* Implement MSC3758: a push rule condition to match event properties exactly ([\#3179](https://github.com/matrix-org/matrix-js-sdk/pull/3179)). * Enable group calls without video and audio track by configuration of MatrixClient ([\#3162](https://github.com/matrix-org/matrix-js-sdk/pull/3162)). Contributed by @EnricoSchw. * Updates to protocol used for Sign in with QR code ([\#3155](https://github.com/matrix-org/matrix-js-sdk/pull/3155)). Contributed by @hughns. * Implement MSC3873 to handle escaped dots in push rule keys ([\#3134](https://github.com/matrix-org/matrix-js-sdk/pull/3134)). Fixes undefined/matrix-js-sdk#1454. * Fix spec compliance issue around encrypted `m.relates_to` ([\#3178](https://github.com/matrix-org/matrix-js-sdk/pull/3178)). * Fix reactions in threads sometimes causing stuck notifications ([\#3146](https://github.com/matrix-org/matrix-js-sdk/pull/3146)). Fixes vector-im/element-web#24000. Contributed by @justjanne.