changelogs/appendices/newsfragments/2193.feature

@@ -0,0 +1 @@
+Room IDs can now appear without a domain component in [room version 12](/rooms/v12), as per [MSC4291](https://github.com/matrix-org/matrix-spec-proposals/pull/4291).

changelogs/application_service/newsfragments/2132.clarification

@@ -0,0 +1 @@
+Declare the Application Service Registration schema to follow JSON Schema spec 2020-12.

changelogs/application_service/newsfragments/2182.clarification

@@ -0,0 +1 @@
+Minor fixes to JSON schemas.

changelogs/client_server/newsfragments/2071.deprecation

@@ -0,0 +1 @@
+Deprecate `m.set_avatar_url` and `m.set_displayname` capabilities, as per [MSC4133](https://github.com/matrix-org/matrix-spec-proposals/pull/4133).

changelogs/client_server/newsfragments/2071.feature

@@ -0,0 +1 @@
+Update user profile endpoints to handle custom fields, and add a new `m.profile_fields` capability, as per [MSC4133](https://github.com/matrix-org/matrix-spec-proposals/pull/4133).

changelogs/client_server/newsfragments/2132.clarification

@@ -0,0 +1 @@
+Declare the event schemas to follow JSON Schema spec 2020-12.

changelogs/client_server/newsfragments/2167.clarification

@@ -0,0 +1 @@
+Clarify that `format` is required if `formatted_body` is specified.

changelogs/client_server/newsfragments/2169.clarification

@@ -0,0 +1 @@
+The `latest_event` in an aggregated set of thread events uses the same format as the event itself.

changelogs/client_server/newsfragments/2171.clarification

@@ -0,0 +1 @@
+Fix various typos throughout the specification.

changelogs/client_server/newsfragments/2175.feature

@@ -0,0 +1 @@
+Add `format` query parameter to `GET /state/{eventType}/{stateKey}` to allow fetching metadata of a specific state event.

changelogs/client_server/newsfragments/2177.clarification

@@ -0,0 +1 @@
+Fix various typos throughout the specification.

changelogs/client_server/newsfragments/2179.clarification

@@ -0,0 +1 @@
+Fix various typos throughout the specification.

changelogs/client_server/newsfragments/2182.clarification

@@ -0,0 +1 @@
+Minor fixes to JSON schemas.

changelogs/client_server/newsfragments/2187.feature

@@ -0,0 +1 @@
+Add the `use_state_after` query parameter and `state_after` response property to `GET /sync`, as per [MSC4222](https://github.com/matrix-org/matrix-spec-proposals/issues/4222).

changelogs/client_server/newsfragments/2193.feature.1

@@ -0,0 +1 @@
+When upgrading rooms to [room version 12](/rooms/v12), `additional_creators` may be specified on the [`POST /_matrix/client/v3/rooms/{roomId}/upgrade`](/client-server-api/#post_matrixclientv3roomsroomidupgrade) endpoint, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289).

changelogs/client_server/newsfragments/2193.feature.2

@@ -0,0 +1 @@
+When creating rooms with [room version 12](/rooms/v12), the `trusted_private_chat` preset should merge the invitees into the supplied `content.additional_creators` in the resulting room, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289).

changelogs/client_server/newsfragments/2193.feature.3

@@ -0,0 +1 @@
+In [room version 12](/rooms/v12), the power level of room creators is now infinitely high as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289).

changelogs/client_server/newsfragments/2193.feature.4

@@ -0,0 +1 @@
+In [room version 12](/rooms/v12), room IDs no longer have a domain component as per [MSC4291](https://github.com/matrix-org/matrix-spec-proposals/pull/4291).

changelogs/client_server/newsfragments/2193.feature.5

@@ -0,0 +1 @@
+When creating rooms with [room version 12](/rooms/v12), the initial power levels will restrict the ability to upgrade rooms by default, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289).

