Just updated my blog to WordPress v6.4.1 which is a maintenance release fixing 4 regressions introduced in version 6.4. 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.
My TwentyTwelve parent theme was not updated so I did not have to worry about anything affecting my child theme. So far the update seems to have gone well. 🙂