Sorry to hijack this thread to ask - but what is the current state of sliding sync? Does it still require a separate proxy service to enable sliding sync if you're self-hosting a homeserver; or is it upstreamed into synapse? Also is there a list of clients that are sliding sync aware?
Not that many clients have actually adopted it though, because the MSC is still not 100% finalised - it's currently entering the final review stages at last now over at https://github.com/matrix-org/matrix-spec-proposals/pull/418.... Right now Element X uses it (exclusively), and Element Web has experimental support for it; I'm not sure if any others actually use it yet.
