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Spec Change Proposals

If you are interested in submitting a change to the Matrix Specification, please take note of the following guidelines.

Most changes to the Specification require a formal proposal. Bug fixes, typos, and clarifications to existing behaviour do not need proposals - see the contributing guide for more information on what does and does not need a proposal.

The proposal process involves some technical writing, having it reviewed by everyone, having the proposal being accepted, then actually having your ideas implemented as committed changes to the Specification repository.

Meet the members of the Core Team, a group of individuals tasked with ensuring the spec process is as smooth and painless as possible. Members of the Spec Core Team will do their best to participate in discussion, summarise when things become long-winded, and generally try to act towards the benefit of everyone. As a majority, team members have the ability to change the state of a proposal, and individually have the final say in proposal discussion.

Guiding Principles

Proposals must act to the greater benefit of the entire Matrix ecosystem, rather than benefiting or privileging any single player or subset of players -and must not contain any patent encumbered intellectual property. Members of the Core Team pledge to act as a neutral custodian for Matrix on behalf of the whole ecosystem.

For clarity: the Matrix ecosystem is anyone who uses the Matrix protocol. That includes client users, server admins, client developers, bot developers, bridge and application service developers, users and admins who are indirectly using Matrix via 3rd party networks which happen to be bridged, server developers, room moderators and admins, companies/projects building products or services on Matrix, spec contributors, translators, and those who created it in the first place.

“Greater benefit” could include maximising:

the number of end-users reachable on the open Matrix network
the number of regular users on the Matrix network (e.g. 30-day retained federated users)
the number of online servers in the open federation
the number of developers building on Matrix
the number of independent implementations which use Matrix
the number of bridged end-users reachable on the open Matrix network
the signal-to-noise ratio of the content on the open Matrix network (i.e. minimising spam)
the ability for users to discover content on their terms (empowering them to select what to see and what not to see)
the quality and utility of the Matrix spec (as defined by ease and ability with which a developer can implement spec-compliant clients, servers, bots, bridges, and other integrations without needing to refer to any other external material)

In addition, proposal authors are expected to uphold the following values in their proposed changes to the Matrix protocol:

Supporting the whole long-term ecosystem rather than individual stakeholder gain
Openness rather than proprietary lock-in
Interoperability rather than fragmentation
Cross-platform rather than platform-specific
Collaboration rather than competition
Accessibility rather than elitism
Transparency rather than stealth
Empathy rather than contrariness
Pragmatism rather than perfection
Proof rather than conjecture

Please see MSC1779 for full details of the project’s Guiding Principles.

Technical notes

Proposals must develop Matrix as a layered protocol: with new features building on layers of shared abstractions rather than introducing tight vertical coupling within the stack. This ensures that new features can evolve rapidly by building on existing layers and swapping out old features without impacting the rest of the stack or requiring substantial upgrades to the whole ecosystem. This is critical for Matrix to rapidly evolve and compete effectively with centralised systems, despite being a federated protocol.

For instance, new features should be implemented using the highest layer abstractions possible (e.g. new event types, which layer on top of the existing room semantics, and so don’t even require any API changes). Failing that, the next recourse would be backwards-compatible changes to the next layer down (e.g. room APIs); failing that, considering changes to the format of events or the DAG; etc. It would be a very unusual feature which doesn’t build on the existing infrastructure provided by the spec and instead created new primitives or low level APIs.

Backwards compatibility is very important for Matrix, but not at the expense of hindering the protocol’s evolution. Backwards incompatible changes to endpoints are allowed when no other alternative exists, and must be versioned under a new major release of the API. Backwards incompatible changes to the room algorithm are also allowed when no other alternative exists, and must be versioned under a new version of the room algorithm.

There is sometimes a dilemma over where to include higher level features: for instance, should video conferencing be formalised in the spec, or should it be implemented via widgets? Should reputation systems be specified? Should search engine behaviour be specified?

There is no universal answer to this, but the following guidelines should be applied:

If the feature would benefit the whole Matrix ecosystem and is aligned with the guiding principles above, then it should be supported by the spec.
If the spec already makes the feature possible without changing any of the implementations and spec, then it may not need to be added to the spec.
However, if the best user experience for a feature does require custom implementation behaviour then the behaviour should be defined in the spec such that all implementations may implement it.
However, the spec must never add dependencies on unspecified/nonstandardised 3rd party behaviour.

As a worked example:

Video conferencing is clearly a feature which would benefit the whole ecosystem, and so the spec should find a way to make it happen.
Video conferencing can be achieved by widgets without requiring any compulsory changes to clients nor servers to work, and so could be omitted from the spec.
A better experience could be achieved by embedding Jitsi natively into clients rather than using a widget…
…except that would add a dependency on unspecified/nonstandardised 3rd party behaviour, so must not be added to the spec.

Therefore, our two options in the specific case of video conferencing are either to spec SFU conferencing semantics for WebRTC (or refer to an existing spec for doing so), or to keep it as a widget-based approach (optionally with widget extensions specific for more deeply integrating video conferencing use cases).

As an alternative example: it’s very unlikely that “how to visualise Magnetic Resonance Imaging data over Matrix” would ever be added to the Matrix spec (other than perhaps a custom event type in a wider standardised Matrix event registry) given that the spec’s existing primitives of file transfer and extensible events (MSC1767) give excellent tools for transferring and visualising arbitrary rich data.

Supporting public search engines are likely to not require custom spec features (other than possibly better bulk access APIs), given they can be implemented as clients using the existing CS API. An exception could be API features required by decentralised search infrastructure (avoiding centralisation of power by a centralised search engine).

Features such as reactions, threaded messages, editable messages, spam/abuse/content filtering (and reputation systems), are all features which would clearly benefit the whole Matrix ecosystem, and cannot be implemented in an interoperable way using the current spec; so they necessitate a spec change.

Process

The process for submitting a Matrix Spec Change (MSC) Proposal in detail is as follows:

Create a first draft of your proposal using GitHub-flavored Markdown
- In the document, clearly state the problem being solved, and the possible solutions being proposed for solving it and their respective trade-offs.
- Proposal documents are intended to be as lightweight and flexible as the author desires; there is no formal template; the intention is to iterate as quickly as possible to get to a good design.
- However, a template with suggested headers is available to get you started if necessary.
- Take care in creating your proposal. Specify your intended changes, and give reasoning to back them up. Changes without justification will likely be poorly received by the community.
Fork and make a PR to the matrix-spec-proposals repository. The ID of your PR will become the MSC ID for the lifetime of your proposal.
- The proposal must live in the proposals/ directory with a filename that follows the format 1234-my-new-proposal.md where 1234 is the MSC ID.
- Your PR description must include a link to the rendered Markdown document and a summary of the proposal.
- It is often very helpful to link any related MSCs or matrix-spec issues to give context for the proposal.
- Additionally, please be sure to sign off your proposal PR as per the guidelines listed on CONTRIBUTING.rst.
Gather feedback as widely as possible.
- The aim is to get maximum consensus towards an optimal solution. Sometimes trade-offs are required to meet this goal. Decisions should be made to the benefit of all major use cases.
- A good place to ask for feedback on a specific proposal is #matrix-spec:matrix.org. If preferred, an alternative room can be created and advertised in #matrix-spec:matrix.org. Please also link to the room in your PR description.
- For additional discussion areas, know that #matrix-dev:matrix.org is for developers using existing Matrix APIs, #matrix:matrix.org is for users trying to run Matrix apps (clients & servers) and #matrix-architecture:matrix.org is for cross-cutting discussion of Matrix’s architectural design.
- The point of the spec proposal process is to be collaborative rather than competitive, and to try to solve the problem in question with the optimal set of trade-offs. The author should neutrally gather the various viewpoints and get consensus, but this can sometimes be time-consuming (or the author may be biased), in which case an impartial ‘shepherd’ can be assigned to help guide the proposal through this process instead. A shepherd is typically a neutral party from the Spec Core Team or an experienced member of the community. There is no formal process for assignment. Simply ask for a shepherd to help get your proposal through and one will be assigned based on availability. Having a shepherd is not a requirement for proposal acceptance.
Members of the Spec Core Team and community will review and discuss the PR in the comments and in relevant rooms on Matrix. Discussion outside of GitHub should be summarised in a comment on the PR.
When a member of the Spec Core Team believes that no new discussion points are being made, and the proposal has suitable evidence of working (see implementing a proposal below), they will propose a motion for a final comment period (FCP), along with a disposition of either merge, close or postpone. This FCP is provided to allow a short period of time for any invested party to provide a final objection before a major decision is made. If sufficient reasoning is given, an FCP can be cancelled. It is often preceded by a comment summarising the current state of the discussion, along with reasoning for its occurrence.
A concern can be raised by a Spec Core Team member at any time, which will block an FCP from beginning. An FCP will only begin when 75% of the members of the Spec Core Team agree on its outcome, and all existing concerns have been resolved.
The FCP will then begin and last for 5 days, giving anyone else some time to speak up before it concludes. If sufficient reasoning against the disposition is provided, a member of the Spec Core Team can raise a concern and block FCP from completing. This will not reset or pause the 5 day FCP timer, but FCP will not conclude until all concerns have been resolved. If sufficient change in the MSC is required to resolve those concerns, FCP might be cancelled and reproposed. Once FCP has concluded, the disposition of the FCP will be carried out.
Once the proposal has been accepted and merged, it is time to submit the actual change to the Specification that your proposal reasoned about. This is known as a spec PR. However in order for the spec PR to be accepted, an implementation must be shown to prove that it works well in practice. A link to the implementation should be included in the PR description. In addition, any significant unforeseen changes to the original idea found during this process will warrant another MSC. Any minor, non-fundamental changes are allowed but must be documented in the original proposal document. This ensures that someone reading a proposal in the future doesn’t assume old information that wasn’t merged into the spec.
- Similar to the proposal PR, please sign off the spec PR as per the guidelines on CONTRIBUTING.rst.
Your PR will then be reviewed and hopefully merged on the grounds it is implemented sufficiently. If so, then give yourself a pat on the back knowing you’ve contributed to the Matrix protocol for the benefit of users and developers alike :)

The process for handling proposals is shown visually in the following diagram. Note that the lifetime of a proposal is tracked through the corresponding labels for each stage on the matrix-spec-proposals pull request trackers.

                           +                          +
         Proposals         |          Spec PRs        |  Additional States
         +-------+         |          +------+        |  +---------------+
                           |                          |
 +----------------------+  |         +---------+      |    +-----------+
 |                      |  |         |         |      |    |           |
 |      Proposal        |  |  +------= Spec PR |      |    | Postponed |
 | Drafting and Initial |  |  |      | Missing |      |    |           |
 |  Feedback Gathering  |  |  |      |         |      |    +-----------+
 |                      |  |  |      +----+----+      |
 +----------+-----------+  |  |           |           |    +----------+
            |              |  |           v           |    |          |
            v              |  |  +-----------------+  |    |  Closed  |
  +-------------------+    |  |  |                 |  |    |          |
  |                   |    |  |  | Spec PR Created |  |    +----------+
  |    Proposal PR    |    |  |  |  and In Review  |  |
  |     In Review     |    |  |  |                 |  |
  |                   |    |  |  +--------+--------+  |
  +---------+---------+    |  |           |           |
            |              |  |           v           |
            v              |  |     +-----------+     |
 +----------------------+  |  |     |           |     |
 |                      |  |  |     |  Spec PR  |     |
 |    Proposed Final    |  |  |     |  Merged!  |     |
 |    Comment Period    |  |  |     |           |     |
 |                      |  |  |     +-----------+     |
 +----------+-----------+  |  |                       |
            |              |  |                       |
            v              |  |                       |
 +----------------------+  |  |                       |
 |                      |  |  |                       |
 | Final Comment Period |  |  |                       |
 |                      |  |  |                       |
 +----------+-----------+  |  |                       |
            |              |  |                       |
            v              |  |                       |
 +----------------------+  |  |                       |
 |                      |  |  |                       |
 | Final Comment Period |  |  |                       |
 |       Complete       |  |  |                       |
 |                      |  |  |                       |
 +----------+-----------+  |  |                       |
            |              |  |                       |
            +-----------------+                       |
                           |                          |
                           +                          +

Lifetime States

Note: All labels are to be placed on the proposal PR.

Name	GitHub Label	Description
Proposal Drafting and Feedback	Draft pull request	A proposal document which is still work-in-progress but is being shared to incorporate feedback. Please prefix your proposal’s title with `[WIP]` to make it easier for reviewers to skim their notifications list.
Proposal In Review	No label	A proposal document which is now ready and waiting for review by the Spec Core Team and community
Proposed Final Comment Period	proposed-final-comment-period	Currently awaiting signoff of a 75% majority of team members in order to enter the final comment period
Final Comment Period	final-comment-period	A proposal document which has reached final comment period either for merge, closure or postponement
Final Comment Period Complete	finished-final-comment-period	The final comment period has been completed. Waiting for a demonstration implementation
Spec PR Missing	spec-pr-missing	The proposal has been agreed, and proven with a demonstration implementation. Waiting for a PR against the Spec
Spec PR In Review	spec-pr-in-review	The spec PR has been written, and is currently under review
Spec PR Merged	merged	A proposal with a sufficient working implementation and whose Spec PR has been merged!
Postponed	proposal-postponed	A proposal that is temporarily blocked or a feature that may not be useful currently but perhaps sometime in the future
Abandoned	abandoned	A proposal where the author/shepherd is not responsive
Obsolete	obsolete	A proposal which has been made obsolete by another proposal or decision elsewhere.

Name	GitHub Label	Description
Core	kind:core	Important for the protocol’s success.
Feature	kind:feature	Nice to have additions to the spec.
Maintenance	kind:maintenance	Fixes or clarifies existing spec.

Implementing a proposal

As part of the proposal process the Spec Core Team will require evidence of the MSC working in order for it to move into FCP. This can usually be a branch/pull request to whichever implementation of choice that proves the MSC works in practice, though in some cases the MSC itself will be small enough to be considered proven. Implementations do not need to be merged or released, but must be of sufficient quality to show that the MSC works. Where it’s unclear if an MSC will require an implementation proof, ask in #matrix-spec:matrix.org. Proposals may require both server-side and client-side implementations.

Proposals that have not yet been implemented will have the needs-implementation label. After an implementation has been made, add a comment in the GitHub issue indicating so. After an implementation has been made, we will check it to verify that it implements the MSC. Proposals that have implementations that have not yet been checked will have the implementation-needs-checking label.

