diff --git a/changelogs/client_server.rst b/changelogs/client_server.rst
index 852c41f5..84360de0 100644
--- a/changelogs/client_server.rst
+++ b/changelogs/client_server.rst
@@ -1,3 +1,6 @@
+Unreleased changes
+==================
+
 r0.3.0
 ======
 
diff --git a/specification/client_server_api.rst b/specification/client_server_api.rst
index 09f73bb9..b28e3036 100644
--- a/specification/client_server_api.rst
+++ b/specification/client_server_api.rst
@@ -46,6 +46,7 @@ Other versions of this specification
 The following other versions are also available, in reverse chronological order:
 
 - `HEAD <https://matrix.org/docs/spec/client_server/unstable.html>`_: Includes all changes since the latest versioned release.
+- `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>`_