So, I clicked “install” (above) and my iMac dutifully installed this/these mysterious mystery files. My own research lead to the conclusion the mystery software was some “XCode” update…?
Anyway, now my iMac will not boot. I’ve been stuck with the Apple icon and fully loaded bar for about an hour. Whatever this, these files are, they appear to have bricked my iMac, which was purring along fine for the last 4 years.
WTF?