It's been almost two months since
Mojave macOS 10.14 was released and only one update. Don't know the exact update records of previous versions, but that seems respectful of a mature OS. Since the power was out for a short time last night, I might as well bite/bight/byte the bullet and upgrade the Mac mini (2014 model).
I might even leave Amphetamine shut down. After the restart last night, I forgot to re-start Amp, but have not noticed any problems in the last ten hours.
Perhaps the reappearance of the Sun after four days of complete overcast and even a bit of snow(!) has let my euphoria overpower my paranoid attitude about installing
Mojave too soon!
As Alfred E. Newman said, "What?! Me worry?"