changelogs/client_server/newsfragments/2195.clarification

@@ -0,0 +1 @@
+Fix `/sync` flow referencing incorrect parameter to use with `/messages`.

changelogs/client_server/newsfragments/2204.clarification

@@ -0,0 +1 @@
+Clarify wording around the `world_readable` history visibility setting. Contributed by @HarHarLinks.

changelogs/client_server/newsfragments/2206.feature

@@ -0,0 +1 @@
+Add a profile field for a user's time zone, per [MSC4175](https://github.com/matrix-org/matrix-spec-proposals/pull/4175).

changelogs/client_server/newsfragments/2207.feature

@@ -0,0 +1 @@
+Invites and knocks are now expected to contain the `m.room.create` event in their stripped state entries, as per [MSC4311](https://github.com/matrix-org/matrix-spec-proposals/pull/4311).

changelogs/client_server/newsfragments/2210.removal

@@ -0,0 +1 @@
+Remove unintentional intentional mentions in replies as per [MSC4142](https://github.com/matrix-org/matrix-spec-proposals/pull/4142).

changelogs/internal/newsfragments/2157.feature

@@ -0,0 +1 @@
+Add "placeholder MSC" process definition.

changelogs/internal/newsfragments/2160.clarification

@@ -0,0 +1 @@
+Upgrade the docsy theme to version 0.12.0.

changelogs/internal/newsfragments/2172.clarification

@@ -0,0 +1 @@
+GitHub actions are now building the OpenAPI `spec/identity-service-api/api.json` file.

changelogs/internal/newsfragments/2189.clarification

@@ -0,0 +1 @@
+Specify a correct spelling for "display name".

changelogs/internal/newsfragments/2190.clarification

@@ -0,0 +1 @@
+Clarify that clients should replace events with the most recent replacement by origin_server_ts.

changelogs/internal/newsfragments/2193.feature

@@ -0,0 +1 @@
+TODO: Placeholder

changelogs/internal/newsfragments/2205.clarification

@@ -0,0 +1 @@
+Fix a grammatical typo on the Matrix Spec Process documentation page.

changelogs/room_versions/newsfragments/2193.clarification

@@ -0,0 +1 @@
+In room versions 1 through 12, an event's `auth_events` have always needed to belong to the same room as per [MSC4307](https://github.com/matrix-org/matrix-spec-proposals/pull/4307).

changelogs/room_versions/newsfragments/2193.feature.1

@@ -0,0 +1 @@
+Add [room version 12](/rooms/v12) as per [MSC4304](https://github.com/matrix-org/matrix-spec-proposals/pull/4304).

changelogs/room_versions/newsfragments/2193.feature.2

@@ -0,0 +1 @@
+Room IDs in room version 12 are now the event ID of the create event with the normal room ID sigil (`!`), as per [MSC4291](https://github.com/matrix-org/matrix-spec-proposals/pull/4291).

changelogs/room_versions/newsfragments/2193.feature.3

@@ -0,0 +1 @@
+Room creators are formalized in room version 12 and have infinitely high power level, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289).

changelogs/room_versions/newsfragments/2193.feature.4

@@ -0,0 +1 @@
+State Resolution is updated in room version 12 to reduce the opportunity for "state resets", as per [MSC4297](https://github.com/matrix-org/matrix-spec-proposals/pull/4297).

changelogs/room_versions/newsfragments/2193.feature.5

@@ -0,0 +1 @@
+The default room version is now room version 12, though servers SHOULD keep using room version 11 for a little while, as per [MSC4304](https://github.com/matrix-org/matrix-spec-proposals/pull/4304).

changelogs/room_versions/newsfragments/2199.feature

@@ -0,0 +1 @@
+Add [room version 12](/rooms/v12) as per [MSC4304](https://github.com/matrix-org/matrix-spec-proposals/pull/4304).

