The /_matrix/client/unstable/org.matrix.simplified_msc3575/sync endpoint can be handled by generic workers, but Synapse's workers.md documentation doesn't mention it. The code confirms it's worker-compatible: - SlidingSyncRestServlet is registered via sync.register_servlets: https://github.com/element-hq/synapse/blob/0dfcffab0f/synapse/rest/client/sync.py#L1128-L1131 - sync.register_servlets is NOT in the worker exclusion list: https://github.com/element-hq/synapse/blob/0dfcffab0f/synapse/rest/__init__.py#L180-L194 - GenericWorkerStore includes SlidingSyncStore: https://github.com/element-hq/synapse/blob/0dfcffab0f/synapse/app/generic_worker.py#L168 This adds the endpoint to both: - matrix_synapse_workers_sync_worker_client_server_endpoints (for specialized sync workers with sticky routing) - matrix_synapse_workers_generic_worker_endpoints (documenting generic worker capability)
Slavi Pantaleev