Revisionary is a WordPress plugin that has been around for nearly 10 years.
Revisionary allowed you to moderate or schedule changes to published posts.
The plugin was first launched in 2009 and had been starting to show its age in recent year. Fortunately, the plugin just had a major new update and it now looks ready for WordPress in 2019.
Revisionary is now called "PublishPress Revisions" but you can still find it at the same place on WordPress.org.