Early release of an MSC/idea

To help facilitate early releases of software dependent on a spec release, implementations are required to use the following process to ensure that the official Matrix namespace is not cluttered with development or testing data.

Note: Unreleased implementations (including proofs-of-concept demonstrating that a particular MSC works) do not have to follow this process.

Have an idea for a feature.
Implement the feature using unstable endpoints, vendor prefixes, and unstable feature flags as appropriate.
- When using unstable endpoints, they MUST include a vendor prefix. For example: /_matrix/client/unstable/com.example/login. Vendor prefixes throughout Matrix always use the Java package naming convention. The MSC for the feature should identify which preferred vendor prefix is to be used by early adopters.
- Note that unstable namespaces do not automatically inherit endpoints from stable namespaces: for example, the fact that /_matrix/client/r0/sync exists does not imply that /_matrix/client/unstable/com.example/sync exists.
- If the client needs to be sure the server supports the feature, an unstable feature flag that MUST be vendor prefixed is to be used. This kind of flag shows up in the unstable_features section of /versions as, for example, com.example.new_login. The MSC for the feature should identify which preferred feature flag is to be used by early adopters.
- When using this approach correctly, the implementation can ship/release the feature at any time, so long as the implementation is able to accept the technical debt that results from needing to provide adequate backwards and forwards compatibility. The implementation MUST support the flag (and server-side implementation) disappearing and be generally safe for users. Note that implementations early in the MSC review process may also be required to provide backwards compatibility with earlier editions of the proposal.
- If the implementation cannot support the technical debt (or if it’s impossible to provide forwards/backwards compatibility - e.g. a user authentication change which can’t be safely rolled back), the implementation should not attempt to implement the feature and should instead wait for a spec release.
- If at any point after early release, the idea changes in a backwards-incompatible way, the feature flag should also change so that implementations can adapt as needed.
In parallel, or ahead of implementation, open an MSC and solicit review per above.
Before FCP can be called, the Spec Core Team will require evidence of the MSC working as proposed. A typical example of this is an implementation of the MSC, though the implementation does not need to be shipped anywhere and can therefore avoid the forwards/backwards compatibility concerns mentioned here.
The FCP process is completed, and assuming nothing is flagged the MSC lands.
Implementations can now switch to using stable prefixes (for example, for an endpoint, moving from /unstable/org.matrix.mscxxxx/frobnicate to /v1/frobnicate), assuming that the change is backwards compatible with older implementations. In the rare occasion where backwards compatibility is not possible without a new spec release, implementations should continue to use unstable prefixes.
A spec PR is written to incorporate the changes into Matrix.
A spec release happens.
A transition period of about 2 months starts immediately after the spec release, before implementations start to encourage other implementations to switch to stable endpoints. For example, a server implementation should start asking client implementations to support the stable endpoints 2 months after the spec release, if they haven’t already. The same applies in the reverse: if clients cannot switch to stable prefixes because server implementations haven’t started supporting the new spec release, some noise should be raised in the general direction of the implementation.

MSCs MUST still describe what the stable endpoints/feature looks like with a note towards the bottom for what the unstable feature flag/prefixes are. For example, an MSC would propose /_matrix/client/r0/new/endpoint, not /_matrix/client/unstable/ com.example/new/endpoint.

In summary:

Implementations MUST NOT use stable endpoints before the MSC has completed FCP. Once that has occurred, implementations are allowed to use stable endpoints, but are not required to.
Implementations are able to ship features that are exposed to users by default before an MSC has been merged to the spec, provided they follow the process above.
Implementations SHOULD be wary of the technical debt they are incurring by moving faster than the spec.
The vendor prefix is chosen by the developer of the feature, using the Java package naming convention. The foundation’s preferred vendor prefix is org.matrix.
The vendor prefixes, unstable feature flags, and unstable endpoints should be included in the MSC, though the MSC MUST be written in a way that proposes new stable endpoints. Typically this is solved by a small table at the bottom mapping the various values from stable to unstable.

Proposal Tracking

This is a living document generated from the list of proposals on the issue and pull request trackers of the matrix-spec-proposals repo.

We use labels and some metadata in MSC PR descriptions to generate this page. Labels are assigned by the Spec Core Team whilst triaging the proposals based on those which exist in the matrix-spec-proposals repo already.

It is worth mentioning that a previous version of the MSC process used a mixture of GitHub issues and PRs, leading to some MSC numbers deriving from GitHub issue IDs instead. A useful feature of GitHub is that it does automatically resolve to an issue, if an issue ID is placed in a pull URL. This means that https://github.com/matrix-org/matrix-spec-proposals/pull/$MSCID will correctly resolve to the desired MSC, whether it started as an issue or a PR.

Other metadata:

The MSC number is taken from the GitHub Pull Request ID. This is carried for the lifetime of the proposal. These IDs do not necessary represent a chronological order.
The GitHub PR title will act as the MSC’s title.
Please link to the spec PR (if any) by adding a “PRs: #1234” line in the issue description.
The creation date is taken from the GitHub PR, but can be overridden by adding a “Date: yyyy-mm-dd” line in the PR description.
Updated Date is taken from GitHub.
Author is the creator of the MSC PR, but can be overridden by adding a “Author: @username” line in the body of the issue description. Please make sure @username is a GitHub user (include the @!)
A shepherd can be assigned by adding a “Shepherd: @username” line in the issue description. Again, make sure this is a real GitHub user.

Work In Progress

MSC	Title	Created at	Updated at	Author
4244	[WIP] MSC4244: RFC 9420 MLS for Matrix	2024-12-21	2024-12-21	@turt2live
4243	[WIP] Placeholder stub	2024-12-17	2024-12-17	@kegsay
4242	[WIP] Placeholder stub	2024-12-17	2024-12-17	@kegsay
4232	MSC4232: Attribute-Based Access Control (ABAC)	2024-11-27	2024-11-27	@turt2live
4216	MSC4216: Set Maximum Allowed Tags	2024-10-17	2024-10-24	@lamoboos223
4196	MSC4196: MatrixRTC voice and video conferencing application `m.call`	2024-09-19	2024-12-17	@hughns
4195	MSC4195: MatrixRTC using LiveKit backend	2024-09-16	2024-12-17	@hughns
4192	MSC4192: Comparison of proposals for ignoring invites	2024-09-13	2024-11-12	@Johennes
4191	MSC4191: Account management deep-linking	2024-09-12	2024-09-12	@sandhose
4179	MSC4179: Moderation event hiding	2024-08-19	2024-09-14	@tranquillity-codes
4169	MSC4169: Backwards-compatible redaction sending using `/send`	2024-07-07	2024-07-07	@tulir
4157	MSC4157: Futures (widget api)	2024-06-19	2024-08-01	@toger5
4152	[WIP] MSC4152: Room labeling and filtering	2024-06-05	2024-06-10	@turt2live
4145	MSC4145: Simple verified accounts	2024-05-14	2024-05-30	@turt2live
4143	MSC4143: MatrixRTC	2024-05-10	2024-12-17	@toger5
4139	MSC4139: Bot buttons & conversations	2024-05-06	2024-05-06	@turt2live
4109	MSC4109: Appservices & soft-failed events	2024-02-23	2024-02-23	@turt2live
4107	MSC4107: Feature-focused versioning	2024-02-19	2024-02-23	@turt2live
4106	MSC4106: Join as Muted	2024-02-19	2024-02-27	@FSG-Cat
4104	MSC4104: Auth Lock: Soft-failure-be-gone!	2024-02-19	2024-11-12	@Gnuxie
4101	MSC4101: Hashes for unencrypted media	2024-02-15	2024-02-20	@turt2live
4100	MSC4100: Scoped signing keys	2024-02-14	2024-02-15	@turt2live
4099	MSC4099: Participation based authorization for servers in the Matrix DAG	2024-02-12	2024-02-15	@Gnuxie
4097	[WIP] MSC4097: Interactions between media redirection and authentication	2024-02-06	2024-07-29	@turt2live
4094	[WIP] MSC4094: Sync Server and Client Times with endpoint	2024-01-29	2024-08-05	@toger5
4089	MSC4089: Delivery Receipts	2024-01-12	2024-05-30	@turt2live
4086	MSC4086: Event media reference counting	2023-12-23	2023-12-26	@AndrewRyanChama
4080	MSC4080: Cryptographic Identities (Client-Owned Identities)	2023-11-15	2024-05-29	@devonh
4060	MSC4060: Accept room rules before speaking	2023-10-14	2023-11-16	@turt2live
4059	[WIP] MSC4059: Mutable event content	2023-10-14	2024-05-30	@turt2live
4058	[WIP] MSC4058: Additive events	2023-10-14	2023-10-14	@turt2live
4057	MSC4057: Static Room Directory	2023-09-22	2023-09-23	@networkException
4056	MSC4056: Role-Based Access Control (mk II)	2023-09-15	2024-12-15	@turt2live
4051	[WIP] MSC4051: Using the create event as the room ID	2023-09-03	2024-07-02	@turt2live
4049	MSC4049: Sending events as a server or room	2023-08-24	2024-05-30	@turt2live
4047	MSC4047: Send Keys	2023-08-23	2024-05-30	@turt2live
4046	MSC4046: Make & send PDU endpoints	2023-08-22	2023-08-23	@turt2live
4044	MSC4044: Enforcing user ID grammar in rooms	2023-08-12	2023-08-18	@turt2live
4038	MSC4038: Key backup for MLS	2023-07-19	2023-07-19	@uhoreg
4031	MSC4031: Pre-generating invites and room invite codes	2023-06-18	2023-06-29	@mdnwvn
4029	MSC4029: [WIP] Fixing `X-Matrix` request authentication	2023-06-14	2024-06-10	@turt2live
4021	MSC4021: Archive client controls	2023-05-28	2023-07-05	@jonaharagon
4011	MSC4011: Thumbnail media negotiation	2023-05-04	2023-12-16	@clokep, @Half-Shot
4002	MSC4002: Walkie talkie	2023-04-25	2023-04-28	@tajo48
3995	MSC3995: [WIP] Linearized Matrix	2023-04-10	2023-08-19	@turt2live
3994	MSC3994: Display why an event caused a notification	2023-04-06	2023-04-11	@kerryarchibald
3964	MSC3964: Notifications for room tags	2023-02-03	2023-02-03	@clokep
3956	[WIP] MSC3956: Extensible Events - Encrypted Events	2023-01-13	2023-04-18	@turt2live
3953	MSC3953: Server capability DAG	2023-01-07	2023-01-08	@Gnuxie
3948	MSC3948: Repository room for Thirdroom	2022-12-14	2023-06-28	@ajbura
3944	MSC3944: Dropping stale send-to-device messages	2022-12-06	2023-02-27	@uhoreg
3935	MSC3935: Cute Events against social distancing	2022-11-16	2024-04-01	@TheOneWithTheBraid
3909	MSC3909: Membership based mutes	2022-10-13	2024-07-12	@FSG-Cat
3902	MSC3902: Faster remote room joins over federation (overview)	2022-10-03	2024-06-29	@richvdh
3901	MSC3901: Deleting state	2022-09-28	2024-09-01	@andybalaam
3898	[WIP] MSC3898: Native Matrix VoIP signalling for cascaded foci (SFUs, MCUs...)	2022-09-25	2023-01-03	@SimonBrandner
3895	MSC3895: Federation API Behaviour of Partial-State Resident Servers	2022-09-22	2022-09-30	@reivilibre
3883	MSC3883: Fundamental state changes	2022-09-06	2022-09-09	@timokoesters
3872	MSC3872: Order of rooms in Spaces	2022-08-20	2022-08-25	@amytimed
3868	[WIP] MSC3868: Room Contribution	2022-08-15	2022-08-18	@jae1911
3865	[WIP] MSC3865: User-given attributes for users	2022-08-09	2024-07-17	@Zocker1999NET
3864	[WIP] MSC3864: User-given attributes for rooms	2022-08-07	2024-03-31	@Zocker1999NET
3861	MSC3861: Next-generation auth for Matrix, based on OAuth 2.0/OIDC	2022-08-04	2024-12-14	@hughns
3849	MSC3849: Observations and Reinforcement	2022-07-19	2024-05-21	@Gnuxie
3842	[WIP] MSC3842: Placeholder for power levels & extensible events	2022-07-02	2023-07-25	@turt2live
3839	MSC3839: primary-identity-as-key	2022-06-26	2022-12-15	@zander
3815	[WIP] MSC3815: 3D Worlds	2022-05-13	2023-06-28	@robertlong
3814	[WIP] MSC3814: Dehydrated devices with SSSS	2022-05-12	2024-12-16	@uhoreg
3813	MSC3813: Obfuscated events	2022-05-10	2022-07-21	@tusooa
3775	MSC3775: Markup Locations for Audiovisual Media	2022-04-17	2022-09-16	@gleachkr
3761	MSC3761: State event change control	2022-03-31	2022-04-05	@turt2live
3755	MSC3755: Member pronouns	2022-03-18	2023-06-02	@Gnuxie
3752	MSC3752: Markup locations for text	2022-03-09	2022-08-09	@gleachkr
3726	[WIP] MSC3726: Safer Password-based Authentication with BS-SPEKE	2022-02-15	2022-03-27	@cvwright
3662	[WIP] MSC3662: Allow Widgets to share user mxids to the client	2022-01-20	2022-01-20	@Half-Shot
3647	[WIP] MSC3647: Bring Your Own Bridge - Decentralising Bridges	2022-01-14	2022-01-23	@ShadowJonathan
3639	[WIP] MSC3639: Matrix for the social media use case	2022-01-12	2023-01-02	@henri2h
3592	MSC3592: Markup locations for PDF documents	2021-12-23	2022-05-18	@gleachkr
3414	[WIP] MSC3414: Encrypted state events	2021-09-27	2023-06-05	@turt2live
3385	[WIP] MSC3385: Bulk small improvements to room upgrades	2021-09-07	2022-01-21	@turt2live
3361	[WIP] MSC3361: Opportunistic Direct Push	2021-08-25	2023-03-03	@lukaslihotzki
3359	[WIP] MSC3359: Delayed Push	2021-08-25	2023-07-14	@jcgruenhage
3269	MSC3269: An error code for busy servers	2021-07-06	2021-08-30	@Yoric
3262	[WIP] MSC3262 aPAKE authentication	2021-07-02	2022-07-26	@mvgorcum
3219	[WIP] MSC3219: Space Flair	2021-05-27	2022-10-21	@turt2live
3215	Draft: MSC3215: Aristotle - Moderation in all things	2021-05-24	2024-05-20	@Yoric
3192	MSC3192: Batch state endpoint	2021-05-12	2024-05-20	@clokep
3189	MSC3189: Per-room/per-space profiles	2021-05-11	2023-04-15	@robintown
3184	MSC3184: Challenges Messages	2021-05-10	2024-09-25	@BillCarsonFr
3089	MSC3089: File tree structures	2021-04-02	2021-09-10	@turt2live
3088	MSC3088: Room subtyping	2021-04-01	2022-01-22	@turt2live
3062	MSC3062: Bot verification	2021-03-12	2024-02-23	@uhoreg
3032	MSC3032: Thoughts on updating presence	2021-02-25	2021-08-30	@dbkr
3020	MSC3020: WIP proposal for better supporting private federations	2021-02-21	2024-01-15	@ara4n
2957	[WIP] MSC2957: Cryptographically Concealed Credentials	2021-01-11	2022-03-28	@uhoreg
2923	MSC2923: Connect Matrix room to another Matrix room	2020-12-22	2023-06-29	@MadLittleMods
2883	MSC2883: [WIP] Matrix-flavoured MLS	2020-11-27	2024-07-26	@uhoreg
2882	MSC2882: [WIP] Tempered Transitive Trust	2020-11-27	2022-10-05	@uhoreg
2812	[WIP] MSC2812: Role-based power/permissions	2020-10-08	2023-09-15	@turt2live
2802	[WIP] MSC2802: Full Room Abstraction	2020-10-05	2021-08-30	@ShadowJonathan
2787	MSC2787: Portable Identities	2020-09-23	2024-10-30	@neilalexander
2783	MSC2783: Homeserver Migration Data Format	2020-09-19	2024-09-11	@ShadowJonathan
2745	[WIP] MSC2745 : Add hCaptcha as captcha provider	2020-08-20	2022-03-01	@Morpheus0x
2706	[WIP] MSC2706: IPFS as a media repository for Matrix	2020-07-28	2023-06-04	@turt2live
2438	[WIP] MSC2438: Local and Federated User Erasure Requests	2020-02-19	2023-06-02	@anoadragon453
2370	[WIP] MSC2370: Resolve URL API	2019-11-29	2021-08-30	@uhoreg
2306	[WIP] MSC2306: Removing MSISDN password resets	2019-09-24	2022-03-01	@turt2live
2301	[WIP] MSC2301: server info endpoint	2019-09-23	2021-08-30	@ara4n
2300	[WIP] MSC2300: /ping endpoint	2019-09-23	2021-10-15	@ara4n
2271	[WIP] MSC2271 TOTP 2FA login	2019-08-31	2021-08-30	@ara4n
1956	[WIP] MSC1956: Integrations API (base)	2019-04-08	2023-05-02	@turt2live
1781	[WIP] MSC1781: Proposal for associations for DIDs and DID names	2019-01-07	2022-12-13	@friedger
1780	[WIP] MSC1780: Add DIDs and DID names as admin accounts to HS	2019-01-07	2021-08-30	@friedger
1769	WIPish: MSC1769: Extensible profiles as rooms	2019-01-03	2024-09-25	@ara4n
1768	[WIP] MSC1768: Proposal to authenticate with public keys	2019-01-03	2021-08-30	@friedger
1762	[WIP] MSC1762: Support user-owned identifiers as new 3PID type	2018-12-28	2021-08-30	@friedger
1607	MSC1607: Proposal for room alias grammar	2018-08-29	2021-08-30	@richvdh
1228	[WIP] MSC1228: Removing MXIDs from events	2018-05-10	2024-06-05	@benparsons

