README.md in smartsend-ruby-0.5.0 vs README.md in smartsend-ruby-0.5.1

- old
+ new

@@ -151,9 +151,13 @@
   => false
 ```
 
 ## Changelog
 
+### [0.5.1] - 2018-05-25
+* Compare parcel ids as string
+* Abillity to log requests
+
 ### [0.5.0] - 2018-05-15
 * Find label by tracking_code
 
 ### [0.4.3] - 2018-05-03
 * Using prod url