diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6edc63d..0a3587e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# devel
+# 4.0 (2021-05-19)
 
 **Note**: If you do not own Odyssey, everything will work just as before!