Proposal In Review

MSC	Title	Created at	Updated at	Docs	Author	Shepherd
4246	MSC4246: Sending to-device messages as/to a server	2024-12-21	2024-12-21		@turt2live
4245	MSC4245: Immutable encryption algorithm	2024-12-21	2024-12-21		@turt2live
4239	MSC4239: Room version 11 as the default room version	2024-12-10	2024-12-10		@turt2live
4238	MSC4238: Pinned events read marker	2024-12-10	2024-12-11		@ajbura
4235	MSC4235: `via` query param for hierarchy endpoint	2024-12-02	2024-12-09		@ajbura
4234	MSC4234: Update app badge counts when rooms are read	2024-11-29	2024-12-02		@ara4n
4233	MSC4233: Remembering which server a user knocked through	2024-11-28	2024-11-29		@turt2live
4230	MSC4230: Flag for animated images	2024-11-21	2024-12-06		@dbkr
4228	MSC4228: Search Redirection	2024-11-18	2024-11-28		@turt2live
4227	MSC4227: Audio based quick login	2024-11-15	2024-11-19		@albertotirla
4226	MSC4226: Reports as rooms	2024-11-12	2024-11-13		@Gnuxie
4224	MSC4224: CBOR Serialization	2024-11-06	2024-11-22		@Saiv46
4223	MSC4223: Error code for disallowing threepid unbinding	2024-10-30	2024-10-30		@turt2live
4222	MSC4222: Adding `state_after` to sync v2	2024-10-29	2024-11-06		@erikjohnston
4221	MSC4221: Room Banners	2024-10-26	2024-11-06		@everypizza1
4220	MSC4220: Local call rejection (m.call.reject_locally)	2024-10-23	2024-10-28		@ara4n
4218	MSC4218: Improving performance of profile changes	2024-10-20	2024-10-31		@kegsay
4211	MSC4211: WebXDC on Matrix	2024-10-05	2024-11-16		@seija-amanojaku
4210	MSC4210: Remove legacy mentions	2024-10-03	2024-10-26		@tulir
4209	MSC4209: Updating endpoints in-place	2024-10-02	2024-10-08		@turt2live
4208	MSC4208: Adding User-Defined Custom Fields to User Global Profiles	2024-10-02	2024-10-08		@tcpipuk
4207	MSC4207: Media identifier moderation policy	2024-10-02	2024-10-08		@Gnuxie
4206	MSC4206: Moderation policy auditing and context	2024-10-02	2024-10-08		@Gnuxie
4205	MSC4205: Hashed moderation policy entities	2024-10-02	2024-10-08		@Gnuxie
4204	MSC4204: `m.takedown` moderation policy recommendation	2024-10-02	2024-10-08		@Gnuxie
4203	MSC4203: Sending to-device events to appservices	2024-09-28	2024-09-30		@tulir
4202	MSC4202: Reporting User Profiles	2024-09-26	2024-10-01		@tcpipuk
4201	MSC4201: Profiles as Rooms v2	2024-09-25	2024-10-02		@FSG-Cat
4198	MSC4198: Usage of OIDC login_hint	2024-09-24	2024-11-18		@tonkku107
4197	MSC4197: Copy Paste Hints	2024-09-22	2024-09-26		@anoadragon453
4194	MSC4194: Batch redaction of events by sender within a room (including soft failed events)	2024-09-15	2024-09-30		@Gnuxie
4193	MSC4193: Spoilers on Media	2024-09-15	2024-09-25		@everypizza1
4190	MSC4190: Device management for application services	2024-09-12	2024-12-02		@sandhose
4188	MSC4188: Handling HTTP 410 Gone Status in Matrix Server Discovery	2024-09-04	2024-09-23		@tcpipuk
4186	MSC4186: Simplified Sliding Sync	2024-08-30	2024-12-16		@erikjohnston
4185	MSC4185: Event Visibility API	2024-08-29	2024-12-16		@tadzik
4184	MSC4184: Dynamic Notification Suppression	2024-08-28	2024-08-30		@turt2live
4177	MSC4177: Add upload location hints proposal	2024-08-13	2024-08-26		@Fizzadar
4176	MSC4176: Translatable Errors	2024-08-13	2024-08-14		@turt2live
4175	MSC4175: Profile field for user time zone	2024-08-05	2024-09-10		@clokep
4174	MSC4174: webpush push kind	2024-08-01	2024-12-13		@p1gp1g
4173	MSC4173: test pusher	2024-07-31	2024-08-01		@p1gp1g
4171	MSC4171: Service members	2024-07-19	2024-11-01		@tulir
4168	MSC4168: Update `m.space.*` state on room upgrade	2024-07-06	2024-07-12		@Kladki
4167	MSC4167: Copy bans on room upgrade	2024-07-06	2024-07-12		@Kladki
4166	MSC4166: Specify `/turnServer` response when no TURN servers are available	2024-07-06	2024-09-02		@Kladki
4165	MSC4165: Remove own power level on deactivation	2024-07-06	2024-09-30		@Kladki
4164	MSC4164: Leave all rooms on deactivation	2024-07-06	2024-08-28		@Kladki
4162	MSC4162: One-Time Key Reset Endpoint	2024-07-02	2024-07-09		@kegsay
4161	MSC4161: Crypto terminology for non-technical users	2024-06-27	2024-12-17		@andybalaam
4155	MSC4155: Invite filtering	2024-06-13	2024-10-02		@Johennes
4154	MSC4154: Request max body size	2024-06-11	2024-06-15		@turt2live
4153	MSC4153: Exclude non-cross-signed devices	2024-06-10	2024-11-23		@uhoreg
4150	MSC4150: m.allow recommendation for moderation policy lists	2024-06-04	2024-07-24		@Johennes
4149	MSC4149: Update CSP Directives for Media Repository	2024-06-04	2024-09-04		@tcpipuk
4148	MSC4148: Permitting HTTP(S) URLs for SSO IdP icons	2024-05-29	2024-12-11		@turt2live
4146	MSC4146: Shared Message Drafts	2024-05-23	2024-07-31		@cyrneko
4144	MSC4144: Per-message profiles	2024-05-10	2024-11-25		@tulir
4142	MSC4142: Remove unintentional intentional mentions in replies	2024-05-09	2024-11-10		@tulir
4141	MSC4141: Time based notification filtering	2024-05-08	2024-06-22		@hanadi92
4140	MSC4140: Cancellable delayed events	2024-05-07	2024-10-22		@toger5
4136	MSC4136: Shared retry hints	2024-04-26	2024-04-30		@ara4n
4133	MSC4133: Extending User Profile API with Key:Value Pairs	2024-04-19	2024-12-20		@tcpipuk
4131	MSC4131: Handling `m.room.encryption` events	2024-04-17	2024-04-23		@uhoreg
4128	MSC4128: Error on invalid auth where it is optional	2024-04-11	2024-04-21		@Kladki
4127	MSC4127: Removal of query string auth	2024-04-10	2024-04-12		@turt2live
4125	MSC4125: Specify servers to join via for federated invites	2024-04-09	2024-04-10		@Kladki
4124	MSC4124: Simple Server Authorization	2024-04-09	2024-04-14		@Gnuxie
4121	MSC4121: `m.role.moderator` `/.well-known/matrix/support` role.	2024-03-22	2024-06-01		@FSG-Cat
4120	MSC4120: Allow `HEAD` on `/download`	2024-03-21	2024-05-03		@turt2live
4119	MSC4119: Voluntary content flagging	2024-03-13	2024-09-01		@turt2live
4117	MSC4117: Reinstating Events (Reversible Redactions)	2024-03-04	2024-03-04		@turt2live
4114	MSC4114: Matrix as a password manager	2024-02-24	2024-06-06		@Johennes
4113	MSC4113: Image hashes in Policy Lists	2024-02-24	2024-02-24		@MTRNord
4110	MSC4110: Fewer Features	2024-02-23	2024-03-15		@cloudrac3r
4108	MSC4108: Mechanism to allow OIDC sign in and E2EE set up via QR code	2024-02-22	2024-11-13		@hughns
4103	MSC4103: Make threaded read receipts opt-in in /sync	2024-02-15	2024-02-20		@ara4n
4102	MSC4102: Clarifying precedence in threaded and unthreaded read receipts in EDUs	2024-02-15	2024-02-16		@kegsay
4098	MSC4098: Use the SCIM protocol for provisioning	2024-02-09	2024-08-15		@azmeuk
4096	MSC4096: Proposal to make forceTurn option configurable server-side	2024-02-06	2024-02-06		@raphaelbadawi
4095	MSC4095: Bundled URL previews	2024-01-31	2024-11-21		@tulir
4092	MSC4092: Enforce tests around sensitive parts of the specification	2024-01-23	2024-01-24		@kegsay
4084	MSC4084: Improving security of MSC2244 (Mass redactions)	2023-12-18	2024-03-09		@turt2live
4083	MSC4083: Delta-compressed E2EE file transfers	2023-12-16	2023-12-27		@ara4n
4081	MSC4081: Eagerly sharing fallback keys with federated servers	2023-11-21	2024-07-12		@kegsay
4079	MSC4079: Server-Defined Client Landing Pages	2023-11-14	2023-11-21		@williamkray
4078	MSC4078: Transparent pusher creation	2023-11-14	2023-12-21		@stefanceriu
4076	MSC4076: Let E2EE clients calculate app badge counts themselves (disable_badge_count)	2023-11-12	2024-12-17		@ara4n
4075	MSC4075: MatrixRTC Call Ringing	2023-11-08	2024-12-17		@toger5
4074	MSC4074: Server side annotation aggregation	2023-11-07	2024-06-27		@dihydrogenmonoxide16
4073	MSC4073: Shepherd teams	2023-11-07	2024-05-13		@joepie91
4071	MSC4071: Pagination Token Headers	2023-10-29	2024-01-24		@Fizzadar
4069	MSC4069: Inhibit profile propagation	2023-10-23	2024-12-11		@turt2live
4062	MSC4062: Add a new push rule tweak to disable email notification	2023-10-20	2023-10-23		@giomfo
4053	MSC4053: Extensible Events - Mentions mixin	2023-09-07	2023-09-08		@clokep
4050	MSC4050: MXID verification	2023-09-02	2024-01-24		@jucktnich
4048	MSC4048: Authenticated key backup	2023-08-23	2023-11-23		@uhoreg
4045	MSC4045: Deprecating the use of IP addresses in server names	2023-08-12	2023-09-27		@turt2live
4043	MSC4043: Presence Override API	2023-08-10	2024-02-19		@FSG-Cat
4042	MSC4042: Disabled Presence State	2023-08-10	2023-09-15		@FSG-Cat
4039	MSC4039: Access the Content repository with the Widget API	2023-07-24	2024-12-09		@dhenneke
4036	MSC4036: Room organization by promoting threads	2023-07-13	2023-10-17		@C0ffeeCode
4034	MSC4034: Media limits	2023-07-10	2023-07-18		@gitsper
4033	MSC4033: Explicit ordering of events for receipts	2023-07-04	2024-02-13		@andybalaam
4032	MSC4032: Asset Collections	2023-06-28	2023-11-27		@robertlong
4030	MSC4030: Progressive image in Matrix	2023-06-14	2024-08-28		@ru-ka
4028	MSC4028: Push all encrypted events except for muted rooms	2023-06-13	2024-01-10		@giomfo
4027	MSC4027: Propose method of specifying custom images in reactions	2023-06-10	2024-04-15		@sumnerevans
4023	MSC4023: Thread ID for 2nd order-relation	2023-05-31	2023-12-06		@germain-gg
4020	MSC4020: Room model configuration	2023-05-25	2023-05-25		@turt2live
4019	MSC4019: Encrypted event relationships	2023-05-20	2024-07-05		@tusooa
4016	MSC4016: Streaming E2EE file transfers with random access	2023-05-14	2024-10-23		@ara4n
4015	MSC4015: Voluntary Bot indicators	2023-05-14	2024-01-24		@MTRNord
4014	MSC4014: Pseudonymous Identities	2023-05-10	2023-11-14		@kegsay
4013	MSC4013: Poll history cache	2023-05-10	2023-11-29		@alfogrillo
4006	MSC4006: "completed elsewhere" hangup reason.	2023-05-02	2023-05-05		@dbkr
4005	MSC4005: Explicit read receipts for sent events	2023-05-01	2023-08-04		@bradtgmurray
4004	MSC4004: unified view of identity service	2023-04-26	2023-12-06		@guimard
4003	MSC4003: Semantic table attributes	2023-04-25	2024-01-12		@AndrewKvalheim
4001	MSC4001: Return start of room state at context endpoint	2023-04-21	2023-04-26		@BramvdnHeuvel
4000	MSC4000: Forwards fill (`/backfill` forwards)	2023-04-14	2023-04-19		@MadLittleMods
3999	MSC3999: Add causal parameter to `/timestamp_to_event`	2023-04-14	2024-03-16		@MadLittleMods
3998	MSC3998: Add timestamp massaging to `/join` and `/knock`	2023-04-13	2023-04-27		@MadLittleMods
3997	MSC3997: Add timestamp massaging to `/createRoom`	2023-04-13	2023-04-13		@MadLittleMods
3996	MSC3996: Encrypted mentions-only rooms.	2023-04-13	2023-06-22		@clokep
3993	MSC3993: Room takeover	2023-04-05	2024-05-09		@jaller94
3991	MSC3991: Power level up! Taking the room to new heights	2023-04-04	2023-04-14		@MadLittleMods
3985	MSC3985: Break-out rooms	2023-03-27	2024-11-29		@SimonBrandner
3984	MSC3984: Sending key queries to appservices	2023-03-24	2023-06-01		@turt2live
3983	MSC3983: Sending One-Time Key (OTK) claims to appservices	2023-03-23	2023-09-20		@turt2live
3982	MSC3982: Limit maximum number of events sent to an AS	2023-03-21	2023-04-03		@Half-Shot
