This morning, the Mac App Store shows me the following updates:
I don’t think I really need to install these updates. In fact, I can’t. I had clicked Update All without noticing which updates were available, and was told that I couldn’t update everything.
Obviously, this is a glitch, but a strange one. I’m sure a lot of Mac users who don’t know exactly which version of macOS they have on their computers will be a bit flustered by this.
Update: a few hours later, these updates are no longer visible.