CHANGELOG.md in trema-0.5.0 vs CHANGELOG.md in trema-0.5.1

@@ -1,9 +1,14 @@
 # Changelog
 
 ## develop (unreleased)
 
 
+## 0.5.1 (8/4/2015)
+### Bugs fixed
+* [#396](https://github.com/trema/trema/issues/396): `send_flow_mod_add` doesn't allow `:idle_timeout` and `:hard_timeout` options.
+
+
 ## 0.5.0 (8/2/2015)
 ### Changes
 * [#392](https://github.com/trema/trema/pull/392): Allow packet_in, etc during startup.