=== 1.4.0 / 2019-01-04

  * Support to build with Ruby 2.6.

=== 1.3.0 / 2017-05-02

Compatibility Changes:

  * Removed `YAML::EngineManager`. It's not working after Ruby 2.2.
    We completely gave up to support it.

=== 1.2.0 / 2016-11-12

Bug fixes:

 * Fix build error with Ruby 2.4.0

=== 1.1.0 / 2016-03-22

Bug fixes:

 * Fix broken tests with Ruby 2.0.0 or later.

Enhancements:

 * Skipped Syck specific methods on Psych engine.

Known issues:

 * Can't switch back to Psych.

=== 1.0.0 / 2012-09-24

* 1 major enhancement

  * Birthday!
