CHANGELOG.md in humanizer-2.6.3 vs CHANGELOG.md in humanizer-2.6.4

@@ -1,4 +1,8 @@
+### Humanizer 2.6.4 (2017-07-07)
+
+* Prevents NoMethodError when form posts non-existing question id
+
 ### Humanizer 2.6.3 (2016-09-07)
 
 * Added translations: Danish, Serbian & Swedish
 * Additions to French translations