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Release notes

Discover the latest updates, improvements, and fixes.

  1. Synthetix Cloud v5.1.3

    Improved Access Management for Application Whitelists We have released a small update to Synthetix Cloud that improves how application whitelists are managed. Previously, certain system restrictions p...

    Wednesday, 11 February 2026

  2. Synthetix Cloud v5.1.2

    Supervisor Mode - Permissions We’ve fixed an issue that could stop Supervisor Mode from working as expected. Previously, the system did not always receive the right permission details for each user. T...

    Wednesday, 4 February 2026

  3. APIs v5.42.0

    Chat Queue - Security Enhancements We’ve made behind-the-scenes improvements to strengthen the security of the chat queue system. This update improves protection against malicious input and helps keep...

    Tuesday, 3 February 2026

  4. Synthetix Cloud v5.1.1

    Mini Knowledge now supports Text-to-Speech You can now listen to articles in Mini Knowledge instead of only reading them. Mini Knowledge is the small knowledge panel used inside chats, allowing agents...

    Monday, 2 February 2026

  5. Synthetix Cloud v5.1.0

    Report Builder Improvements We’ve made several improvements to the Report Builder experience to make it clearer, more reliable and easier to use:Improved reliability – Reports will no longer get stuck...

    Wednesday, 28 January 2026

  6. APIs v5.41.0

    Security / Configuration Enhancements This release improves security and stability with no user-visible changes. Input handling has been tightened to better protect against malicious data, while redun...

    Wednesday, 28 January 2026

  7. Synthetix Cloud v5.0.0

    Widget Management You can now manage your SynthetixJS web widgets from a dedicated Admin section. This means you can:Change what appears on the home screenControl how Chat and the Bot are presentedAdj...

    Monday, 26 January 2026

  8. APIs v5.40.0

    File upload - Improved file safety We’ve introduced an update to strengthen how files are checked when they are uploaded to the system. What changed The platform now applies stricter rules to certain ...

    Thursday, 22 January 2026

  9. APIs v5.39.0

    Environment Variable Manager Improvements These changes help keep the system more organised and efficient, making it easier to maintain and reducing the chance of issues in the future. There’s no chan...

    Tuesday, 20 January 2026

  10. APIs v5.38.0

    Widget Management Update We’ve added internal tracking for changes made to Widget settings in SynthetixJS. This allows us to see when settings are updated and helps support investigation and troublesh...

    Thursday, 15 January 2026

  11. Synthetix Cloud v4.28.2

    Themes: New “Enable Custom Themes” Permission We’ve added a new 'Enable Custom Themes' permission that gives teams more control over who can use and manage custom themes. What this means Admins can no...

    Wednesday, 14 January 2026

  12. APIs v5.37.0

    Word Store Improvements These changes help keep the system more organised and efficient, making it easier to maintain and reducing the chance of issues in the future. There’s no change to how the feat...

    Tuesday, 13 January 2026

  13. Synthetix Cloud v4.28.1

    Text-to-speech - Voice selection You can now select your favourite voice and adjust the default reading speed from the Accessibility tab in your profile preferences....

    Tuesday, 13 January 2026

  14. Synthetix Cloud v4.28.0

    Text-to-speech improvements Several improvements have been made to text-to-speech functionality in Synthetix Cloud to provide a smoother and more consistent listening experience. What's newImproved pl...

    Thursday, 8 January 2026

  15. APIs v5.36.0

    Polly - Support long text The speech generation service has been enhanced to support longer text inputs, ensuring smoother and more natural audio output. What’s newSpeech requests can now exceed the p...

    Thursday, 8 January 2026

  16. APIs v5.35.0

    Add label-based FAQ lookup to knowledge/speech endpoint The knowledge/speech endpoint has been enhanced to support FAQ lookup by label when a faq_id is not provided. What's newFAQs can now be resolved...

    Monday, 29 December 2025

  17. APIs v5.34.0

    Performance and Maintainability Enhancements We’ve made internal improvements to make the system more efficient and easier to maintain. This update reorganises how core components are structured, redu...

    Monday, 29 December 2025

  18. APIs v5.33.0

    ...

    Monday, 29 December 2025

  19. SynthetixJS v1.1.1

    Improved routing and link handling We’ve improved our routing logic to better handle hashbang (#!) article links and ensure more consistent behaviour when navigating the application. Event handling ha...

    Monday, 22 December 2025

  20. Synthetix Cloud v4.27.0

    Text-to-Speech Support for Knowledge Base Articles We’ve added text-to-speech (TTS) playback to Knowledge Base articles in Synthetix Cloud, making it easier and more inclusive for users to access cont...

    Tuesday, 16 December 2025

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