WordPress 5.0 was released in November 2018, and it came with a new page editor called Gutenberg. The Gutenberg editor replaced the classic TinyMCE editor in page and post creation.
Classic (TinyMCE) Editor vs Gutenberg Editor
The Gutenberg editor changed how you create WordPress posts and pages. Instead of adding text and media to a single content window, Gutenberg let you add any number of content blocks, to a page or post.
