diff --git a/CHANGES.md b/CHANGES.md
index 7ae6de2..b5da380 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,11 @@
 
 All notable changes to this project will be documented in this file.
 
+## 1.0.1
+
+- Ported the library to OCaml 4 (@polytypic)
+- License changed to ISC from 0BSD (@tarides)
+
 ## 1.0.0
 
 - Initial release (@polytypic)