changelogs/server_server/newsfragments/2207.feature

@@ -0,0 +1 @@
+`invite_room_state` and `knock_room_state` now have additional requirements and validation depending on the room version, as per [MSC4311](https://github.com/matrix-org/matrix-spec-proposals/pull/4311).

config/_default/hugo.toml

@@ -67,7 +67,7 @@ current_version_url = "https://spec.matrix.org/latest"
 # The following is used when status = "stable", and is displayed in various UI elements on a released version
 # of the spec.
 # major = "1"
-# minor = "16"
+# minor = "15"
 
 # User interface configuration
 [params.ui]

content/changelog/v1.16.md

@@ -1,103 +0,0 @@
----
-title: v1.16 Changelog
-linkTitle: v1.16
-type: docs
-layout: changelog
-outputs:
-  - html
-  - checklist
-date: 2025-09-17
----
-
-## Client-Server API
-
-**Deprecations**
-
-- Deprecate `m.set_avatar_url` and `m.set_displayname` capabilities, as per [MSC4133](https://github.com/matrix-org/matrix-spec-proposals/pull/4133). ([#2071](https://github.com/matrix-org/matrix-spec/issues/2071))
-
-**Removed Endpoints**
-
-- Remove unintentional intentional mentions in replies, as per [MSC4142](https://github.com/matrix-org/matrix-spec-proposals/pull/4142). ([#2210](https://github.com/matrix-org/matrix-spec/issues/2210))
-
-**Backwards Compatible Changes**
-
-- Update user profile endpoints to handle custom fields, and add a new `m.profile_fields` capability, as per [MSC4133](https://github.com/matrix-org/matrix-spec-proposals/pull/4133). ([#2071](https://github.com/matrix-org/matrix-spec/issues/2071))
-- Add `format` query parameter to `GET /state/{eventType}/{stateKey}` to allow fetching metadata of a specific state event. ([#2175](https://github.com/matrix-org/matrix-spec/issues/2175))
-- Add the `use_state_after` query parameter and `state_after` response property to `GET /sync`, as per [MSC4222](https://github.com/matrix-org/matrix-spec-proposals/issues/4222). ([#2187](https://github.com/matrix-org/matrix-spec/issues/2187))
-- When upgrading rooms to [room version 12](/rooms/v12), `additional_creators` may be specified on the [`POST /_matrix/client/v3/rooms/{roomId}/upgrade`](/client-server-api/#post_matrixclientv3roomsroomidupgrade) endpoint, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- When creating rooms with [room version 12](/rooms/v12), the `trusted_private_chat` preset should merge the invitees into the supplied `content.additional_creators` in the resulting room, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- In [room version 12](/rooms/v12), the power level of room creators is now infinitely high as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- In [room version 12](/rooms/v12), room IDs no longer have a domain component as per [MSC4291](https://github.com/matrix-org/matrix-spec-proposals/pull/4291). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- When creating rooms with [room version 12](/rooms/v12), the initial power levels will restrict the ability to upgrade rooms by default, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- Add a profile field for a user's time zone, as per [MSC4175](https://github.com/matrix-org/matrix-spec-proposals/pull/4175). ([#2206](https://github.com/matrix-org/matrix-spec/issues/2206))
-- Invites and knocks are now expected to contain the `m.room.create` event in their stripped state entries, as per [MSC4311](https://github.com/matrix-org/matrix-spec-proposals/pull/4311). ([#2207](https://github.com/matrix-org/matrix-spec/issues/2207))
-
-**Spec Clarifications**
-
-- Clarify that `format` is required if `formatted_body` is specified. ([#2167](https://github.com/matrix-org/matrix-spec/issues/2167))
-- The `latest_event` in an aggregated set of thread events uses the same format as the event itself. ([#2169](https://github.com/matrix-org/matrix-spec/issues/2169))
-- Fix various typos throughout the specification. ([#2171](https://github.com/matrix-org/matrix-spec/issues/2171), [#2177](https://github.com/matrix-org/matrix-spec/issues/2177), [#2179](https://github.com/matrix-org/matrix-spec/issues/2179))
