doc: Add changelog entries

Author: jmartinesp

bindings/matrix-sdk-ffi/CHANGELOG.md

@@ -44,6 +44,8 @@ All notable changes to this project will be documented in this file.
 
 ### Features
 
+- `RoomNotificationInfo`, `NotificationItem` and `SpaceRoom` now have `is_dm` fields. 
+  ([#6537](https://github.com/matrix-org/matrix-rust-sdk/pull/6537))
 - Expose `RoomMember::is_service_member` field. ([#6536](https://github.com/matrix-org/matrix-rust-sdk/pull/6536))
 - Expose `beacon` and `beacon_info` fields in `RoomPowerLevelsValues` and `RoomPowerLevelChanges`,
   allowing clients to read and update the power levels required to send beacon (live location)

crates/matrix-sdk-base/CHANGELOG.md

@@ -33,6 +33,11 @@ All notable changes to this project will be documented in this file.
 
 ### Features
 
+- [**breaking**] Add `RoomSummary::active_service_members` field to act as a cached value that will be computed 
+  when we sync members. Rename `Room::is_dm` to `Room::compute_is_dm` since it will now also store the computed 
+  active service members count in the new cached field. `Room::active_service_members` is now 
+  `Room::update_active_service_members` for the same reason.
+  ([#6537](https://github.com/matrix-org/matrix-rust-sdk/pull/6537))
 - [**breaking**] Enforce atomic and synchronized updates to `RoomInfo`. Requires 
   `StateStore::save_changes` to acquire state store lock and replaces `Room::set_room_info` 
   with an atomic version, `Room::update_room_info`, which is also synchronized by

crates/matrix-sdk-ui/CHANGELOG.md

@@ -38,6 +38,8 @@ All notable changes to this project will be documented in this file.
 
 ### Features
 
+- `SpaceRoom` and `NotificationItem` now have an `is_dm` field to indicate whether the room is a DM room. 
+  ([#6537](https://github.com/matrix-org/matrix-rust-sdk/pull/6537))
 - Add a list of `declined_by: Vec<OwnedUserId>` to the `TimelineItemContent::RtcNotification`, this will contain the list
   of users that have declined the call.
   ([#6494](https://github.com/matrix-org/matrix-rust-sdk/pull/6494))

crates/matrix-sdk/CHANGELOG.md

@@ -8,6 +8,10 @@ All notable changes to this project will be documented in this file.
 
 ### Features
 
+- [**breaking**] `Room::is_dm` was renamed to `Room::compute_is_dm` to match its behavior, since it'll now compute 
+  and cache the result. A new *synchronous* `Room::is_dm` function was added which centralizes the logic of 
+  checking if something is a DM based on that cached value and the provided `DmRoomDefinition`. `Room::sync_members` 
+  will also now compute active service members. ([#6537](https://github.com/matrix-org/matrix-rust-sdk/pull/6537))
 - [**breaking**] Enforce atomic and synchronized updates to `RoomInfo`. Requires 
   `StateStore::save_changes` to acquire state store lock and replaces `Room::set_room_info` 
   with an atomic version, `Room::update_room_info`, which is also synchronized by