* Remove extensible events v1 field population on legacy events ([\#3040](https://github.com/matrix-org/matrix-js-sdk/pull/3040)). * Improve hasUserReadEvent and getUserReadUpTo realibility with threads ([\#3031](https://github.com/matrix-org/matrix-js-sdk/pull/3031)). Fixes vector-im/element-web#24164. * Remove video track when muting video ([\#3028](https://github.com/matrix-org/matrix-js-sdk/pull/3028)). Fixes vector-im/element-call#209. * Make poll start event type available (PSG-962) ([\#3034](https://github.com/matrix-org/matrix-js-sdk/pull/3034)). * Add alt event type matching in Relations model ([\#3018](https://github.com/matrix-org/matrix-js-sdk/pull/3018)). * Remove usage of v1 Identity Server API ([\#3003](https://github.com/matrix-org/matrix-js-sdk/pull/3003)). * Add `device_id` to `/account/whoami` types ([\#3005](https://github.com/matrix-org/matrix-js-sdk/pull/3005)). * Implement MSC3912: Relation-based redactions ([\#2954](https://github.com/matrix-org/matrix-js-sdk/pull/2954)). * Introduce a mechanism for using the rust-crypto-sdk ([\#2969](https://github.com/matrix-org/matrix-js-sdk/pull/2969)). * Support MSC3391: Account data deletion ([\#2967](https://github.com/matrix-org/matrix-js-sdk/pull/2967)). * Fix threaded cache receipt when event holds multiple receipts ([\#3026](https://github.com/matrix-org/matrix-js-sdk/pull/3026)). * Fix false key requests after verifying new device ([\#3029](https://github.com/matrix-org/matrix-js-sdk/pull/3029)). Fixes vector-im/element-web#24167 and vector-im/element-web#23333. * Avoid triggering decryption errors when decrypting redacted events ([\#3004](https://github.com/matrix-org/matrix-js-sdk/pull/3004)). Fixes vector-im/element-web#24084. * bugfix: upload OTKs in sliding sync mode ([\#3008](https://github.com/matrix-org/matrix-js-sdk/pull/3008)). * Apply edits discovered from sync after thread is initialised ([\#3002](https://github.com/matrix-org/matrix-js-sdk/pull/3002)). Fixes vector-im/element-web#23921. * sliding sync: Fix issue where no unsubs are sent when switching rooms ([\#2991](https://github.com/matrix-org/matrix-js-sdk/pull/2991)). * Threads are missing from the timeline ([\#2996](https://github.com/matrix-org/matrix-js-sdk/pull/2996)). Fixes vector-im/element-web#24036. * Close all streams when a call ends ([\#2992](https://github.com/matrix-org/matrix-js-sdk/pull/2992)). Fixes vector-im/element-call#742. * Resume to-device message queue after resumed sync ([\#2920](https://github.com/matrix-org/matrix-js-sdk/pull/2920)). Fixes matrix-org/element-web-rageshakes#17170.