message: Indicate that version 6.0.1 was not used.
diff: @@ -48,6 +48,10 @@ different versioning scheme, following the Haskell community's
  [msdn-stream-canseek]: https://msdn.microsoft.com/en-us/library/system.io.stream.canseek(v=vs.110).aspx
  [msdn-stream-seek]: https://msdn.microsoft.com/en-us/library/system.io.stream.seek(v=vs.110).aspx
  +## 6.0.1 ##
  +
  +This version was not used.
  +
  ## 6.0.0: 2017-06-29 ##
  * `gbc` & compiler library: 0.10.0.0
  * IDL core version: 2.0
  