diff --git a/CHANGELOG.md b/CHANGELOG.md
index 763676ce..74d95c9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 * Fix: MOVE failing with URL-encoded destination header
 * Improve: add workaround to remove empty lines in item to avoid reject by vobject parser
+* Improve: check/enforce RECURRENCE-ID MUST have the same value type as DTSTART in the recurring component (RFC 5545 3.8.4.4)
 
 ## 3.6.0