

• Fixed an issue that caused only a black screen to be displayed in certain cases Threema OnPrem 7.2.4o • Fixed a bug that could occur when opening chats • Fixed a bug that could occur when connecting to the server • Fixed a bug that occurred when deleting or editing sent messages • Various improvements related to VoiceOver and voice messages Threema OnPrem 7.2.3o • Fixed a bug related to restoring a Threema Safe backup with an own server Threema OnPrem 7.2.2o • Fixed a bug related to the contact synchronization Threema OnPrem 7.2.1o • Fixed several bugs related to the Liquid Glass design • Fixed several bugs related to individual and group calls • Fixed several bugs related to forwarding messages • Various performance optimizations • General improvements and various bug fixes

• Fixed a bug that could occur when opening chats • Fixed a bug that could occur when connecting to the server • Fixed a bug that occurred when deleting or editing sent messages • Various improvements related to VoiceOver and voice messages Threema OnPrem 7.2.3o • Fixed a bug related to restoring a Threema Safe backup with an own server Threema OnPrem 7.2.2o • Fixed a bug related to the contact synchronization Threema OnPrem 7.2.1o • Fixed several bugs related to the Liquid Glass design • Fixed several bugs related to individual and group calls • Fixed several bugs related to forwarding messages • Various performance optimizations • General improvements and various bug fixes

• Fixed a bug related to restoring a Threema Safe backup with an own server Threema OnPrem 7.2.2o • Fixed a bug related to the contact synchronization Threema OnPrem 7.2.1o • Fixed several bugs related to the Liquid Glass design • Fixed several bugs related to individual and group calls • Fixed several bugs related to forwarding messages • Various performance optimizations • General improvements and various bug fixes

• Fixed a bug related to the contact synchronization Threema OnPrem 7.2.1o • Fixed several bugs related to the Liquid Glass design • Fixed several bugs related to individual and group calls • Fixed several bugs related to forwarding messages • Various performance optimizations • General improvements and various bug fixes

• Fixed several bugs related to the Liquid Glass design • Fixed several bugs related to individual and group calls • Fixed several bugs related to forwarding messages • Various performance optimizations • General improvements and various bug fixes

• New: This update includes the first adjustments to the new Liquid Glass design • New: The navigation logic has been completely overhauled while simultaneously improving the design of the iPad app • New: All Chats export • Redesign of interfaces for a more modern appearance: • Contacts-Tab • Threema Safe • Message forwarding • New: Forwarding media now includes captions • Added new emojis for emoji reactions (requires iOS 26.4) • Fixed various bugs related to Threema calls • Fixed various bugs related to Threema Safe • Various bug fixes and general improvements

• Fixed various bugs that could occur when connecting to Threema Web Threema OnPrem 7.0.6o • Various bug fixes and general improvements Threema OnPrem 7.0.5o • Various improvements related to restoring a Threema Safe backup • Various bug fixes and general improvements Threema OnPrem 7.0.4o • New: screenshots can be disabled via app configuration in the management cockpit’s app configuration • Fixed a bug that caused messages to be sent late when switching networks • Fixed various bugs related to restoring a Threema Safe backup • Various bug fixes and general improvements Threema OnPrem 7.0.3o • Fixed a bug that prevented logging in with a new username or password • Fix crash during backup restore when Threema Safe URL was preset via MDM Threema OnPrem 7.0.2o • Fixed a bug that prevented logging in with passwords containing special characters • Various bug fixes Threema OnPrem 7.0.1o • This version supports iOS 17 and newer • A more modern look with redesigned screens for • Adding contacts • Creating groups • Starting a new chat • Creating and viewing polls • Previewing file messages and full-screen images • Selecting a document or contact • Scanning QR codes • Editing your profile • Linking a phone number or email address • Setting a revocation password • ID export • More reliable Threema Calls • Various under-the-hood changes • Various bug fixes and general improvements

• Various bug fixes and general improvements Threema OnPrem 7.0.5o • Various improvements related to restoring a Threema Safe backup • Various bug fixes and general improvements Threema OnPrem 7.0.4o • New: screenshots can be disabled via app configuration in the management cockpit’s app configuration • Fixed a bug that caused messages to be sent late when switching networks • Fixed various bugs related to restoring a Threema Safe backup • Various bug fixes and general improvements Threema OnPrem 7.0.3o • Fixed a bug that prevented logging in with a new username or password • Fix crash during backup restore when Threema Safe URL was preset via MDM Threema OnPrem 7.0.2o • Fixed a bug that prevented logging in with passwords containing special characters • Various bug fixes Threema OnPrem 7.0.1o • This version supports iOS 17 and newer • A more modern look with redesigned screens for • Adding contacts • Creating groups • Starting a new chat • Creating and viewing polls • Previewing file messages and full-screen images • Selecting a document or contact • Scanning QR codes • Editing your profile • Linking a phone number or email address • Setting a revocation password • ID export • More reliable Threema Calls • Various under-the-hood changes • Various bug fixes and general improvements

