CHANGELOG.md in suo-0.1.0 vs CHANGELOG.md in suo-0.1.1

@@ -1,3 +1,8 @@
+## 0.1.1
+
+- Use [MessagePack](https://github.com/msgpack/msgpack-ruby) for semaphore serialization.
+
+
 ## 0.1.0
 
-- First release
+- First release.