3979	MSC3979: Revised feature profiles	2023-03-15	2023-03-16		@uhoreg
3977	MSC3977: Matrix as a Messaging Framework (IETF/MIMI)	2023-03-13	2023-03-13		@turt2live
3975	MSC3975: rel_type for Replies	2023-03-08	2023-03-27		@imbev
3973	MSC3973: Search users in the user directory with the Widget API	2023-03-01	2023-03-16		@dhenneke
3972	MSC3972: Lexicographical strings as an ordering mechanism	2023-02-26	2023-03-02		@Dominaezzz
3971	MSC3971: Sharing image packs	2023-02-25	2023-03-11		@AndrewRyanChama
3963	MSC3963: Oblivious Matrix over HTTPS	2023-02-03	2023-11-22		@ghost-amnesiac
3961	MSC3961: Sliding Sync Extension: Typing Notifications	2023-01-30	2023-03-31		@kegsay
3960	MSC3960: Sliding Sync Extension: Receipts	2023-01-30	2024-08-06		@kegsay
3959	MSC3959: Sliding Sync Extension: Account Data	2023-01-30	2023-06-06		@kegsay
3955	MSC3955: Extensible Events - Automated event mixin (notices)	2023-01-13	2023-11-30		@turt2live
3954	MSC3954: Extensible Events - Text Emotes	2023-01-13	2023-11-29		@turt2live
3949	MSC3949: Power Level Tags	2022-12-14	2023-04-23		@ajbura
3947	MSC3947: Allow Clients to Request Searching the User Directory Constrained to Only Homeserver-Local Users	2022-12-11	2022-12-14		@marcusmueller
3946	MSC3946: Dynamic room predecessor	2022-12-09	2023-04-12		@MadLittleMods
3934	MSC3934: Bulk push rules change endpoint	2022-11-15	2022-12-12		@turt2live
3933	MSC3933: Core push rules for Extensible Events	2022-11-15	2023-01-17		@turt2live
3932	MSC3932: Extensible events room version push rule feature flag	2022-11-15	2023-02-28		@turt2live
3931	MSC3931: Push rule condition for room version features	2022-11-15	2022-11-15		@turt2live
3927	MSC3927: Extensible Events - Audio	2022-11-13	2023-04-18		@turt2live
3926	MSC3926: Disable server-default notifications for bot users by default	2022-11-08	2022-11-10		@Half-Shot
3922	MSC3922: Removing SRV records from homeserver discovery	2022-11-01	2024-07-07		@turt2live
3919	MSC3919: Matrix Message Format (IETF/MIMI)	2022-10-28	2022-10-28		@turt2live
3918	MSC3918: Matrix Message Transport (IETF/MIMI)	2022-10-28	2022-10-28		@turt2live
3917	MSC3917: Cryptographically Constrained Room Membership	2022-10-25	2024-06-21		@duxovni
3915	MSC3915: Owner power level	2022-10-23	2024-09-23		@ara4n
3914	MSC3914: Matrix native group call push rule	2022-10-20	2023-05-12		@SimonBrandner
3912	MSC3912: Redaction of related events	2022-10-18	2023-06-26		@babolivier
3911	MSC3911: Linking media to events	2022-10-16	2024-08-16		@richvdh
3908	MSC3908: Expiring Policy List Recommendations	2022-10-13	2024-01-30		@FSG-Cat
3907	MSC3907: Mute Policy Recommendation	2022-10-13	2024-05-20		@FSG-Cat
3896	MSC3896: Appservice media	2022-09-24	2024-07-01		@tezlm
3892	MSC3892: Custom Emotes with Encryption	2022-09-14	2023-10-24		@nmscode
3890	MSC3890: Remotely silence local notifications	2022-09-13	2023-02-20		@kerryarchibald
3888	MSC3888: Voice Broadcast	2022-09-09	2023-06-05		@weeman1337
3885	MSC3885: Sliding Sync Extension: To-Device messages	2022-09-07	2024-07-24		@kegsay
3884	MSC3884: Sliding Sync Extension: E2EE	2022-09-06	2024-01-04		@kegsay
3881	MSC3881: Remotely toggle push notifications for another client	2022-09-05	2022-11-21		@kerryarchibald
3880	MSC3880: dummy replies for Olm	2022-09-05	2022-09-07		@uhoreg
3879	MSC3879: Trusted key forwards	2022-09-05	2023-10-16		@uhoreg
3874	MSC3874: Filtering threads from the /messages endpoint	2022-08-23	2023-06-06		@justjanne
3871	MSC3871: Gappy timelines	2022-08-18	2024-05-29		@MadLittleMods
3870	MSC3870: Async media upload extension: upload to URL	2022-08-17	2024-08-10		@Fizzadar
3869	MSC3869: Read event relations with the Widget API	2022-08-16	2022-11-09		@dhenneke
3866	MSC3866: `M_USER_AWAITING_APPROVAL` error code	2022-08-12	2022-09-29		@babolivier
3857	MSC3857: Welcome messages	2022-08-02	2022-08-14		@turt2live
3851	MSC3851: Allow custom room presets when creating a room	2022-07-21	2022-07-22		@anoadragon453
3848	MSC3848: Introduce errcodes for specific event sending failures	2022-07-19	2022-10-11		@Half-Shot
3847	MSC3847: Ignoring invites with policy rooms	2022-07-13	2024-06-02		@Yoric
3846	MSC3846: Allowing widgets to access TURN servers	2022-07-13	2022-08-01		@robintown
3845	MSC3845: Draft: Expanding policy rooms to reputation	2022-07-12	2022-12-22		@Yoric
3843	MSC3843: Reporting content over federation	2022-07-11	2024-06-12		@turt2live
3840	MSC3840: Ignore invites	2022-06-28	2024-05-31		@Yoric
3837	MSC3837: Cascading profile tags for push rules	2022-06-23	2024-06-06		@Johennes
3834	MSC3834: Opportunistic user key pinning (TOFU)	2022-06-14	2023-05-11		@duxovni
3825	MSC3825: Obvious relation fallback location	2022-05-24	2022-10-12		@deepbluev7
3824	MSC3824: OIDC aware clients	2022-05-24	2024-07-08		@hughns
3819	MSC3819: Allowing widgets to send/receive to-device messages	2022-05-19	2024-10-11		@turt2live	@toger5
3817	MSC3817: Allow widgets to create rooms	2022-05-17	2022-08-05		@dhenneke
3784	MSC3784: Using room type of `m.policy` for policy rooms	2022-04-25	2024-10-11		@FSG-Cat
3782	MSC3782: Matrix public key login spec	2022-04-21	2022-10-21		@tak-hntlabs
3780	MSC3780: Knocking on `action=join`	2022-04-20	2022-08-05		@ShadowJonathan
3779	MSC3779: "Owned" State Events	2022-04-20	2024-10-07		@andybalaam
3768	MSC3768: Push rule action for in-app notifications	2022-04-08	2024-06-06		@Johennes
3767	MSC3767: Time based notification filtering	2022-04-07	2024-02-27		@kerryarchibald
3759	MSC3759: Leave event metadata for deactivated users	2022-03-31	2022-04-24		@Half-Shot
3754	MSC3754: Removing profile information	2022-03-12	2024-08-23		@zecakeh
3751	MSC3751: Allowing widgets to read account data	2022-03-05	2022-05-05		@AndrewRyanChama
3744	MSC3744: Support for flexible authentication	2022-02-24	2022-05-05		@cvwright
3741	MSC3741: Revealing the useful login flows to clients after a soft logout	2022-02-23	2022-05-05		@turt2live
3735	MSC3735: Add device information to m.room_key.withheld message	2022-02-18	2024-07-05		@uhoreg
3725	MSC3725: Content warnings	2022-02-14	2024-12-01		@robintown
3723	MSC3723: Federation `/versions`	2022-02-11	2024-06-24		@ShadowJonathan
3720	MSC3720: Account status	2022-02-09	2022-09-01		@babolivier
3713	MSC3713: Alleviating ACL exhaustion with ACL Slots	2022-02-06	2022-05-05		@FSG-Cat
3682	MSC3682: Sending Account Data to Application Services	2022-01-28	2024-06-04		@reivilibre
3673	MSC3673: Encrypted ephemeral data units	2022-01-25	2022-05-06		@stefanceriu	@anoadragon453
3672	MSC3672: Sharing ephemeral streams of location data	2022-01-25	2022-05-09		@stefanceriu	@anoadragon453
3664	MSC3664: Pushrules for relations	2022-01-21	2022-12-07		@deepbluev7
3659	MSC3659: Invite Rules	2022-01-19	2023-06-01		@joshqou
3644	MSC3644: Extensible Events: Edits and replies	2022-01-14	2022-05-05		@turt2live
3635	MSC3635: Early Media for VoIP	2022-01-10	2022-05-05		@dbkr
3618	MSC3618: Proposal to simplify federation `/send` response	2022-01-04	2024-11-26		@neilalexander
3593	MSC3593: Safety Controls through a generic Administration API	2021-12-25	2022-05-16		@ShadowJonathan
3575	MSC3575: Sliding Sync (aka Sync v3)	2021-12-20	2024-11-21		@kegsay
3574	MSC3574: Marking up resources	2021-12-18	2024-05-31		@gleachkr
3572	MSC3572: Relation aggregation cleanup	2021-12-16	2024-07-23		@bwindels
3571	MSC3571: Relation aggregation pagination	2021-12-16	2024-06-25		@bwindels
3570	MSC3570: Room history visibility changes for relations	2021-12-15	2022-05-05		@bwindels
3554	MSC3554: Extensible Events - Translatable Text	2021-12-07	2024-10-09		@turt2live
3553	MSC3553: Extensible Events - Videos	2021-12-07	2023-08-03		@turt2live
3552	MSC3552: Extensible Events - Images and Stickers	2021-12-07	2023-12-01		@turt2live
3551	MSC3551: Extensible Events - Files	2021-12-07	2023-04-18		@turt2live
3548	MSC3547: Allow appservice bot user to read any rooms the appservice is part of	2021-12-06	2022-05-05		@Half-Shot
3531	MSC3531: Letting moderators hide messages pending moderation	2021-11-26	2023-09-23		@Yoric
3489	MSC3489: Sharing streams of location data with history	2021-11-14	2024-06-07		@ara4n
3488	MSC3488: Extending events with location data	2021-11-14	2024-04-28		@ara4n
3480	MSC3480: Make device names private	2021-11-09	2023-01-02		@uhoreg
3469	MSC3469: Mandate HTTP Range on Content Repository Endpoints	2021-11-03	2024-04-24		@ShadowJonathan
3468	MSC3468: MXC to Hashes	2021-11-03	2023-12-16		@ShadowJonathan
3417	MSC3417: Call room room type	2021-09-30	2023-07-06		@SimonBrandner
3401	MSC3401: Native Group VoIP Signalling	2021-09-19	2024-09-16		@ara4n
3395	MSC3395: Synthetic appservice events	2021-09-14	2021-12-14		@Half-Shot
3394	MSC3394: New auth rule that only allows someone to post a message in relation to another message	2021-09-12	2022-05-05		@frandavid100
3391	MSC3391: API to delete account data	2021-09-09	2023-11-27		@ShadowJonathan
3389	MSC3389: Relation redactions	2021-09-09	2024-06-24		@bwindels
3386	MSC3386: Unified Join Rules	2021-09-07	2024-01-28		@kevincox
3382	MSC3382: Inline message Attachments	2021-09-07	2022-11-28		@MurzNN
3368	MSC3368: Message Content Tags	2021-08-28	2024-09-16		@0x1a8510f2
3360	MSC3360: Server Status	2021-08-25	2022-05-05		@daenney
3356	MSC3356: Add additional OpenID user info fields	2021-08-24	2022-11-17		@jkanefendt
3338	MSC3338: Adding iframe specifics to preview json	2021-08-13	2022-05-05		@srdjan-catalyst
3325	MSC3325: Upgrading invite-only rooms	2021-08-10	2021-08-30		@uhoreg
3309	MSC3309: Simple counters	2021-08-03	2022-07-15		@erikjohnston
3277	WIP: MSC3277: Scheduled messages	2021-07-10	2024-05-14		@ara4n
3266	MSC3266: Room summary API	2021-07-04	2024-12-10		@deepbluev7
3255	MSC3255: Use SRV record for homeservers discovery by clients	2021-06-21	2022-07-31		@Berbe
3246	MSC3246: Audio waveform for extensible events	2021-06-15	2022-11-14		@turt2live
3245	MSC3245: Voice messages (using extensible events)	2021-06-15	2023-10-02		@turt2live
3244	MSC3244: Room version capabilities	2021-06-15	2022-07-12		@BillCarsonFr
3230	MSC3230: Spaces top level order	2021-06-03	2024-12-19		@BillCarsonFr
3217	MSC3217: Soft kicks	2021-05-25	2022-05-05		@Half-Shot
3216	MSC3216: Synchronized access control for Spaces	2021-05-24	2022-05-05		@joepie91
3214	MSC3214: Allow overriding `m.room.power_levels` using `initial_state`	2021-05-24	2024-07-05		@tulir
3202	MSC3202: Encrypted appservices	2021-05-18	2024-09-28		@turt2live
3174	MSC3174: An error code for spam rejections	2021-05-04	2022-05-05		@Yoric
3160	MSC3160: Message timezone markup	2021-04-30	2022-05-05		@bwindels
3144	MSC3144: Allow Widgets By Default in Private Rooms	2021-04-23	2022-05-05		@dbkr
3131	MSC3131: Verifying with QR codes v2	2021-04-16	2022-05-05		@uhoreg
3124	MSC3124: Handling spoilers in plain-text message fallback	2021-04-15	2022-05-05		@xenofem
3105	MSC3105: Previewing UIA flows	2021-04-06	2023-07-26		@turt2live