-- Clarify that clients should replace events with the most recent replacement by `origin_server_ts`. ([#2190](https://github.com/matrix-org/matrix-spec/issues/2190))
-- Fix `/sync` flow referencing incorrect parameter to use with `/messages`. ([#2195](https://github.com/matrix-org/matrix-spec/issues/2195))
-- Clarify wording around the `world_readable` history visibility setting. Contributed by @HarHarLinks. ([#2204](https://github.com/matrix-org/matrix-spec/issues/2204))
-
-
-## Server-Server API
-
-**Backwards Compatible Changes**
-
-- `invite_room_state` and `knock_room_state` now have additional requirements and validation depending on the room version, as per [MSC4311](https://github.com/matrix-org/matrix-spec-proposals/pull/4311). ([#2207](https://github.com/matrix-org/matrix-spec/issues/2207))
-
-
-## Application Service API
-
-No significant changes.
-
-
-## Identity Service API
-
-No significant changes.
-
-
-## Push Gateway API
-
-No significant changes.
-
-
-## Room Versions
-
-**Backwards Compatible Changes**
-
-- Room IDs in room version 12 are now the event ID of the create event with the normal room ID sigil (`!`), as per [MSC4291](https://github.com/matrix-org/matrix-spec-proposals/pull/4291). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- Room creators are formalized in room version 12 and have infinitely high power level, as per [MSC4289](https://github.com/matrix-org/matrix-spec-proposals/pull/4289). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- State Resolution is updated in room version 12 to reduce the opportunity for "state resets", as per [MSC4297](https://github.com/matrix-org/matrix-spec-proposals/pull/4297). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- The default room version is now room version 12, though servers SHOULD keep using room version 11 for a little while, as per [MSC4304](https://github.com/matrix-org/matrix-spec-proposals/pull/4304). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-- Add [room version 12](/rooms/v12) as per [MSC4304](https://github.com/matrix-org/matrix-spec-proposals/pull/4304). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193), [#2199](https://github.com/matrix-org/matrix-spec/issues/2199))
-
-**Spec Clarifications**
-
-- In room versions 1 through 12, an event's `auth_events` have always needed to belong to the same room as per [MSC4307](https://github.com/matrix-org/matrix-spec-proposals/pull/4307). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-
-
-## Appendices
-
-**Backwards Compatible Changes**
-
-- Room IDs can now appear without a domain component in [room version 12](/rooms/v12), as per [MSC4291](https://github.com/matrix-org/matrix-spec-proposals/pull/4291). ([#2193](https://github.com/matrix-org/matrix-spec/issues/2193))
-
-
-## Internal Changes/Tooling
-
-**Backwards Compatible Changes**
-
-- Add "placeholder MSC" process definition. ([#2157](https://github.com/matrix-org/matrix-spec/issues/2157))
-
-**Spec Clarifications**
-
-- Declare the Application Service Registration schema to follow JSON Schema spec 2020-12. ([#2132](https://github.com/matrix-org/matrix-spec/issues/2132))
-- Declare the event schemas to follow JSON Schema spec 2020-12. ([#2132](https://github.com/matrix-org/matrix-spec/issues/2132))
-- Upgrade the docsy theme to version 0.12.0. ([#2160](https://github.com/matrix-org/matrix-spec/issues/2160))
-- GitHub actions are now building the OpenAPI `spec/identity-service-api/api.json` file. ([#2172](https://github.com/matrix-org/matrix-spec/issues/2172))
-- Minor fixes to JSON schemas. ([#2182](https://github.com/matrix-org/matrix-spec/issues/2182))
-- Specify a correct spelling for "display name". ([#2189](https://github.com/matrix-org/matrix-spec/issues/2189))
-- Fix a grammatical typo on the Matrix Spec Process documentation page. ([#2205](https://github.com/matrix-org/matrix-spec/issues/2205))