CHANGELOG.txt in omnicat-0.2.0 vs CHANGELOG.txt in omnicat-0.2.1

@@ -1,5 +1,7 @@
 Master Branch
+0.2.1
+# to_hash method delegated to 'hashable' gem
 
 0.2.0
 # bayes classifier moved to another gem which is 'omnicat-bayes'
 # applied 'Strategy Software Design Pattern' for classifiers
 # configuration added with Singleton Software Design Pattern
\ No newline at end of file