Implement knocking as defined by https://github.com/matrix-org/matrix-doc/pull/2403 This is the base knocking stuff, taken from https://github.com/matrix-org/synapse/pull/6739 and does not include any public room directory changes. While knocking hasn't merged yet on mainline due to waiting on getting Complement into Synapse's CI, the code has been well-tested.
Synapse Documentation
This directory contains documentation specific to the synapse homeserver.
All matrix-generic documentation now lives in its own project, located at matrix-org/matrix-doc
(Note: some items here may be moved to matrix-org/matrix-doc at some point in the future.)