CHANGELOG.md in avro-builder-0.14.1 vs CHANGELOG.md in avro-builder-0.15.0.rc0

@@ -1,6 +1,9 @@
 # avro-builder changelog
 
+## v0.15.0
+- Add support for declaring types as abstract.
+
 ## v0.14.1
 - File handling fixes.
 
 ## v0.14.0
 - Allow `filetype` to be specified in rake task to generate Avro JSON schema