diff --git a/README.md b/README.md
index e0b5ef749..cb723e813 100644
--- a/README.md
+++ b/README.md
@@ -23,8 +23,8 @@ after the full release.
   request body. If the room ID is already in use, it will return `M_CONFLICT`.
 * ~~URL previewer user agent includes `Bot` so Twitter previews work properly.~~
   Upstreamed after over 2 years 🎉
-* Local event creation concurrency is disabled to avoid unnecessary state
-  resolution.
+* ~~Local event creation concurrency is disabled to avoid unnecessary state
+  resolution.~~ Upstreamed after over 3 years 🎉
 * Register admin API can register invalid user IDs.
 * Docker image with jemalloc enabled by default.
 * Config option to allow specific users to send events without unnecessary