diff --git a/CHANGELOG.md b/CHANGELOG.md
index c92533e..76adc26 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 - Don't allow previewing `shared` history rooms, https://github.com/matrix-org/matrix-public-archive/pull/239
   - Contributed by [@tulir](https://github.com/tulir)
 - Update FAQ to explain `world_readable` only, https://github.com/matrix-org/matrix-public-archive/pull/277
+- Indicate when the room was set to `world_readable` and by who, https://github.com/matrix-org/matrix-public-archive/pull/278
 
 Developer facing: