release 0.0.4 (2017-11-10)

yaml-validate: write error message to stderr

release 0.0.3 (2017-11-10)

yaml-validate: executable to validate yaml-files

release 0.0.2 (2017-06-09)

Use ByteString (thanks @pbogdan)

release 0.0.1 (2016-01-06)

Initial version