The people who are being impacted are Apple consultants and IT admins who have built troubleshooting toolkits that contain a selection of macOS installers for rebuilding Macs with whatever version of macOS is required. That has happened again, since many, if not all of Apple’s recent installers had an expiration date of 24 October 2019, which came and went last week.įor most Mac users, this kerfuffle is largely irrelevant-if you need an installer for an older version of macOS, you’ll get one that will work when you download it.
On his Der Flounder blog, Rich Trouton explains what happens when these certificates expire-Apple reissues the installers with new certificates. That’s sensible, but there’s a gotcha: the certificates Apple uses to sign these installers have expiration dates.
Redownload Archived macOS Installers to Address Expired CertificatesĪpple digitally signs the installers used by its software updates to ensure that they haven’t been tampered with. #1593: Wordle, vinyl skins for Apple laptops, Apple Music Voice Plan, ad hoc Wi-Fi networks.#1594: iOS 15.2.1, AirTag stalking, CES Tech Trends for 2022.