---
title: Historical versions
type: docs
outputs:
  - html
---

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)
