The WordPress 5.0 first Release Candidate is out to test.
WordPress 5.0 features block based post editor named Gutenberg. The new post editor will change the game. All new themes and plugins must support it. Developers of old themes and plugins would have to update to new post editor.
For sites which has outdated themes and plugins will have option to use classic text editor via a plugin. All default themes of WordPress will be updated to support new block based post editor.
Gutenberg is already used by millions of sites to the date.
Happy Blogging 🙂