• Various improvements related to restoring a Threema Safe backup • Various bug fixes and general improvements Threema OnPrem 7.0.4o • New: screenshots can be disabled via app configuration in the management cockpit’s app configuration • Fixed a bug that caused messages to be sent late when switching networks • Fixed various bugs related to restoring a Threema Safe backup • Various bug fixes and general improvements Threema OnPrem 7.0.3o • Fixed a bug that prevented logging in with a new username or password • Fix crash during backup restore when Threema Safe URL was preset via MDM Threema OnPrem 7.0.2o • Fixed a bug that prevented logging in with passwords containing special characters • Various bug fixes Threema OnPrem 7.0.1o • This version supports iOS 17 and newer • A more modern look with redesigned screens for • Adding contacts • Creating groups • Starting a new chat • Creating and viewing polls • Previewing file messages and full-screen images • Selecting a document or contact • Scanning QR codes • Editing your profile • Linking a phone number or email address • Setting a revocation password • ID export • More reliable Threema Calls • Various under-the-hood changes • Various bug fixes and general improvements

• New: screenshots can be disabled via app configuration in the management cockpit’s app configuration • Fixed a bug that caused messages to be sent late when switching networks • Fixed various bugs related to restoring a Threema Safe backup • Various bug fixes and general improvements Threema OnPrem 7.0.3o • Fixed a bug that prevented logging in with a new username or password • Fix crash during backup restore when Threema Safe URL was preset via MDM Threema OnPrem 7.0.2o • Fixed a bug that prevented logging in with passwords containing special characters • Various bug fixes Threema OnPrem 7.0.1o • This version supports iOS 17 and newer • A more modern look with redesigned screens for • Adding contacts • Creating groups • Starting a new chat • Creating and viewing polls • Previewing file messages and full-screen images • Selecting a document or contact • Scanning QR codes • Editing your profile • Linking a phone number or email address • Setting a revocation password • ID export • More reliable Threema Calls • Various under-the-hood changes • Various bug fixes and general improvements

• Fixed a bug that prevented logging in with a new username or password • Fixed a crash that could occur during a backup restore when the Threema Safe URL was preset via MDM Threema OnPrem 7.0.2o • Fixed a bug that prevented logging in with passwords containing special characters • Various bug fixes Threema OnPrem 7.0.1o • This version supports iOS 17 and newer • A more modern look with redesigned screens for • Adding contacts • Creating groups • Starting a new chat • Creating and viewing polls • Previewing file messages and full-screen images • Selecting a document or contact • Scanning QR codes • Editing your profile • Linking a phone number or email address • Setting a revocation password • ID export • More reliable Threema Calls • Various under-the-hood changes • Various bug fixes and general improvements

• Fixed a bug that prevented logging in with passwords containing special characters • Various bug fixes Threema OnPrem 7.0.1o • This version supports iOS 17 and newer • A more modern look with redesigned screens for • Adding contacts • Creating groups • Starting a new chat • Creating and viewing polls • Previewing file messages and full-screen images • Selecting a document or contact • Scanning QR codes • Editing your profile • Linking a phone number or email address • Setting a revocation password • ID export • More reliable Threema Calls • Various under-the-hood changes • Various bug fixes and general improvements

• This version supports iOS 17 and newer • A more modern look with redesigned screens for • Adding contacts • Creating groups • Starting a new chat • Creating and viewing polls • Previewing file messages and full-screen images • Selecting a document or contact • Scanning QR codes • Editing your profile • Linking a phone number or email address • Setting a revocation password • ID export • More reliable Threema Calls • Various under-the-hood changes • Various bug fixes and general improvements

Threema OnPrem 6.8.8o • Various bug fixes and general improvements • Starting with the upcoming major app version, iOS 15 and 16 will no longer be supported

Threema OnPrem 6.8.7o • Various bug fixes and general improvements

Threema OnPrem 6.8.6o • Fixed an issue in relation to sharing screenshots • Fixed an issue in relation to device linking • Fixed an issue in relation to storage management • Various bug fixes and general improvements

Threema OnPrem 6.8.5o • Improvements in relation to group calls

Threema OnPrem 6.8.4o • Adjusted the color scheme in the app to improve the readability of texts • Fixed a bug in relation to stickers • Various bug fixes and improvements

Threema OnPrem 6.8.3o • Fixed a bug in relation to voice messages • Added “Alarm” as a custom call sound • Various bug fixes and performance improvements Threema OnPrem 6.8.2o • Updated the logo and color scheme to reflect the new corporate design Threema OnPrem 6.8.1o • This update requires iOS 15.8 or above • Added Bulgarian localization • Fixed a bug in relation to linked contacts • Various improvements and bug fixes in relation to notifications, voice messages, individual calls, and group calls • General performance optimization

Threema OnPrem 6.8.2o • Updated the logo and color scheme to reflect the new corporate design Threema OnPrem 6.8.1o • This update requires iOS 15.8 or above • Added Bulgarian localization • Fixed a bug in relation to linked contacts • Various improvements and bug fixes in relation to notifications, voice messages, individual calls, and group calls • General performance optimization

Threema OnPrem 6.8.1o • This update requires iOS 15.8 or above • Added Bulgarian localization • Fixed a bug in relation to linked contacts • Various improvements and bug fixes in relation to notifications, voice messages, individual calls, and group calls • General performance optimization

Threema OnPrem 6.7.1o • Improved connection to the server • Fixed a bug in relation to recording and sending video messages • Fixed a bug in relation to processing incoming messages from an unknown sender • Improved file synchronization between the mobile app and Threema for desktop • General performance optimization

• New: You can now react to messages with emoji • Various other improvements and bug fixes Threema OnPrem 6.6 • Overhauled appearance of the agree/disagree icons (in preparation for the upcoming emoji reactions feature) • Various other improvements and bug fixes