* Fix issue with rooms not getting marked as unread ([\#2163](https://github.com/matrix-org/matrix-js-sdk/pull/2163)). Fixes vector-im/element-web#20971.
* Don't store streams that are only used once ([\#2157](https://github.com/matrix-org/matrix-js-sdk/pull/2157)). Fixes vector-im/element-web#20932. Contributed by @SimonBrandner.
* Fix edge cases around RR calculations ([\#2160](https://github.com/matrix-org/matrix-js-sdk/pull/2160)). Fixes vector-im/element-web#20922.
* Account for encryption in `maySendMessage()` ([\#2159](https://github.com/matrix-org/matrix-js-sdk/pull/2159)). Contributed by @SimonBrandner.
* Send references to thread root to threads, even out of order ([\#2156](https://github.com/matrix-org/matrix-js-sdk/pull/2156)).
* Fix initial sync fail when event fetching unsuccessful ([\#2150](https://github.com/matrix-org/matrix-js-sdk/pull/2150)). Fixes vector-im/element-web#20862.
* Don't decrypt redacted messages ([\#2143](https://github.com/matrix-org/matrix-js-sdk/pull/2143)). Contributed by @SimonBrandner.

* Fix issue with rooms not getting marked as unread ([\#2163](https://github.com/matrix-org/matrix-js-sdk/pull/2163)). Fixes vector-im/element-web#20971.
* Don't store streams that are only used once ([\#2157](https://github.com/matrix-org/matrix-js-sdk/pull/2157)). Fixes vector-im/element-web#20932. Contributed by @SimonBrandner.
* Fix edge cases around RR calculations ([\#2160](https://github.com/matrix-org/matrix-js-sdk/pull/2160)). Fixes vector-im/element-web#20922.
* Account for encryption in `maySendMessage()` ([\#2159](https://github.com/matrix-org/matrix-js-sdk/pull/2159)). Contributed by @SimonBrandner.
* Send references to thread root to threads, even out of order ([\#2156](https://github.com/matrix-org/matrix-js-sdk/pull/2156)).
* Fix initial sync fail when event fetching unsuccessful ([\#2150](https://github.com/matrix-org/matrix-js-sdk/pull/2150)). Fixes vector-im/element-web#20862.
* Don't decrypt redacted messages ([\#2143](https://github.com/matrix-org/matrix-js-sdk/pull/2143)). Contributed by @SimonBrandner.

* Support m.asset in m.location event content ([\#2109](https://github.com/matrix-org/matrix-js-sdk/pull/2109)).
* Send extensible events structure and support on-demand parsing ([\#2091](https://github.com/matrix-org/matrix-js-sdk/pull/2091)).
* Support cancelling events whilst they are in status = ENCRYPTING ([\#2095](https://github.com/matrix-org/matrix-js-sdk/pull/2095)).
* Fix http-api butchering idServer requests ([\#2134](https://github.com/matrix-org/matrix-js-sdk/pull/2134)). Fixes vector-im/element-web#20680.
* Don't remove streams that still have tracks ([\#2104](https://github.com/matrix-org/matrix-js-sdk/pull/2104)).

* Support m.asset in m.location event content ([\#2109](https://github.com/matrix-org/matrix-js-sdk/pull/2109)).
* Send extensible events structure and support on-demand parsing ([\#2091](https://github.com/matrix-org/matrix-js-sdk/pull/2091)).
* Support cancelling events whilst they are in status = ENCRYPTING ([\#2095](https://github.com/matrix-org/matrix-js-sdk/pull/2095)).
* Fix http-api butchering idServer requests ([\#2134](https://github.com/matrix-org/matrix-js-sdk/pull/2134)). Fixes vector-im/element-web#20680.
* Don't remove streams that still have tracks ([\#2104](https://github.com/matrix-org/matrix-js-sdk/pull/2104)).

* Don't consider alt_aliases when calculating room name ([\#2094](https://github.com/matrix-org/matrix-js-sdk/pull/2094)). Fixes vector-im/element-web#13887.
* Load room history if necessary when searching for MSC3089 getFileEvent() ([\#2066](https://github.com/matrix-org/matrix-js-sdk/pull/2066)).
* Add support for MSC3030 `/timestamp_to_event` ([\#2072](https://github.com/matrix-org/matrix-js-sdk/pull/2072)).
* Stop encrypting redactions as it isn't spec compliant ([\#2098](https://github.com/matrix-org/matrix-js-sdk/pull/2098)). Fixes vector-im/element-web#20460.
* Fix more function typings relating to key backup ([\#2086](https://github.com/matrix-org/matrix-js-sdk/pull/2086)).
* Fix timeline search in MSC3089 getFileEvent() ([\#2085](https://github.com/matrix-org/matrix-js-sdk/pull/2085)).
* Set a `deviceId` for VoIP example and use `const`/`let` ([\#2090](https://github.com/matrix-org/matrix-js-sdk/pull/2090)). Fixes #2083. Contributed by @SimonBrandner.
* Fix incorrect TS return type for secret storage and key backup functions ([\#2082](https://github.com/matrix-org/matrix-js-sdk/pull/2082)).