3086	MSC3086: Asserted identity on VoIP calls	2021-04-01	2022-05-05		@dbkr
3079	MSC3079: Low Bandwidth CS API	2021-03-30	2024-11-17		@kegsay
3061	MSC3061: Sharing room keys for past messages	2021-03-12	2024-12-07		@uhoreg
3051	MSC3051: A scalable relation format	2021-03-05	2024-11-23		@deepbluev7
3038	MSC3038: Typed typing notifications	2021-03-02	2022-07-11		@turt2live
3026	MSC3026: "busy" presence state	2021-02-23	2023-08-16		@babolivier
3015	MSC3015: Room state personal overrides	2021-02-19	2024-03-31		@MurzNN
3014	MSC3014: HTTP Pushers for the full event with extra rooms information	2021-02-18	2022-05-05		@Sorunome
3013	MSC3013: Encrypted Push	2021-02-17	2024-08-01		@Sorunome
3012	MSC3012: Post-registration terms of service API	2021-02-17	2022-05-05		@turt2live
3009	MSC3009: Websocket transport for client <--> widget communications	2021-02-15	2022-05-05		@turt2live
3008	MSC3008: Scoped access for widgets	2021-02-15	2022-05-05		@turt2live
3006	MSC3006: Bot Interactions	2021-02-13	2024-12-13		@MTRNord
2997	MSC2997: Add t-shirt	2021-02-07	2023-09-24		@Sorunome
2974	MSC2974: Widgets: Capabilities re-exchange	2021-01-19	2022-05-05		@turt2live
2970	MSC2970: Remove pusher path requirement	2021-01-17	2023-08-21		@Sorunome
2967	MSC2967: API scopes	2021-01-14	2024-09-20		@sandhose
2966	MSC2966: Usage of OAuth 2.0 Dynamic Client Registration in Matrix	2021-01-14	2024-12-09		@sandhose
2965	MSC2965: OIDC Provider discovery	2021-01-14	2024-12-11		@sandhose
2964	MSC2964: Usage of OAuth 2.0 authorization code grant and refresh token grant	2021-01-14	2024-12-07		@sandhose
2962	MSC2962: Managing power levels via Spaces	2021-01-14	2022-05-05		@ara4n
2961	MSC2961: External Signatures	2021-01-13	2022-05-05		@Sorunome
2949	MSC2949: Proposal to clarify "Requires auth" and "Rate-limited" in the spec	2021-01-07	2024-06-01		@tulir
2943	MSC2943: Return an event ID for membership endpoints	2021-01-07	2022-07-19		@turt2live
2938	MSC2938: Report content to moderators	2021-01-05	2024-04-30		@Yoric
2931	MSC2931: Allow widgets to navigate with matrix.to URIs	2020-12-29	2022-05-05		@turt2live
2895	MSC2895: Proposal to improve /members and /joined_rooms	2020-12-07	2022-05-05		@turt2live
2881	MSC2881: Message Attachments	2020-11-27	2022-10-13		@MurzNN
2873	MSC2873: Identifying clients and user settings in widgets	2020-11-23	2024-12-18		@turt2live
2872	MSC2872: Move the widget title to the top level of the definition	2020-11-23	2022-05-05		@turt2live
2871	MSC2871: Give widgets an indication of which capabilities they were approved for	2020-11-20	2022-05-05		@turt2live
2855	MSC2855: Server-Initiated Client Clear-Cache & Reload	2020-11-08	2022-05-05		@jevolk
2848	MSC2848: Globally unique event IDs	2020-11-04	2022-05-05		@turt2live
2846	MSC2846: Decentralizing media through CIDs	2020-11-02	2023-06-19		@jcgruenhage
2845	MSC2845: Phone number lookups using third party API	2020-11-02	2022-05-05		@dbkr
2839	MSC2839: Dynamic User-Interactive Authentication	2020-10-29	2022-05-05		@Sorunome
2836	MSC2836: Twitter-style Threading	2020-10-28	2024-02-24		@kegsay
2835	MSC2835: Add UIA to the /login endpoint	2020-10-28	2022-05-05		@Sorunome
2828	MSC2828: Proposal to restrict allowed user IDs over federation	2020-10-20	2022-05-05		@tulir
2815	MSC2815: Proposal to allow room moderators to view redacted event content	2020-10-10	2024-04-27		@tulir
2813	MSC2813: Widget API error handling and validation	2020-10-09	2022-05-05		@turt2live
2790	MSC2790: Modal widgets (acquiring user input from a widget)	2020-09-24	2022-05-05		@turt2live
2785	MSC2785: Event notification attributes and actions	2020-09-20	2022-05-05		@richvdh
2782	MSC2782: Pushers with the full event content	2020-09-19	2022-05-05		@Sorunome
2772	MSC2772: Notifications for Jitsi Calls	2020-09-11	2022-05-05		@dbkr
2762	MSC2762: Allowing widgets to send/receive events	2020-09-02	2024-11-25		@turt2live
2757	MSC2757: Sign Events	2020-09-01	2022-05-05		@Sorunome
2755	MSC2755: Lazy load rooms	2020-08-31	2022-05-05		@deepbluev7
2753	MSC2753: Peeking via sync (take 2)	2020-08-29	2024-06-02		@ara4n
2749	MSC2749: Per-user E2EE on/off setting	2020-08-25	2023-10-13		@KB1RD
2747	MSC2747: VoIP call transfers	2020-08-21	2023-02-06		@dbkr
2730	MSC2730: Verifiable forwarded events	2020-08-12	2022-05-05		@tulir
2723	MSC2723: Forwarded message metadata	2020-08-12	2022-12-22		@hummlbach
2716	MSC2716: Incrementally importing history into existing rooms	2020-08-04	2024-06-24		@ara4n
2695	MSC2695: Get event by ID over federation	2020-07-23	2024-08-12		@jryans
2673	MSC2673: Notification Levels	2020-07-07	2022-05-05		@timokoesters
2666	MSC2666: Get rooms in common with another user	2020-07-05	2023-07-13		@Half-Shot, @ShadowJonathan
2654	MSC2654: Unread counts	2020-06-24	2024-08-08		@babolivier
2644	MSC2644: `matrix.to` URI syntax v2	2020-06-19	2024-08-12		@jryans
2618	MSC2618: Helping others with mandatory implementation guides	2020-06-09	2022-05-05		@turt2live
2596	MSC2596: Proposal to always allow rescinding invites	2020-06-01	2024-04-09		@tulir
2545	MSC2545: Image Packs (Emoticons & Stickers)	2020-05-15	2024-11-26		@Sorunome
2529	MSC2529: Proposal to use existing events as captions for images	2020-05-07	2022-07-17		@benparsons
2513	MSC2513: Allow clients to specify content for membership events	2020-04-23	2022-05-05		@jevolk
2499	MSC2499: Fixes for Well-known URIs	2020-04-13	2023-03-26		@aaronraimist
2487	MSC2487: Filtering for Appservices	2020-04-03	2023-01-04		@Sorunome
2477	MSC2477: User-defined ephemeral events in rooms	2020-03-28	2024-09-30		@ananace
2474	MSC2474: Add key backup version to SSSS account data	2020-03-26	2022-05-05		@uhoreg
2463	MSC2463: Exclusion of MXIDs in push rules content matching	2020-03-18	2023-05-13		@pacien
2448	MSC2448: Using BlurHash as a Placeholder for Matrix Media	2020-02-27	2024-01-22		@anoadragon453
2444	MSC2444: peeking over federation via /peek	2020-02-24	2022-05-05		@ara4n
2437	MSC2437: Store tagged events in Room Account Data	2020-02-18	2023-01-20		@giomfo
2427	MSC2427: Proposal for JSON-based message formatting	2020-01-24	2024-01-18		@tulir
2425	MSC2425: Remove Authentication on /submitToken Identity Service API	2020-01-24	2023-02-28		@anoadragon453
2416	MSC2416: Add m.login.jwt authentication type	2020-01-18	2022-05-24		@Sorunome
2413	MSC2413: Remove client_secret	2020-01-17	2022-05-05		@anoadragon453
2398	MSC2398: proposal to allow mxc:// in the "a" tag within messages	2020-01-02	2024-03-26		@eras
2391	MSC2391: Federation point-queries.	2019-12-19	2022-05-05		@jevolk
2388	MSC2388: Toward the EDU-to-PDU transition: Read Receipts.	2019-12-18	2022-05-05		@jevolk
2385	MSC2385: Disable URL Previews, alternative method	2019-12-08	2024-01-31		@Sorunome	@anoadragon453
2380	MSC2380: Matrix Media Information API	2019-12-05	2022-05-05		@turt2live
2379	MSC2379: Add /versions endpoint to Appservice API	2019-12-04	2022-05-05		@Half-Shot
2375	MSC2375: Appservice Invite States	2019-12-03	2022-05-05		@Sorunome
2354	MSC2354: Device to device streaming file transfers	2019-11-14	2022-08-17		@mvgorcum
2346	MSC2346: Bridge information state event	2019-11-05	2023-02-25		@Half-Shot
2326	MSC2326: Label based filtering	2019-10-22	2023-03-29		@ara4n
2316	MSC2316: Federation queries to aid with database recovery	2019-10-08	2022-05-05		@jevolk
2315	MSC2315: Allow users to select 'none' as an integration manager	2019-10-08	2022-11-03		@turt2live
2299	MSC2299: Proposal to add m.textfile msgtype	2019-09-21	2022-05-05		@Sorunome
2291	MSC2291: Configuration to Control Crawling	2019-09-14	2023-10-20		@uhoreg
2278	MSC2278: Deleting attachments for expired and redacted messages	2019-09-03	2024-09-03		@ara4n
2270	MSC2270: Proposal for Ignoring Invites	2019-08-31	2024-10-02		@ara4n
2228	MSC2228: Self destructing events	2019-08-11	2023-04-26		@ara4n
2214	MSC2214: Joining upgraded private rooms	2019-08-02	2022-05-05		@turt2live
2213	MSC2213: Rejoinability of private/invite-only rooms	2019-08-02	2023-05-16		@turt2live
2212	MSC2212: Third party user power levels	2019-08-01	2022-05-05		@turt2live
2211	MSC2211: Identity Servers Storing Threepid Hashes at Rest	2019-08-01	2022-05-05		@anoadragon453
2199	MSC2199: Canonical DMs	2019-07-30	2024-05-25		@turt2live
2192	MSC2192: Inline widgets	2019-07-28	2024-10-11		@turt2live
2162	MSC2162: Signaling Errors at Bridges	2019-07-09	2022-06-17		@V02460
2127	MSC2127: Federation capabilities API	2019-06-12	2022-05-05		@turt2live
2108	MSC2108: Sync over Server Sent Events	2019-06-11	2022-08-16		@stalniy
2102	MSC2102: Enforce Canonical JSON on the wire for the S2S API	2019-06-08	2022-05-05		@llebout
2063	MSC2063: Add "server information" public API proposal	2019-05-31	2022-05-05		@grinapo
1998	MSC1998: Two-Factor Authentication Providers	2019-05-14	2024-07-09		@cyphar
1974	MSC1974: Crypto Puzzle Challenge	2019-04-24	2023-01-18		@Zolmeister
1973	MSC1973: Hash Key User ID	2019-04-24	2022-05-05		@Zolmeister
1959	MSC1959: Sticker picker API	2019-04-09	2022-05-05		@turt2live
1921	MSC1921: Support cancelling 3pid validation sessions	2019-03-08	2022-05-05		@turt2live
1862	MSC1862: Presence Capabilities	2019-02-07	2022-05-05		@Half-Shot
1797	MSC1797: Proposal for more granular profile error codes	2019-01-11	2022-05-05		@turt2live
1796	MSC1796: improved e2e notifications	2019-01-11	2023-03-19		@ara4n
1763	MSC1763: Proposal for specifying configurable message retention periods	2018-12-30	2024-11-27		@ara4n
1740	MSC1740: Using the Accept header to select an encoding	2018-12-02	2022-05-05		@Half-Shot
1716	MSC1716: Open on device API	2018-11-12	2022-05-05		@Half-Shot
1597	MSC1597: Better spec for matrix identifiers	2018-08-29	2024-04-26		@richvdh
3812	MSC1485: Hint buttons in messages	2018-08-04	2024-12-20	1	@tulir
3811	[WIP] MSC1453: Antivirus support	2018-07-26	2022-09-17		@ara4n
3809	Proposal to improve /createRoom	2018-06-22	2022-05-10	1	@turt2live
1316	Proposal to have the appservice registration `type` be optional	2018-06-18	2021-05-03	1	@turt2live
3807	Proposal for an application service management API	2018-06-14	2022-05-10	1	@turt2live
3806	Proposal to filter out traffic to Appservices based on filters	2018-06-14	2022-05-10	1	@Half-Shot
3802	Mitigating abuse of the event depth parameter over federation	2018-05-10	2022-05-20	1	@ara4n
3801	Bridging group membership with 3rd party group sources	2018-05-10	2022-07-19	1	@lukebarnard1
3800	Proposal for improved bot support	2018-05-10	2022-05-09	1	@turt2live
3799	Threading API	2018-05-10	2022-07-31	1	@Half-Shot
3798	Support for websockets	2018-03-06	2022-05-09	1, 2	@richvdh, @krombel
3797	Refine and clarify how presence works	2017-12-26	2022-05-09	1	@ara4n
3796	Auth for content repo (and enforcing GDPR erasure)	2016-08-20	2024-04-23	1	@ara4n
3795	Extensible Profiles. (SPEC-93)	2015-01-19	2024-09-24	1	@erikjohnston
3794	Federation API for canonicalising MXIDs	2014-10-27	2022-05-16	1	@ara4n

