* [Release] Exclude opt-in Element performance metrics from encryption ([\#1901](https://github.com/matrix-org/matrix-js-sdk/pull/1901)). * Give `MatrixCall` the capability to emit `LengthChanged` events ([\#1873](https://github.com/matrix-org/matrix-js-sdk/pull/1873)). Contributed by [SimonBrandner](https://github.com/SimonBrandner). * Improve browser example ([\#1875](https://github.com/matrix-org/matrix-js-sdk/pull/1875)). Contributed by [psrpinto](https://github.com/psrpinto). * Give `CallFeed` the capability to emit on volume changes ([\#1865](https://github.com/matrix-org/matrix-js-sdk/pull/1865)). Contributed by [SimonBrandner](https://github.com/SimonBrandner). * Fix verification request cancellation ([\#1871](https://github.com/matrix-org/matrix-js-sdk/pull/1871)).