* Don't consider alt_aliases when calculating room name ([\#2094](https://github.com/matrix-org/matrix-js-sdk/pull/2094)). Fixes vector-im/element-web#13887.
* Load room history if necessary when searching for MSC3089 getFileEvent() ([\#2066](https://github.com/matrix-org/matrix-js-sdk/pull/2066)).
* Add support for MSC3030 `/timestamp_to_event` ([\#2072](https://github.com/matrix-org/matrix-js-sdk/pull/2072)).
* Stop encrypting redactions as it isn't spec compliant ([\#2098](https://github.com/matrix-org/matrix-js-sdk/pull/2098)). Fixes vector-im/element-web#20460.
* Fix more function typings relating to key backup ([\#2086](https://github.com/matrix-org/matrix-js-sdk/pull/2086)).
* Fix timeline search in MSC3089 getFileEvent() ([\#2085](https://github.com/matrix-org/matrix-js-sdk/pull/2085)).
* Set a `deviceId` for VoIP example and use `const`/`let` ([\#2090](https://github.com/matrix-org/matrix-js-sdk/pull/2090)). Fixes #2083. Contributed by @SimonBrandner.
* Fix incorrect TS return type for secret storage and key backup functions ([\#2082](https://github.com/matrix-org/matrix-js-sdk/pull/2082)).

* Improve fallback key behaviour ([\#2037](https://github.com/matrix-org/matrix-js-sdk/pull/2037)).
* Add new room event filter fields ([\#2051](https://github.com/matrix-org/matrix-js-sdk/pull/2051)).
* Add method to fetch /account/whoami ([\#2046](https://github.com/matrix-org/matrix-js-sdk/pull/2046)).
* Filter out falsey opts in /relations API hits ([\#2059](https://github.com/matrix-org/matrix-js-sdk/pull/2059)). Fixes vector-im/element-web#20137.
* Fix paginateEventTimeline resolve to boolean ([\#2054](https://github.com/matrix-org/matrix-js-sdk/pull/2054)).
* Fix incorrect MSC3089 typings and add null checks ([\#2049](https://github.com/matrix-org/matrix-js-sdk/pull/2049)).

* Improve fallback key behaviour ([\#2037](https://github.com/matrix-org/matrix-js-sdk/pull/2037)).
* Add new room event filter fields ([\#2051](https://github.com/matrix-org/matrix-js-sdk/pull/2051)).
* Add method to fetch /account/whoami ([\#2046](https://github.com/matrix-org/matrix-js-sdk/pull/2046)).
* Filter out falsey opts in /relations API hits ([\#2059](https://github.com/matrix-org/matrix-js-sdk/pull/2059)). Fixes vector-im/element-web#20137.
* Fix paginateEventTimeline resolve to boolean ([\#2054](https://github.com/matrix-org/matrix-js-sdk/pull/2054)).
* Fix incorrect MSC3089 typings and add null checks ([\#2049](https://github.com/matrix-org/matrix-js-sdk/pull/2049)).

* Security release with updated version of Olm to fix https://matrix.org/blog/2021/12/03/pre-disclosure-upcoming-security-release-of-libolm-and-matrix-js-sdk

* Remove support for `ArrayBuffer` in unstable MSC3089 `createFile()` and `createNewVersion()` and instead use same content types as handled by `MatrixClient.uploadContent()`. This enables support for Node.js. ([\#2014](https://github.com/matrix-org/matrix-js-sdk/pull/2014)).
* Support for password-based backup on Node.js ([\#2021](https://github.com/matrix-org/matrix-js-sdk/pull/2021)).
* Add optional force parameter when ensuring Olm sessions ([\#2027](https://github.com/matrix-org/matrix-js-sdk/pull/2027)).
* Fix call upgrades ([\#2024](https://github.com/matrix-org/matrix-js-sdk/pull/2024)). Contributed by @SimonBrandner.