Proposed Final Comment Period

MSC	Title	Created at	Updated at	Author	Shepherd
4213	MSC4213: Remove server_name parameter from `join` and `knock` endpoints	2024-10-09	2024-12-02	@Johennes
4183	MSC4183: Additional Error Codes for submitToken endpoint	2024-08-28	2024-11-29	@dbkr
3765	MSC3765: Rich text in room topics	2022-04-03	2024-12-18	@Johennes
3757	MSC3757: Restricting who can overwrite a state event	2022-03-25	2024-12-19	@andybalaam	@AndrewFerr

Final Comment Period

No MSCs are currently in this state.

Finished Final Comment Period

MSC	Title	Created at	Updated at	Docs	Author	Shepherd
2244	MSC2244: Mass redactions	2019-08-23	2023-12-18		@tulir
1840	MSC1840: Typed rooms	2019-02-03	2024-07-13		@jfrederickson

Spec PR Missing

MSC	Title	Created at	Updated at	Author	Shepherd
4147	MSC4147: Including device keys with Olm-encrypted events	2024-05-29	2024-12-10	@uhoreg
3930	MSC3930: Polls push rules/notifications	2022-11-14	2024-06-18	@turt2live
3381	MSC3381: Polls (mk II)	2021-09-07	2024-06-18	@turt2live
2870	MSC2870: Protect server ACLs from redaction	2020-11-20	2024-04-15	@turt2live
1961	MSC1961: Integration manager authentication APIs	2019-04-09	2021-04-06	@turt2live
1957	MSC1957: Integration manager discovery	2019-04-08	2021-04-06	@turt2live
1767	MSC1767: Extensible event types & fallback in Matrix (v2)	2019-01-01	2024-08-17	@ara4n	@turt2live

Spec PR In Review

MSC	Title	Created at	Updated at	Docs	Author
2781	MSC2781: Remove the reply fallbacks from the specification	2020-09-18	2024-11-19		@deepbluev7
2774	MSC2774: Expose the widget ID to the widget	2020-09-11	2021-04-06		@turt2live
2765	MSC2765: Widget avatars	2020-09-03	2021-04-06		@turt2live
1960	MSC1960: OpenID information exchange with widgets	2019-04-09	2023-07-19		@turt2live
3810	Widget API extension: Always-on-screen	2018-07-03	2022-05-09	1	@dbkr
3803	Matrix Widget API v2	2018-05-13	2024-05-10	1	@rxl881

