---
title: Changelog
type: docs
weight: 1000
---
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Historical versions
Before version 1.1, versioning was applied at the level of individual API specifications. This section includes links to these versions of the APIs.
* **Client-Server API**
- [r0.6.1](https://matrix.org/docs/spec/client_server/r0.6.1.html)
- [r0.6.0](https://matrix.org/docs/spec/client_server/r0.6.0.html)
- [r0.5.0](https://matrix.org/docs/spec/client_server/r0.5.0.html)
- [r0.4.0](https://matrix.org/docs/spec/client_server/r0.4.0.html)
- [r0.3.0](https://matrix.org/docs/spec/client_server/r0.3.0.html)
- [r0.2.0](https://matrix.org/docs/spec/client_server/r0.2.0.html)
- [r0.1.0](https://matrix.org/docs/spec/client_server/r0.1.0.html)
- [r0.0.1](https://matrix.org/docs/spec/r0.0.1/client_server.html)
- [r0.0.0](https://matrix.org/docs/spec/r0.0.0/client_server.html)
- [Legacy](https://matrix.org/docs/spec/legacy/#client-server-api):
The last draft before the spec was formally released in version
r0.0.0.
* **Server-Server API**
- [r0.1.4](https://matrix.org/docs/spec/server_server/r0.1.4.html)
- [r0.1.3](https://matrix.org/docs/spec/server_server/r0.1.3.html)
- [r0.1.2](https://matrix.org/docs/spec/server_server/r0.1.2.html)
- [r0.1.1](https://matrix.org/docs/spec/server_server/r0.1.1.html)
- [r0.1.0](https://matrix.org/docs/spec/server_server/r0.1.0.html)
* **Application Service API**
- [r0.1.1](https://matrix.org/docs/spec/application_service/r0.1.1.html)
- [r0.1.0](https://matrix.org/docs/spec/application_service/r0.1.0.html)
* **Identity Service API**
- [r0.3.0](https://matrix.org/docs/spec/identity_service/r0.3.0.html)
- [r0.2.1](https://matrix.org/docs/spec/identity_service/r0.2.1.html)
- [r0.2.0](https://matrix.org/docs/spec/identity_service/r0.2.0.html)
- [r0.1.0](https://matrix.org/docs/spec/identity_service/r0.1.0.html)
* **Push Gateway API**
- [r0.1.0](https://matrix.org/docs/spec/push_gateway/r0.1.0.html)