Yeah! I am writing this post in all new Advanced Editor! this looks very COOOL! 🙂 A new layout with a lot of new editing features.
What are the blocks?
The new catch here is Blocks! There is plus sign you will be able to see it everywhere. It can appear anywhere seriously anywhere 😐 When you click on this plus, you will see a list of block options you can add to the post.
Types of Blocks Available!
There are many type ob block types available with a search box. You ca add a Paragraph, Image, Heading, Gallery, List, Quote, Audio etc ……

These formatting options in the above image, they are handy
Color and Font Settings
New options added for Font Size and Colors options

Categories and Tags
Categories, Tags and other option you can find under Document tab on right top side

What? Don’t like it?
It’s good nice great looking 😀
Now get back to work just install Classic Editor plugin to see old but gold Classic Editor 😛
See Code Editor instead of WYSIWYG
Click on the top right three dots then select Code Editor.