Merged

MSC	Title	Created at	Updated at	Docs	Author	Shepherd
4225	MSC4225: Specification of an order in which one-time-keys should be issued	2024-11-06	2024-12-12		@richvdh
4189	MSC4189: Allowing guests to access uploaded media	2024-09-05	2024-09-30		@turt2live
4178	MSC4178: Additional Error Codes for requestToken endpoint	2024-08-16	2024-12-11		@dbkr
4170	MSC4170: 403 error responses for profile APIs	2024-07-08	2024-10-07		@Johennes
4163	MSC4163: Make ACLs apply to EDUs	2024-07-06	2024-12-11		@Kladki
4159	MSC4159: Remove the deprecated name attribute on HTML anchor elements	2024-06-20	2024-07-10		@Johennes
4156	MSC4156: Migrate server_name to via	2024-06-17	2024-08-28		@Johennes
4151	MSC4151: Reporting rooms (Client-Server API)	2024-06-05	2024-10-10		@turt2live
4138	MSC4138: Update allowed HTTP methods in CORS responses	2024-05-03	2024-12-11		@turt2live
4132	MSC4132: Deprecate Linking to an Event Against a Room Alias	2024-04-17	2024-06-18		@pixlwave
4126	MSC4126: Deprecation of query string auth	2024-04-10	2024-09-28		@turt2live
4115	MSC4115: membership information on events	2024-02-26	2024-06-18		@richvdh
4077	MSC4077: Improved process for handling deprecated HTML features	2023-11-14	2024-06-18		@turt2live
4041	MSC4041: http header Retry-After for http code 429	2023-08-10	2024-06-18		@ThomasHalwax
4040	MSC4040: Update SRV service name to IANA registration	2023-08-04	2024-06-18		@turt2live
4026	MSC4026: Allow `/versions` to optionally accept authentication	2023-06-06	2024-06-18		@H-Shay
4025	MSC4025: Local user erasure requests	2023-06-02	2024-06-18		@turt2live
4010	MSC4010: Push rules and account data	2023-05-03	2024-06-18		@clokep
4009	MSC4009: Expanding the Matrix ID grammar to enable E.164 IDs	2023-05-03	2024-06-18		@clokep
3989	MSC3989: Redact `origin` property on events	2023-04-04	2024-06-18		@turt2live
3987	MSC3987: Push actions clean-up	2023-03-29	2024-06-18		@clokep
3981	MSC3981: `/relations` recursion	2023-03-19	2024-06-18		@justjanne
3980	MSC3980: Dotted Field Consistency	2023-03-15	2024-06-18		@clokep
3970	MSC3970: Scope transaction IDs to devices	2023-02-23	2024-06-18		@hughns
3967	MSC3967: Do not require UIA when first uploading cross signing keys	2023-02-15	2024-06-18		@hughns
3966	MSC3966: `event_property_contains` push rule condition	2023-02-09	2024-06-18		@clokep
3958	MSC3958: Suppress notifications from message edits	2023-01-24	2024-06-18		@clokep
3952	MSC3952: Intentional Mentions	2023-01-06	2024-06-18		@clokep
3943	MSC3943: Partial joins to nameless rooms should include heroes' memberships	2022-12-02	2024-06-18		@DMRobertson
3939	MSC3939: Account locking	2022-11-24	2024-09-30		@babolivier
3938	MSC3938: Remove keyId from `/keys` endpoints	2022-11-22	2024-06-18		@richvdh
3925	MSC3925: m.replace aggregation with full event	2022-11-03	2024-06-18		@benkuly
3923	MSC3923: Bringing Matrix into the IETF process	2022-11-02	2024-06-18		@turt2live
3916	MSC3916: Authentication for media	2022-10-23	2024-09-05		@richvdh
3905	MSC3905: Application services should only be interested in local users	2022-10-12	2024-06-18		@MadLittleMods
3904	MSC3904: Room version 10 as the default room version	2022-10-09	2024-06-18		@FSG-Cat
3882	MSC3882: Allow an existing session to sign in a new session	2022-09-05	2024-06-18		@hughns
3873	MSC3873: event_match dotted keys	2022-08-21	2024-06-18		@Johennes
3860	MSC3860: Media Download Redirects	2022-08-04	2024-06-18		@Fizzadar
3856	MSC3856: Threads List API	2022-07-26	2024-06-18		@clokep
3844	MSC3844: Remove unused policy room sharing mechanism	2022-07-11	2024-06-18		@turt2live
3828	MSC3828: Content Repository CORP Headers	2022-06-01	2024-06-18		@robertlong
3827	MSC3827: Filtering of `/publicRooms` by room type	2022-05-27	2024-11-20		@SimonBrandner
3823	MSC3823: Account Suspension	2022-05-23	2024-12-12		@Yoric
3821	MSC3821: Update the redaction rules, again	2022-05-20	2024-06-18		@turt2live
3820	MSC3820: Room version 11	2022-05-20	2024-06-18		@turt2live
3818	MSC3818: Copy room type on upgrade	2022-05-18	2024-06-18		@Mikaela
3816	MSC3816: Clarify Thread Participation	2022-05-17	2024-06-18		@clokep
3787	MSC3787: Allowing knocks to restricted rooms	2022-05-04	2024-06-18		@turt2live
3786	MSC3786: Add a default push rule to ignore `m.room.server_acl` events	2022-04-30	2024-06-18		@SimonBrandner
3783	MSC3783: Fixed base64 for SAS verification	2022-04-25	2024-06-18		@uhoreg
3773	MSC3773: Notifications for threads	2022-04-15	2024-06-18		@clokep
3771	MSC3771: Read receipts for threads	2022-04-15	2024-06-18		@clokep
3758	MSC3758: Add `event_property_is` push rule condition kind	2022-03-27	2024-06-18		@Fizzadar
3743	MSC3743: Standardized error response for unknown endpoints	2022-02-23	2024-06-18		@clokep
3715	MSC3715: Add a pagination direction parameter to `/relations`	2022-02-07	2024-06-18		@clokep
3706	MSC3706: Extensions to `/_matrix/federation/v2/send_join/{roomId}/{eventId}` for partial state	2022-02-03	2024-06-18		@richvdh
3700	MSC3700: Deprecate plaintext sender key	2022-02-03	2024-06-18		@erikjohnston
3676	MSC3676: Transitioning away from reply fallbacks	2022-01-26	2022-06-08		@ara4n
3667	MSC3667: Enforce integer power levels	2022-01-21	2024-11-05		@neilalexander
3666	MSC3666: Bundled aggregations for server side search	2022-01-21	2024-06-18		@clokep
3604	MSC3604: Room Version 10	2021-12-29	2022-09-27		@turt2live
3589	MSC3589: Room version 9 as the default room version	2021-12-23	2022-03-02		@turt2live
3582	MSC3582: Remove m.room.message.feedback	2021-12-21	2022-05-05		@uhoreg
3567	MSC3567: Allow requesting events from the start/end of the room history	2021-12-14	2023-05-17		@clokep
3550	MSC3550: Allow HTTP 403 as a response to profile lookups	2021-12-07	2024-06-25		@H-Shay
3442	MSC3442: move the `prev_content` key to `unsigned`	2021-10-14	2024-08-31		@richvdh
3440	MSC3440: Threading via `m.thread` relation	2021-10-13	2024-06-18		@germain-gg
3419	MSC3419: Allow guests to send more event types	2021-10-01	2022-01-05		@ara4n
3383	MSC3383: Include destination in X-Matrix Auth Header	2021-09-07	2024-06-18		@jcgruenhage
3375	MSC3375: Room version 9	2021-09-02	2023-05-17		@clokep
3316	MSC3316: Add timestamp massaging to the spec	2021-08-07	2022-07-18		@tulir
3291	MSC3291: Muting in VoIP calls	2021-07-22	2024-03-26		@SimonBrandner
3289	MSC3289: Room version 8	2021-07-21	2023-05-17		@clokep
3288	MSC3288: Add room type to `/_matrix/identity/v2/store-invite` API	2021-07-20	2022-01-17		@BillCarsonFr
3283	MSC3283: Expose capabilities for profile actions	2021-07-13	2022-05-16		@JonasKress
3267	MSC3267: Reference relations	2021-07-05	2022-10-18		@bwindels
3231	MSC3231: Token authenticated registration	2021-06-04	2022-03-01		@govynnus
3173	MSC3173: Expose stripped state events to any potential joiner	2021-05-03	2023-05-17		@clokep
3122	MSC3122: Deprecate starting verifications without requesting first	2021-04-14	2021-05-20		@uhoreg
3083	MSC3083: Restricting room membership based on membership in other rooms	2021-03-31	2023-05-17		@clokep
3077	MSC3077: Support for multi-stream VoIP	2021-03-29	2024-03-19		@SimonBrandner
3069	MSC3069: Allow guests to use /account/whoami	2021-03-19	2022-02-18		@turt2live
3030	MSC3030: Jump to date API endpoint	2021-02-25	2022-12-21		@MadLittleMods
2998	MSC2998: Room Version 7	2021-02-08	2021-04-30		@anoadragon453
2946	MSC2946: Spaces Summary	2021-01-07	2023-08-15		@clokep
2918	MSC2918: Refresh tokens	2020-12-18	2022-10-14		@sandhose
2874	MSC2874: Single SSSS	2020-11-23	2021-04-28		@uhoreg
2867	MSC2867: Marking rooms as unread	2020-11-17	2024-07-15		@Bubu
2858	MSC2858: Multiple SSO Identity Providers	2020-11-09	2021-05-27		@t3chguy
2844	MSC2844: Global version number for the whole spec	2020-10-30	2022-02-22		@turt2live
2832	MSC2832: HS -> AS authorization header	2020-10-24	2022-08-04		@tulir
2801	MSC2801: Make it explicit that event bodies are untrusted data	2020-10-01	2022-05-19		@richvdh
2788	MSC2788: Room version 6 as the default room version	2020-09-23	2020-10-05		@turt2live
2778	MSC2778: Providing authentication method for appservice users	2020-09-16	2021-12-28		@Half-Shot
2758	MSC2758: Proposal for a common identifier grammar	2020-09-01	2021-12-29		@richvdh
2746	MSC2746: Improved VoIP Signalling	2020-08-21	2023-05-23		@dbkr
2732	MSC2732: Olm fallback keys	2020-08-14	2022-01-05		@uhoreg
2713	MSC2713: Remove deprecated v1 Identity Service API	2020-07-30	2022-07-04		@turt2live
2705	MSC2705: Animated thumbnails for media	2020-07-28	2024-04-01		@turt2live
2702	MSC2702: Specifying semantics for Content-Disposition on media	2020-07-28	2024-09-30		@turt2live
2701	MSC2701: Clarifying `Content-Type` usage in the media repo	2020-07-28	2024-09-30		@turt2live
2689	MSC2689: Fix E2EE for guests	2020-07-15	2020-10-07		@awesome-michael
2677	MSC2677: Annotations and reactions	2020-07-07	2023-04-25		@uhoreg	@richvdh
2676	MSC2676: Message editing	2020-07-07	2022-11-08		@uhoreg
2675	MSC2675: Serverside aggregations of message relationships	2020-07-07	2022-06-08		@uhoreg
2674	MSC2674: Event Relationships	2020-07-07	2023-02-23		@uhoreg
2663	MSC2663: Errors for dealing with non-existent push rules	2020-07-03	2020-10-07		@reivilibre
2659	MSC2659: Application service ping endpoint	2020-06-29	2024-06-18		@tulir
2630	MSC2630: checking public keys in SAS verification	2020-06-11	2021-05-01		@uhoreg
2611	MSC2611: Remove `m.login.token` User-Interactive Authentication type from the specification	2020-06-05	2022-03-01		@richvdh
2610	MSC2610: Remove `m.login.oauth2` User-Interactive Authentication type from the specification	2020-06-05	2022-02-21		@richvdh
2604	MSC2604: Accept device information for the login fallback endpoint	2020-06-04	2023-05-17		@clokep
2582	MSC2582: Remove mimetype from EncryptedFile object	2020-05-26	2021-09-27		@Sorunome
2557	MSC2557: Proposal to clarify spoilers	2020-05-19	2021-04-06		@turt2live
2540	MSC2540: Stricter event validation: JSON compliance	2020-05-13	2023-05-17		@clokep
2530	MSC2530: Body field as media caption	2020-05-07	2024-02-26		@tulir
2526	MSC2526: Add ability to delete key backups	2020-05-05	2024-11-05		@uhoreg
2472	MSC2472: Symmetric SSSS	2020-03-24	2023-04-12		@uhoreg
2457	MSC2457: Invalidating devices during password modification	2020-03-12	2023-05-17		@clokep
2454	MSC2454: Support UI auth for SSO	2020-03-09	2023-05-17		@clokep
2451	MSC2451: Remove `query_auth` federation endpoint.	2020-03-03	2020-04-22		@clokep
2432	MSC2432: Updated semantics for publishing room aliases	2020-02-10	2023-07-28		@richvdh
2422	MSC2422: Allow color on font tag	2020-01-23	2021-04-06		@deepbluev7
2414	MSC2414: Make reason and score parameters optional for reporting content	2020-01-18	2022-03-01		@iinuwa
2409	MSC2409: Proposal to send typing, presence and receipts to appservices	2020-01-14	2024-12-11		@Sorunome
2403	MSC2403: Add "knock" feature	2020-01-09	2022-06-27		@Sorunome	@anoadragon453
2399	MSC2399: Reporting that decryption keys are withheld	2020-01-02	2022-07-15		@uhoreg
2367	MSC2367: Add reason field to all membership events	2019-11-26	2020-10-07		@erikjohnston
2366	MSC2366: Key verification flow additions: m.key.verification.ready and m.key.verification.done	2019-11-25	2022-03-01		@uhoreg
2334	MSC2334 - Change default room version to v5	2019-10-30	2020-04-20		@aaronraimist
2324	MSC2324: Facilitating early releases of software dependent on spec	2019-10-18	2020-05-21		@turt2live
2320	MSC2320: Versions information for identity servers	2019-10-15	2021-05-04		@babolivier
2313	MSC2313: Moderation policies as rooms (ban lists)	2019-10-05	2020-11-14		@ara4n
2312	MSC2312: Matrix URI scheme proposal	2019-10-04	2022-03-01		@KitsuneRal
2290	MSC2290: Separate Endpoints for Threepid Binding	2019-09-12	2020-04-20		@anoadragon453
2285	MSC2285: Private read receipts	2019-09-06	2022-09-15		@SimonBrandner
2284	MSC2284: Making the identity server optional during discovery	2019-09-06	2021-05-02		@turt2live
2265	MSC2265: Proposal for mandating case folding when processing e-mail address localparts	2019-08-30	2021-07-12		@babolivier
2264	MSC2264: Add an unstable feature flag to MSC2140 for clients to detect support	2019-08-29	2020-04-20		@turt2live
2263	MSC2263: Give homeservers the ability to handle their own 3PID registrations/password resets	2019-08-29	2020-04-20		@turt2live
2249	MSC2249: Require users to have visibility on an event when submitting reports	2019-08-27	2023-08-15		@Half-Shot
2246	MSC2246: Asynchronous media uploads	2019-08-24	2023-11-30		@tulir
2241	MSC2241: Key verification in DMs	2019-08-22	2021-07-05		@uhoreg
2240	MSC2240: Room version 6	2019-08-22	2020-07-29		@turt2live
2230	MSC2230: Store Identity Server in Account Data	2019-08-13	2020-04-20		@dbkr
2209	MSC2209: Alter auth rules to check notifications in m.room.power_levels	2019-08-01	2020-07-29		@lucavb
2197	MSC2197: Search Filtering in Federation /publicRooms	2019-07-29	2021-10-30		@reivilibre
2191	MSC2191: Markup for mathematical messages	2019-07-26	2024-05-28		@uhoreg
2184	MSC2184: Allow the use of the HTML <details> tag	2019-07-16	2021-04-06		@ananace
2181	MSC2181: Add an Error Code for Signaling a Deactivated User	2019-07-16	2020-04-20		@anoadragon453
2176	MSC2176: Update the redaction rules	2019-07-14	2023-08-15		@richvdh
2175	MSC2175: Remove the `creator` field from `m.room.create` events	2019-07-14	2023-08-15		@richvdh
2174	MSC2174: Move the `redacts` key to a sane place	2019-07-14	2023-08-15		@richvdh
2140	MSC2140: Terms of Service for ISes and IMs	2019-06-20	2022-03-01		@dbkr
2134	MSC2134: Identity Hash Lookups	2019-06-15	2020-04-20		@anoadragon453
2078	MSC2078: Sending Third-Party Request Tokens via the Homeserver	2019-06-05	2020-04-20		@anoadragon453
2077	MSC2077: room v5	2019-06-04	2024-04-24		@richvdh
2076	MSC2076: Enforce key-validity periods when validating event signatures	2019-06-04	2024-04-24		@richvdh
2033	MSC2033: Adding a device_id to /account/whoami	2019-05-27	2021-05-03		@turt2live
2010	MSC2010: Add client-side spoilers	2019-05-22	2022-03-01		@Sorunome
2002	MSC2002: Proposal for adopting MSC1884 as v4 rooms	2019-05-17	2020-04-20		@ara4n
1983	MSC1983: Supporting a reason for leaving rooms	2019-04-30	2021-05-01		@turt2live
1954	MSC1954: Proposal to remove prev_content from the essential keys list	2019-04-05	2020-04-20		@neilisfragile
1946	MSC1946: Secure Secret Storage and Sharing	2019-03-28	2023-04-12		@uhoreg
1930	MSC1930: Add a push rule for m.room.tombstone events	2019-03-15	2022-08-31		@turt2live
1929	MSC1929: Homeserver Admin Contact and Support page	2019-03-15	2024-06-18		@Half-Shot
1915	MSC 1915 - Add a 3PID unbind API	2019-03-06	2020-04-20		@erikjohnston
1884	MSC1884: Proposal to replace slashes in event IDs	2019-02-13	2020-04-20		@richvdh
1866	Add proposal for invite error code for unsupported room version	2019-02-08	2020-04-20		@erikjohnston
1831	MSC1831: Change the order of .well-known and SRV discovery techniques	2019-01-31	2020-04-20		@turt2live
1819	MSC:1819 Remove Presence Lists	2019-01-28	2020-04-20		@neilisfragile
1813	MSC 1813 - Federation Make Membership Room Version	2019-01-22	2020-04-20		@erikjohnston
1804	MSC1804: Advertising capable room versions to clients	2019-01-17	2020-04-20		@turt2live
1802	MSC1802: Remove the '200' value from some federation responses	2019-01-14	2020-05-19		@babolivier
1794	MSC 1794 - Federation v2 Invite API	2019-01-10	2021-09-22		@erikjohnston
1779	MSC1779: Proposal for Open Governance for Matrix.org (v2)	2019-01-07	2022-05-06		@ara4n
1772	MSC1772: Matrix spaces	2019-01-03	2022-03-01		@ara4n
1759	Room v2 proposal	2018-12-17	2020-04-20		@erikjohnston
1756	MSC1756: cross-signing devices using a master identity key	2018-12-14	2020-12-15		@uhoreg
1753	MSC1753: client-server capabilities API	2018-12-12	2020-04-20		@richvdh
1730	MSC1730: Mechanism for redirecting to an alternative server during login	2018-11-23	2020-04-20		@richvdh
1721	MSC1721: Rename m.login.cas to m.login.sso	2018-11-15	2021-09-22		@richvdh
1719	MSC1719: olm session unwedging	2018-11-14	2024-03-15		@uhoreg
1717	MSC1717: common definitions for key verification methods	2018-11-13	2020-04-20		@uhoreg
1711	MSC1711: X.509 certificate verification for federation connections	2018-11-07	2022-03-01		@richvdh
1708	MSC1708: .well-known support for server name resolution	2018-11-05	2022-12-17		@richvdh
1704	MSC1704: Adding ?via= to matrix.to permalinks to help with routing	2018-10-26	2020-04-20		@turt2live
1693	MSC1693: Specify how to handle rejected events in new state res	2018-10-08	2020-04-20		@erikjohnston
1692	MSC1692: Terms of service at registration	2018-10-03	2024-05-10		@turt2live
1659	MSC 1659 Proposal: Change Event IDs to Hashes	2018-09-05	2020-04-21		@erikjohnston
1544	MSC1544: Key verification using QR codes	2018-08-20	2022-03-01		@uhoreg
1504	Homeserver resource limiting error codes	2018-08-13	2020-04-21	1	@neilisfragile
1501	Room version upgrades	2018-08-10	2020-04-21	1	@richvdh
1497	MSC1497: Advertising support of experimental features in the CS API	2018-08-08	2020-04-21	1	@ara4n
1466	MSC1466: Soft Logout	2018-08-01	2020-05-26	1	@erikjohnston
1452	Homeserver Warning Messages	2018-07-25	2020-04-21	1	@dbkr
1442	State Resolution: Reloaded	2018-07-20	2020-04-21	1	@erikjohnston
1426	Proposal for clarifying and improving review process for MSCs	2018-07-17	2020-04-21	1	@ara4n
1425	Room Versioning	2018-07-17	2020-04-21	1	@richvdh
1383	Proposal for ACLing servers from rooms	2018-07-05	2020-04-21	1	@richvdh, @ara4n
1339	Proposal to add a GET method to read account data	2018-06-24	2020-04-21		@ananace
1323	AS traffic rate-limiting	2018-06-20	2018-08-28	1	@anoadragon453
1304	Proposal to simplify the auth rules of m.room.power_level events.	2018-06-14	2020-04-21	1	@richvdh, @ara4n
1267	MSC 1267: Interactive key verification using short authentication strings	2018-05-28	2020-04-21	1	@uhoreg
1234	Rich Replies format	2018-05-12	2020-04-21	1	@t3chguy
1233	A proposal for organising spec proposals	2018-05-10	2020-04-21	1	@ara4n
1232	Media limits API	2018-05-10	2020-04-21	1	@Half-Shot
1230	Temporary mitigation for depth parameter abuse	2018-05-10	2020-04-21	1	@ara4n
1227	Proposal for lazy-loading room members to improve initial sync speed and client RAM usage	2018-05-10	2020-04-21	1	@ara4n
1219	Proposal for storing megolm keys serverside	2018-05-10	2020-06-02	1	@ara4n, @uhoreg
1212	Device List Update Stream	2018-05-10	2020-04-21	1	@richvdh
1211	Megolm session export format	2018-05-10	2020-04-21	1	@richvdh
1208	Encrypted attachment format	2018-05-10	2020-04-21	1	@NegativeMjark
1207	Publishing Room Lists for 3rd party networks	2018-05-10	2020-04-21	1	@erikjohnston
1205	Proposal for multi-device deletion API	2018-05-10	2020-04-21	1	@richvdh
1204	Access Token Semantics (refresh and macaroons) - aka Auth Sept 2016 Edition	2018-05-10	2020-04-21	1	@richvdh
1203	3rd Party Entity lookup API	2018-05-10	2020-04-21	1	@leonerd
1201	Device Management API	2018-05-10	2020-04-21	1	@richvdh
1200	Configuration of E2E encryption in a room	2018-05-10	2020-04-21	1	@richvdh
1199	Notifications API	2018-05-10	2018-06-25	1	@dbkr
1197	Ignoring Users	2018-05-10	2020-04-21	1	@erikjohnston
1183	Document key-share requests	2018-04-30	2020-04-21	1	@richvdh
1067	Spec @mentions	2017-11-14	2020-04-21	1	@lukebarnard1
1033	Doc @room notifications	2017-10-23	2020-04-21	1	@dbkr
953	Add /user_directory/search API	2017-07-18	2020-04-21	1	@erikjohnston
910	Add new Read Marker API to docs	2017-05-08	2020-04-21	1	@lukebarnard1
855	spec m.login.msisdn UI auth type	2017-03-24	2020-04-21	1	@dbkr
829	Need to spec msisdn login API	2017-03-08	2020-04-21	1	@dbkr
739	Reporting inappropriate content in Matrix	2016-11-21	2020-04-21	1	@ara4n
688	Room Summaries (was: Calculate room names server-side)	2016-07-12	2022-03-01	1	@ara4n
433	Support for discovering API endpoints via .well-known URIs (SPEC-121)	2015-03-08	2022-03-01	1, 2	@maxidor, @thers	@uhoreg

