CHANGELOG.md in mysql_getlock-0.1.2 vs CHANGELOG.md in mysql_getlock-0.2.0

@@ -1,4 +1,10 @@
+# 0.2.0 (2016-08-28)
+
+Enhancements:
+
+* Add #self_locked? to check lock is obtained by myself
+
 # 0.1.2 (2016-08-28)
 
 Enhancements:
 
 * #lock returns true if it successfully acquired a lock