* Remove support for `ArrayBuffer` in unstable MSC3089 `createFile()` and `createNewVersion()` and instead use same content types as handled by `MatrixClient.uploadContent()`. This enables support for Node.js. ([\#2014](https://github.com/matrix-org/matrix-js-sdk/pull/2014)).
* Support for password-based backup on Node.js ([\#2021](https://github.com/matrix-org/matrix-js-sdk/pull/2021)).
* Add optional force parameter when ensuring Olm sessions ([\#2027](https://github.com/matrix-org/matrix-js-sdk/pull/2027)).
* Fix call upgrades ([\#2024](https://github.com/matrix-org/matrix-js-sdk/pull/2024)). Contributed by @SimonBrandner.

* Fix edit history being broken after editing an unencrypted event with an encrypted event ([\#2013](https://github.com/matrix-org/matrix-js-sdk/pull/2013)). Fixes vector-im/element-web#19651 and vector-im/element-web#19651. Contributed by @aaronraimist.
* Make events pagination responses parse threads ([\#2011](https://github.com/matrix-org/matrix-js-sdk/pull/2011)). Fixes vector-im/element-web#19587 and vector-im/element-web#19587.

* Fix edit history being broken after editing an unencrypted event with an encrypted event ([\#2013](https://github.com/matrix-org/matrix-js-sdk/pull/2013)). Fixes vector-im/element-web#19651 and vector-im/element-web#19651. Contributed by @aaronraimist.
* Make events pagination responses parse threads ([\#2011](https://github.com/matrix-org/matrix-js-sdk/pull/2011)). Fixes vector-im/element-web#19587 and vector-im/element-web#19587.

* Mark old verification methods as deprecated ([\#1994](https://github.com/matrix-org/matrix-js-sdk/pull/1994)).
* Try to set a sender on search result events if possible ([\#2004](https://github.com/matrix-org/matrix-js-sdk/pull/2004)).
* Port some changes from group calls branch to develop ([\#2001](https://github.com/matrix-org/matrix-js-sdk/pull/2001)). Contributed by @SimonBrandner.
* Fetch room membership from server rather than relying on stored data ([\#1998](https://github.com/matrix-org/matrix-js-sdk/pull/1998)).
* Add method to fetch the MSC3266 Room Summary of a Room ([\#1988](https://github.com/matrix-org/matrix-js-sdk/pull/1988)).
* Don't show `Unable to access microphone` when cancelling screensharing dialog ([\#2005](https://github.com/matrix-org/matrix-js-sdk/pull/2005)). Fixes vector-im/element-web#19533 and vector-im/element-web#19533. Contributed by @SimonBrandner.
* Strip direction override characters from display names ([\#1992](https://github.com/matrix-org/matrix-js-sdk/pull/1992)). Fixes vector-im/element-web#1712 and vector-im/element-web#1712.

* Mark old verification methods as deprecated ([\#1994](https://github.com/matrix-org/matrix-js-sdk/pull/1994)).
* Try to set a sender on search result events if possible ([\#2004](https://github.com/matrix-org/matrix-js-sdk/pull/2004)).
* Port some changes from group calls branch to develop ([\#2001](https://github.com/matrix-org/matrix-js-sdk/pull/2001)). Contributed by @SimonBrandner.
* Fetch room membership from server rather than relying on stored data ([\#1998](https://github.com/matrix-org/matrix-js-sdk/pull/1998)).
* Add method to fetch the MSC3266 Room Summary of a Room ([\#1988](https://github.com/matrix-org/matrix-js-sdk/pull/1988)).
* Don't show `Unable to access microphone` when cancelling screensharing dialog ([\#2005](https://github.com/matrix-org/matrix-js-sdk/pull/2005)). Fixes vector-im/element-web#19533 and vector-im/element-web#19533. Contributed by @SimonBrandner.
* Strip direction override characters from display names ([\#1992](https://github.com/matrix-org/matrix-js-sdk/pull/1992)). Fixes vector-im/element-web#1712 and vector-im/element-web#1712.

* Use `ICallFeedOpts` in the `CallFeed` constructor. To construct a new `CallFeed` object you have to pass `ICallFeedOpts` e.g. `const callFeed = new CallFeed({client ([\#1964](https://github.com/matrix-org/matrix-js-sdk/pull/1964)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Make threads use 'm.thread' relation ([\#1980](https://github.com/matrix-org/matrix-js-sdk/pull/1980)).
* Try to answer a call without video if we can't access the camera  ([\#1972](https://github.com/matrix-org/matrix-js-sdk/pull/1972)). Fixes vector-im/element-web#17975 and vector-im/element-web#17975. Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Make `opts` in `importRoomKeys()` optional ([\#1974](https://github.com/matrix-org/matrix-js-sdk/pull/1974)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Enable TypeScript declaration maps ([\#1966](https://github.com/matrix-org/matrix-js-sdk/pull/1966)). Contributed by [Alexendoo](https://github.com/Alexendoo).
* Fix `requestVerificationDM` with chronological `pendingEventOrdering` ([\#1943](https://github.com/matrix-org/matrix-js-sdk/pull/1943)). Contributed by [freaktechnik](https://github.com/freaktechnik).

