WordPress 5.9 has been released! Among a few smaller changes, WordPress 5.9 introduces full site editing, which is bound to turn some heads. For specifics, check out the changelog.
624 volunteers contributed to this release, and at the time of writing this, WordPress 5.9 has been out for just a bit over a day, and has already been downloaded 2,520,582 times!
All users can safely update from Dashboard -> Updates or download and update manually, though you should probably backup first just in case, unless you’re already using Jetpack Backup, which you really should be.
One quick personal recommendation, if you’re having trouble with the new full site editor, you may simply be using the wrong theme, trying to make it fit a purpose it wasn’t designed for. Try a different theme instead to find out.
If you run into any problems, stop by the known issues first, and if it’s not covered there, please let us know in the support forums!