Since November 2024 TI-M is based on Matrix v1.11. Since then, four subsequent versions of the protocol have been released including fixes and new features. In order to make these improvements accessible in TI-M we're planning to rebase our specification on Matrix v1.15.

The necessary changes have already been published in https://github.com/gematik/api-ti-messenger/pull/327. The most notable difference is the mandatory switch to the new OAuth 2.0 APIs which will require deploying matrix-authentication-service (or a suitable replacement). If you have any feedback on these planned changes, you're welcome to leave comments and engage with us on GitHub.