Just updated my blog to WordPress v5.9.3 which was a maintenance release with several bug fixes. As always, I backed up my files and database first. I have automatic updates disabled so I can do this beforehand. As I usually do, I updated the local copy on my PC before updating the blog here.
No themes were updated so I didn’t have to do anything to my TwentyTwelve child theme. They haven’t improved the selected text color selection so it’s not hidden slightly behind the right-side settings bar beyond what 5.9.2 did. I made this post about it: [Advanced Editor Tools (previously TinyMCE Advanced)] Text Color Custom Popup below Side Bar. Other than that, the update seems to have gone well. 🙂