diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed83675..66a4b93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 ### Added
+- Toplevel compile-time constants
+  ```
+  namespace N =
+    let nc = 1
+  contract C =
+    let cc = 2
+  ```
 ### Changed
 ### Removed
 ### Fixed