* Use `ICallFeedOpts` in the `CallFeed` constructor. To construct a new `CallFeed` object you have to pass `ICallFeedOpts` e.g. `const callFeed = new CallFeed({client ([\#1964](https://github.com/matrix-org/matrix-js-sdk/pull/1964)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Make threads use 'm.thread' relation ([\#1980](https://github.com/matrix-org/matrix-js-sdk/pull/1980)).
* Try to answer a call without video if we can't access the camera  ([\#1972](https://github.com/matrix-org/matrix-js-sdk/pull/1972)). Fixes vector-im/element-web#17975 and vector-im/element-web#17975. Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Make `opts` in `importRoomKeys()` optional ([\#1974](https://github.com/matrix-org/matrix-js-sdk/pull/1974)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Enable TypeScript declaration maps ([\#1966](https://github.com/matrix-org/matrix-js-sdk/pull/1966)). Contributed by [Alexendoo](https://github.com/Alexendoo).
* Fix `requestVerificationDM` with chronological `pendingEventOrdering` ([\#1943](https://github.com/matrix-org/matrix-js-sdk/pull/1943)). Contributed by [freaktechnik](https://github.com/freaktechnik).

* Support for call upgrades. `setLocalVideoMuted()` and `setMicrophoneMuted()` are now `async` and return the new mute state ([\#1827](https://github.com/matrix-org/matrix-js-sdk/pull/1827)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Implement file versioning for tree spaces ([\#1952](https://github.com/matrix-org/matrix-js-sdk/pull/1952)).
* Allow answering calls without audio/video ([\#1950](https://github.com/matrix-org/matrix-js-sdk/pull/1950)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Add `bound` to `IThreepid` ([\#1941](https://github.com/matrix-org/matrix-js-sdk/pull/1941)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Add `trusted_locally` to `TrustInfo` ([\#1942](https://github.com/matrix-org/matrix-js-sdk/pull/1942)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Fix incorrect return value type in getJoinedRooms() ([\#1959](https://github.com/matrix-org/matrix-js-sdk/pull/1959)). Contributed by [psrpinto](https://github.com/psrpinto).
* Make sure to set `callLengthInterval` only once ([\#1958](https://github.com/matrix-org/matrix-js-sdk/pull/1958)). Fixes vector-im/element-web#19221 and vector-im/element-web#19221. Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Fix event partitioning from non threading ready clients ([\#1948](https://github.com/matrix-org/matrix-js-sdk/pull/1948)).
* Ensure unencrypted fields get exposed by getEffectiveEvent() ([\#1938](https://github.com/matrix-org/matrix-js-sdk/pull/1938)). Fixes vector-im/element-web#19062 and vector-im/element-web#19062.

* Support for call upgrades. `setLocalVideoMuted()` and `setMicrophoneMuted()` are now `async` and return the new mute state ([\#1827](https://github.com/matrix-org/matrix-js-sdk/pull/1827)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Implement file versioning for tree spaces ([\#1952](https://github.com/matrix-org/matrix-js-sdk/pull/1952)).
* Allow answering calls without audio/video ([\#1950](https://github.com/matrix-org/matrix-js-sdk/pull/1950)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Add `bound` to `IThreepid` ([\#1941](https://github.com/matrix-org/matrix-js-sdk/pull/1941)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Add `trusted_locally` to `TrustInfo` ([\#1942](https://github.com/matrix-org/matrix-js-sdk/pull/1942)). Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Fix incorrect return value type in getJoinedRooms() ([\#1959](https://github.com/matrix-org/matrix-js-sdk/pull/1959)). Contributed by [psrpinto](https://github.com/psrpinto).
* Make sure to set `callLengthInterval` only once ([\#1958](https://github.com/matrix-org/matrix-js-sdk/pull/1958)). Fixes vector-im/element-web#19221 and vector-im/element-web#19221. Contributed by [SimonBrandner](https://github.com/SimonBrandner).
* Fix event partitioning from non threading ready clients ([\#1948](https://github.com/matrix-org/matrix-js-sdk/pull/1948)).
* Ensure unencrypted fields get exposed by getEffectiveEvent() ([\#1938](https://github.com/matrix-org/matrix-js-sdk/pull/1938)). Fixes vector-im/element-web#19062 and vector-im/element-web#19062.