diff --git a/CHANGELOG.md b/CHANGELOG.md
index 115ed3886..e71d253db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 ## 0.5.0 (unreleased)
 
+IMPROVEMENTS:
 
+* core: Plugins communicate over a single TCP connection per plugin now,
+  instead of sometimes dozens. Performance around plugin communication
+  dramatically increased.
 
 ## 0.4.1 (December 7, 2013)