CHANGELOG in rujitsu-0.3.3 vs CHANGELOG in rujitsu-0.4.0

@@ -1,5 +1,9 @@
+= Version 0.4.0 (2017-05-02)
+
+Added ::start_of_this_month, ::start_of_last_month and ::start_of_next_month for Date class (via @worldisaduck)
+
 = Version 0.3.1 (2009-12-04)
 
 rujitsu/grammar now raises the proper rule (one of the most important updates ever)
 
 = Version 0.3 (2009-11-30)
@@ -52,6 +56,6 @@
 
 Added range based random character generation
 
 = Version 0.1.0 (2008-11-22)
 
-Initial Release; random character generation, URL-friendly strings.  
\ No newline at end of file
+Initial Release; random character generation, URL-friendly strings.