What is Gutenberg?
Gutenberg Editor is a brand new editor set to replace the current WordPress Editor. It is intended to upgrade the writing experience within WordPress and will become a part of WP core in version 5.0. While there has been a lot of mixed opinions surrounding the update, the core team is committed to this upgrade, and it is planned to go into effect sometime in 2018.
Whether you’re happy about it and cannot wait to learn the new editor, or you’re going to revert to the old editor asap via a plugin, you should at the very least have an idea of what to expect when the new editor becomes part of WordPress core. If you haven’t already tested Gutenberg, I strongly recommend doing so here at this test site. You can also download and install the plugin onto your own site via the plugin here.