Warning: This is beta software, do not run on production sites! Requires WordPress 4.9-beta2 or newer and Gutenberg plugin 1.5 or newer. Classic Editor restores the previous Edit Post screen and makes it possible to use the WordPress plugins that extend it, add old-style meta boxes, or otherwise depend on the previous editor. It has two modes: Fully replaces the Gutenberg editor and restores the Edit Post template. Adds alternate “Edit” links to the Posts and Pages screens, on the toolbar at the top of the screen, and in the admin menu. Using these links will open the corresponding post or page in the Classic Editor. The modes can be changed from the Settings -> Writing screen. See the screenshots. The current release is intended for testing with the Gutenberg plugin version 1.5 or newer.