The only way to see a difference between the macOS 14.6 Supplemental update earlier this month (Aug 2, 2019) and the "Emergency" macOS 14.6 Supplemental this week, is to look at the file size info. Apparently, Apple managed to re-introduce a security bug in the earlier Supplemental update. So, even if you installed
a "Supplemental" update recently, you should
re-visit Apple's site and download and install it again. The earlier "Supplemental" update weighed in at 954,791,166 bytes. The new "Supplemental" is significantly larger at 1,262,252,749 bytes.
Apple actually released macOS Mojave 10.14.6 Supplemental Update a few weeks ago, saying at the time that it fixed ?an issue that may prevent certain Macs from waking from sleep properly??see ?macOS Mojave 10.14.6 Supplemental Update? (2 August 2019). Apple?s description now says that this updated version ?resolves an issue that may cause certain Mac notebooks to shut down during sleep.?
Software Update may or may not report your
Mojave macOS 10.14.6 as "up to date". The only way to know for sure is to re-visit the
Supplemental download page and run the installer.
Despite my reluctance to allow automatic detection and installation of OS updates, I have turned that function on for my Watch, iPhone and Apple TV. (My iPad is so old it hasn't been updatable since iOS 9 something!
). I am still n ot allowing that on my iMac!
Personally, I think it is less than courteous of Apple to create fixes and use exactly the same name for more than one of them. Apparently they are assuming that we simply allow automatic updates of critical software...
despite the their own mistakes of providing "updates" that include old problems and security risks! Where is quality control?! Why was old, proven vulnerable code allowed to be near to published updates?! Where is versioning control/verification?!
"Who's on first?..."