feat: Add support for MSC4560

src/core/matrix/versions.rs

@@ -50,5 +50,7 @@ pub fn unstable_features() -> BTreeMap<String, bool> {
 		("uk.timedout.msc4494".to_owned(), true),
 		// server administration OAuth scope (https://github.com/matrix-org/matrix-spec-proposals/pull/4484)
 		("org.continuwuity.msc4484.unstable".to_owned(), true),
+		// stripped state over federation (https://github.com/matrix-org/matrix-spec-proposals/pull/4560)
+		("org.continuwuity.msc4560".to_owned(), true),
 	])
 }