A new editor for WordPress – Gutenberg.
A major WordPress update has started rolling out – version 5. It introduces a new editor for pages and news posts, called Gutenberg.
Gutenberg makes it easier to create complex layouts, such as arranging text in columns, and adding media. Gutenberg is of course more complex than the old ‘classic’ editor, so if you are thinking of using it it’s worthwhile investing some time in learning how it works. There’s more about it here.
If you prefer the classic editor, or simply don’t have the time to learn Gutenberg, then simply install a plugin called Classic Editor which hides Gutenberg.