diff --git a/CHANGELOG.md b/CHANGELOG.md
index c08d6532..1145a062 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 Features
 
 - Allow the `-A` and `-I` options to `icyc`, for specifying additional library import directories.
+- Perform constant folding as part of the CPS optimization phase.
 
 Bug Fixes