Postponed

MSC	Title	Created at	Updated at	Docs	Author	Shepherd
2190	MSC2190: Allow appservice bots to use /sync	2019-07-24	2022-11-03		@tulir

Abandoned

MSC	Title	Created at	Updated at	Docs	Author
3978	MSC3978: Deprecate room tagging	2023-03-15	2023-03-16		@uhoreg
3969	MSC3969: Size limits	2023-02-18	2023-09-30		@progval
3968	MSC3968: Poorer features	2023-02-18	2024-02-23		@progval
3852	MSC3852: Expose user agent information on `Device`	2022-07-22	2023-01-11		@kerryarchibald
3790	MSC3790: Register Clients	2022-05-09	2022-05-11		@xarvic
3772	MSC3772: Push rule for mutually related events	2022-04-15	2022-10-07		@clokep
3746	MSC3746: Render image data in reactions	2022-02-25	2023-07-06		@AndrewRyanChama
3523	MSC3523: Timeboxed/ranged relations endpoint	2021-11-23	2023-06-01		@turt2live
3302	MSC3302: Stories via To-Device-Messaging	2021-07-31	2021-11-22		@krille-chan
3265	MSC3265: Login and SSSS with a Single Password	2021-07-02	2022-12-12		@cvwright
3137	MSC3137: Define space room type, subset of MSC1772	2021-04-20	2021-04-29		@t3chguy
3125	MSC3125: Limits API — Part 5: per-Instance limits	2021-04-15	2021-08-27		@erkinalp
3074	MSC3074: Proposal for URIs conforming to RFC 3986 syntax.	2021-03-25	2021-03-29		@alexmingoia
3073	MSC3073: Role based access control	2021-03-25	2023-09-19		@erkinalp
3068	[WIP] MSC3068: Compliance tiers	2021-03-18	2021-03-23		@erkinalp
3053	MSC3053: Limits API — Part 2: per-Room limits	2021-03-07	2021-08-27		@erkinalp
3007	MSC3007: Forced insertion and room blocking by self-banning	2021-02-14	2021-02-20		@erkinalp
3005	MSC3005: Streaming Federation Events	2021-02-10	2022-10-21		@ShadowJonathan
2912	MSC2912: Setting cross-signing keys during registration	2020-12-15	2020-12-17		@uhoreg
2880	MSC2880: extend event and state API to allow sending to all rooms	2020-11-27	2021-08-27		@ghost
2875	MSC2875: room descriptions	2020-11-23	2021-08-27		@ghost
2834	MSC2834: Media IDs as hashes	2020-10-26	2021-08-27		@ghost
2810	MSC2810: Consistent globs specification	2020-10-08	2022-03-01		@turt2live
2773	MSC2773: Room kinds	2020-09-11	2021-02-27		@turt2live
2771	MSC2771: Bookmarks	2020-09-10	2022-05-23		@MTRNord
2704	MSC2704: Explicitly allow alternative origins in MXC URIs and specify deduplication requirements on uploads	2020-07-28	2023-12-16		@turt2live
2638	MSC2638: Ability for clients to request homeservers to resync device lists	2020-06-15	2024-03-02		@babolivier
2631	MSC2631: Add `default_payload` to PusherData	2020-06-12	2020-07-07		@ismailgulek
2625	MSC2625: Add `mark_unread` push rule action	2020-06-10	2020-07-01		@richvdh
2579	MSC2579: Improved tagging support	2020-05-25	2020-07-24		@turt2live
2376	MSC2376: Disable URL Previews	2019-12-03	2021-01-14		@Sorunome
2314	MSC2314: A Method to Backfill Room State	2019-10-07	2022-04-14		@hawkowl
2233	MSC2233: Unauthenticated Capabilities API	2019-08-15	2020-04-20		@anoadragon453
2000	MSC2000: Server-side password policies	2019-05-15	2023-02-27		@babolivier
1935	MSC1935: Key validity enforcement	2019-03-20	2020-04-20		@turt2live
1920	MSC1920: Alternative texts for stickers	2019-03-08	2024-03-02		@babolivier
1722	MSC1722: Support for displaying math(s) in messages	2018-11-15	2020-10-19		@uhoreg
1714	MSC1714: using the TLS private key to sign federation-signing keys	2018-11-09	2022-03-01		@richvdh
1700	MSC1700: Improving .well-known discovery	2018-10-19	2022-04-14		@turt2live
1680	MSC1680: cross-signing of devices to simplify key verification	2018-09-20	2020-04-20	1	@uhoreg
1489	Suggested Mentions Proposal	2018-08-06	2020-04-21		@Half-Shot
1217	Visibility of groups to group members and their non-members	2018-05-10	2020-08-21	1	@lampholder
1213	Set defaults for m.federate	2018-05-10	2020-08-26	1	@psaavedra
1209	Server Side Profile API	2018-05-10	2020-08-21	1	@erikjohnston
531	Homeservers as OAuth authorization endpoints (resource owners) (SPEC-206)	2015-07-25	2020-08-21	1	@Kegsay

Obsolete

MSC	Title	Created at	Updated at	Docs	Author	Shepherd
4231	MSC4231: Backwards compatibility for media captions	2024-11-22	2024-11-26		@ara4n
4214	MSC4214: Embedding Widgets in Messages	2024-10-10	2024-10-12		@tcpipuk
4158	MSC4158: MatrixRTC focus information in .well-known	2024-06-20	2024-12-17		@toger5
4123	MSC4123: Allow `knock` -> `join` transition	2024-04-06	2024-05-18		@Kladki
4052	MSC4052: Hiding read receipts UI in certain rooms	2023-09-06	2023-10-06		@cloudrac3r
4037	MSC4037: Thread root is not in the thread	2023-07-13	2023-11-23		@andybalaam
4018	MSC4018: Reliable call membership	2023-05-19	2024-09-13		@robintown
3910	MSC3910: Content tokens for media	2022-10-14	2022-11-04		@richvdh
3906	MSC3906: Mechanism to allow sign in and E2EE set up via QR code	2022-10-13	2024-04-30		@hughns
3903	MSC3903: X25519 Elliptic-curve Diffie-Hellman ephemeral for establishing secure channel between two Matrix clients	2022-10-04	2024-04-30		@hughns
3886	MSC3886: Simple client rendezvous capability	2022-09-07	2024-04-30		@hughns
3862	MSC3862: event_match (almost) anything	2022-08-05	2023-02-06		@Johennes
3859	MSC3859: Add well known media domain proposal	2022-08-04	2022-08-17		@Fizzadar
3760	MSC3760: State sub-keys	2022-03-31	2022-04-13		@andybalaam
3613	MSC3613: Combinatorial join rules	2021-12-31	2022-05-04		@turt2live
3585	MSC3585: Allow the base event to be omitted from `/federation/v1/event_auth` response	2021-12-22	2022-01-06		@richvdh
3517	MSC3517: "Mention" Pushrule	2021-11-21	2023-01-08		@ShadowJonathan
3510	MSC3510: Let users kick/ban/demote each other	2021-11-20	2022-10-24		@ara4n
3464	MSC3464: Allow Users to Post on Behalf of Other Users	2021-10-29	2024-07-29		@sumnerevans
3429	MSC3429: Individual room preview API	2021-10-05	2022-07-19		@turt2live
3306	MSC3306: Counting unread messages	2021-08-02	2021-08-03		@KitsuneRal
3286	MSC3286: Media spoilers	2021-07-18	2022-02-14		@robintown
3282	MSC3282: Expose enable_set_displayname in capabilities response	2021-07-13	2021-07-19		@JonasKress
3279	MSC3279: Expose enable_set_displayname in capabilities response	2021-07-13	2021-07-13		@JonasKress
3270	MSC3270: Symmetric megolm backup	2021-07-07	2024-03-08		@uhoreg
3226	MSC3226: Per-room spell check	2021-05-31	2021-08-30		@afranke
3067	MSC3067: Prevent/remove legacy groups from being in the spec	2021-03-18	2021-05-01		@turt2live
3060	MSC3060: Room labels	2021-03-12	2024-10-12		@babolivier
2876	MSC2876: Allowing widgets to read events in a room	2020-11-24	2021-05-14		@turt2live
2775	MSC2775: Lazy loading over federation	2020-09-14	2022-10-18		@ara4n
2703	MSC2703: Media ID grammar	2020-07-28	2022-10-12		@turt2live
2700	MSC2700: Thumbnail requirements for the media repo	2020-07-28	2023-12-16		@turt2live
2589	MSC2589: Improve replies	2020-05-29	2022-03-01		@turt2live
2516	MSC2516: Add a new message type for voice messages	2020-04-27	2021-12-27		@ludwigbald
2475	MSC2475: API versioning	2020-03-27	2021-09-20		@turt2live
2461	MSC2461: Proposal for Authenticated Content Repository API	2020-03-15	2024-05-15		@SyrupThinker
2390	MSC2390: On the EDU-to-PDU transition.	2019-12-18	2022-04-26		@jevolk
2389	MSC2389: Toward the EDU-to-PDU transition: Typing.	2019-12-18	2022-04-26		@jevolk
2261	MSC2261: Allow `m.room.aliases` events to be redacted by room admins	2019-08-29	2020-04-20		@richvdh
2260	MSC2260: Update the auth rules for `m.room.aliases` events	2019-08-29	2022-03-01		@richvdh
2229	MSC2229: Allowing 3PID Owners to Rebind	2019-08-12	2020-04-20		@anoadragon453
2153	MSC2153: Add a default push rule to ignore m.reaction events	2019-07-04	2022-07-31		@jryans
1958	MSC1958: Widget architecture changes	2019-04-09	2024-05-14		@turt2live
1951	MSC1951: Custom sticker packs and emoji (mk II)	2019-04-04	2024-05-13		@turt2live
1943	MSC1943: Set default room as v3	2019-03-27	2020-04-20		@neilisfragile
1902	MSC1902: Split the media repo into s2s and c2s parts	2019-02-24	2023-11-25		@turt2live
1888	[WIP] MSC1888: Proposal to send EDUs to appservices	2019-02-15	2022-03-01		@Half-Shot
1849	MSC1849: Proposal for m.relates_to aggregations	2019-02-04	2022-11-08		@ara4n
1777	[WIPish] MSC1777: peeking over federation (via server pseudousers)	2019-01-06	2020-10-28		@ara4n
1776	[WIPish] MSC1776: Implementing peeking via /sync	2019-01-06	2020-09-05		@ara4n
1731	MSC1731: Mechanism for redirecting to an alternative server during SSO login	2018-11-24	2020-04-20		@richvdh
1703	MSC1703: encrypting recovery keys for online megolm backups	2018-10-23	2021-06-08		@dbkr
3793	Future Proposal for Cryptographic Challenge Login Flow and E2E Key Backup Recovery	2018-10-18	2022-07-19	1	@ara4n
1695	MSC1695 Message Edits	2018-10-12	2022-03-01		@Half-Shot
1687	MSC1687: Encrypting recovery keys for online megolm backups	2018-09-26	2022-11-08	1	@ara4n
1421	Make a Discourse forum the canonical location for spec discussions	2018-07-16	2020-04-21	1	@non-Jedi
1410	Proposal for Rich Bridging	2018-07-12	2020-04-21	1	@Half-Shot
1324	Custom protocol definitions for application services	2018-06-20	2018-08-30	1	@anoadragon453
3808	Mechanism to communicate 3PID binding updates or deletions to homeservers	2018-06-20	2023-05-13	1	@babolivier
1318	Proposal for Open Governance of Matrix.org	2018-06-20	2020-04-21	1	@ara4n
1310	Proposal for a media information API	2018-06-17	2022-03-01	1	@turt2live
1308	Proposal for speeding up review of simple spec changes	2018-06-14	2022-05-09		@ara4n
3805	Proposal for improving authorization for the matrix profile API	2018-06-13	2024-08-14	1	@turt2live
3804	Mechanisms for communicating erasure requests to bots and federated homeservers	2018-06-05	2022-07-19	1	@richvdh
1270	Proposal Add /_matrix/media/v1/resolve_url to Client-Server API: download and preview urls in the clients despite CORS	2018-05-31	2022-03-01	1	@oivoodoo
1256	Custom emoji and sticker packs in matrix	2018-05-23	2021-07-28	1	@turt2live
1231	Handling Consent for Privacy Policy	2018-05-10	2022-03-01	1	@neilisfragile
1226	State Reset mitigation proposal	2018-05-10	2020-04-21	1	@richvdh
1225	Extensible event types & fallback in Matrix	2018-05-10	2019-01-03	1	@ara4n
1224	Replies - next steps	2018-05-10	2020-04-21	1	@t3chguy
1223	Replies event format	2018-05-10	2020-04-21	1	@t3chguy
1222	Pushing updates about Groups (Communities) to clients	2018-05-10	2021-04-11	1	@ara4n
1220	Rich quoting proposal	2018-05-10	2020-04-21	1	@t3chguy
1215	Groups as Rooms	2018-05-10	2020-04-21	1	@ara4n
1214	Related Groups (i.e. flair)	2018-05-10	2021-05-01	1	@lukebarnard1
1202	Profile Personae	2018-05-10	2020-04-21	1	@erikjohnston
1196	Matrix Escape Hatch (Versioned Rooms)	2018-05-10	2020-04-21	1	@leonerd
1194	A way for HSes to remove bindings from ISes (aka unbind)	2018-05-09	2020-04-21	1	@dbkr
1116	Spec a format for calendar events in rooms.	2018-02-06	2022-03-02		@Half-Shot
971	Add groups stuff to spec	2017-08-10	2022-11-08		@erikjohnston
441	Support for Reactions / Aggregations	2015-03-29	2020-04-21	1	@pik	@ara4n
455	Do we want to specify a matrix:// URI scheme for rooms? (SPEC-5)	2014-09-15	2020-04-21	1	@KitsuneRal

Spec Change Proposals

Guiding Principles

Technical notes

Process

Lifetime States

Categories

Implementing a proposal

Early release of an MSC/idea

Proposal Tracking

Work In Progress

Proposal In Review

Proposed Final Comment Period

Final Comment Period

Finished Final Comment Period

Spec PR Missing

Spec PR In Review

Merged

Postponed

Abandoned

Obsolete