fabrica-pending-revisions

WordPress plugin that enables updates to published content to be held in a draft state, or to be submitted for moderation and approval before they go live. It makes WP’s native Revisions more accountable by extending the system’s tracking of changes to taxonomy items and featured images, and improves the ‘Compare Revisions’ interface. Maintained by wikitribune on GitHub, where it has earned 25 stars from the community.

It's actively developed around wordpress, wordpress-plugin, editorial, and is a solid reference for anyone building with these tools.