matrix-rust-sdk

# Changelog

All notable changes to this project will be documented in this file.

<!-- changelog start -->

## [0.18.0](https://github.com/matrix-org/matrix-rust-sdk/tree/0.18.0) - 2026-06-02

No significant changes.

## [0.17.0] - 2026-05-08

### Features

- Add support in the implementation of `EventCacheStore` for

  having duplicate events in a room, where each duplicate is in a different

  `LinkedChunk`. This is useful, e.g., when an event is in a room and a

  thread in that room. The change involves a database migration where

  the `EVENTS` object store is cleared and then modified so that the

  `ROOM` index no longer requires keys to be unique.

  ([#6200](https://github.com/matrix-org/matrix-rust-sdk/pull/6200))

- Implement `CryptoStore::get_pending_key_bundle_details_for_room` and

  `CryptoStore::get_all_rooms_pending_key_bundle`, and process

  `rooms_pending_key_bundle` field in `Changes`.

  ([#6199](https://github.com/matrix-org/matrix-rust-sdk/pull/6199)),

  ([#6233](https://github.com/matrix-org/matrix-rust-sdk/pull/6233))

- Expose implementations of `EventCacheStore` and `MediaStore` and add a

  composite type for initializing all stores with a single function - i.e.,

  `IndexeddbStores::open`. Additionally, allow feature flags for each of the

  stores to be used independent of and in combination with the others.

  ([#5946](https://github.com/matrix-org/matrix-rust-sdk/pull/5946))

- Implement new method `CyptoStore::has_downloaded_all_room_keys`, and process

  `room_key_backups_fully_downloaded` field in `Changes`.

  ([#6017](https://github.com/matrix-org/matrix-rust-sdk/pull/6017))

  ([#6044](https://github.com/matrix-org/matrix-rust-sdk/pull/6044))

- [**breaking**] In `EventCacheStore::handle_linked_chunk_updates`, new chunks

  may no longer reference chunk identifiers which do not yet exist in the store

  ([#6061](https://github.com/matrix-org/matrix-rust-sdk/pull/6061))

### Bug fixes

- Ensure that encrypted tests are run with a `StoreCipher`. This happened to

  reveal tests which fail in an encrypted `EventCacheStore`, which required

  fixing queries for all events in a room.

  ([#5933](https://github.com/matrix-org/matrix-rust-sdk/pull/5933))

### Refactor

- Add migration to `IndexeddbCryptoStore` that removes cross-process lock

  generation key from `CORE` object store, as this is tracked in `LEASE_LOCKS`

  object store.

  ([#6326](https://github.com/matrix-org/matrix-rust-sdk/pull/6326))

## [0.16.1] - 2026-05-08

No notable changes in this release.

## [0.16.0] - 2025-12-04

### Features

- Implement new method `CryptoStore::get_withheld_sessions_by_room_id`.

  ([#5819](https://github.com/matrix-org/matrix-rust-sdk/pull/5819))

- [**breaking**] `IndexeddbCryptoStore::get_withheld_info` now returns

  `Result<Option<RoomKeyWithheldEntry>, ...>`.

  ([#5737](https://github.com/matrix-org/matrix-rust-sdk/pull/5737))

- Implement `StateStore::upsert_thread_subscriptions()` method for bulk upserts.

  ([#5848](https://github.com/matrix-org/matrix-rust-sdk/pull/5848))

### Performance

- Improve performance of certain media queries in `MediaStore` implementation by

  storing media content and media metadata in separate object stores in

  IndexedDB (see

  [#5795](https://github.com/matrix-org/matrix-rust-sdk/pull/5795)).

## [0.14.0] - 2025-09-04

No notable changes in this release.

## [0.13.0] - 2025-07-10

### Features

- Add support for received room key bundle data, as required by encrypted

  history sharing

  ((MSC4268)[[https://github.com/matrix-org/matrix-spec-proposals/pull/4268][https-github-com-matrix-org-matrix-spec-proposals-pull-4268])).

  ([#5276](https://github.com/matrix-org/matrix-rust-sdk/pull/5276))

## [0.12.0] - 2025-06-10

No notable changes in this release.

## [0.11.0] - 2025-04-11

No notable changes in this release.

## [0.10.0] - 2025-02-04

No notable changes in this release.

## [0.9.0] - 2024-12-18

No notable changes in this release.

## [0.8.0] - 2024-11-19

### Features

- Improve the efficiency of objects stored in the crypto store.

  ([#3645](https://github.com/matrix-org/matrix-rust-sdk/pull/3645),

  [#3651](https://github.com/matrix-org/matrix-rust-sdk/pull/3651))

- Add new method `IndexeddbCryptoStore::open_with_key`.

  ([#3423](https://github.com/matrix-org/matrix-rust-sdk/pull/3423))

- `save_change` performance improvement, all encryption and serialization

  is done now outside of the db transaction.

### Bug fixes

- Use the `DisplayName` struct to protect against homoglyph attacks.

[https-github-com-matrix-org-matrix-spec-proposals-pull-4268]: https://github.com/matrix-org/matrix-spec-proposals/pull/4268