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This documentation site is for the versions of Synapse maintained by the Matrix.org Foundation (github.com/matrix-org/synapse), available under the Apache 2.0 licence.

Since version 1.99, Synapse is now maintained by Element under a new licence (github.com/element-hq/synapse).

If you are interested in the documentation for a later version of Synapse, please click here to navigate to this same page on the latest Element Synapse documentation site, if it's available.

Version API

This API returns the running Synapse version. This is useful when a Synapse instance is behind a proxy that does not forward the 'Server' header (which also contains Synapse version information).

The api is:

GET /_synapse/admin/v1/server_version

It returns a JSON body like the following:

{
    "server_version": "0.99.2rc1 (b=develop, abcdef123)"
}

Changed in Synapse 1.94.0: The python_version key was removed from the response body.