diff --git a/CHANGELOG.md b/CHANGELOG.md
index 88480ffccf0..362f792613f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 ## 0.30.2
 
+* `Coroutines`:
+  * `SmartRWLocker`:
+    * Fix of `unlockWrite`, `lockWrite` and `releaseRead` calls to pass correct number of permits
+  * `SmartMutex`:
+    * Fix `unlock` call
+  * `SmartSemaphore`:
+    * Fix same issues to avoid cancellation exceptions handling errors and several other problems
+
 ## 0.30.1
 
 * `Versions`: