Version API
This API returns the running Synapse version and the Python version on which Synapse is being run. 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)",
"python_version": "3.7.8"
}