How Catalina and Big Sur handle the first run of apps which have their quarantine flag set. With details of log entries seen in both steps needed for approval.
macOS 11.0 Big Sur brings EFI firmware updates for all supported models. This article lists the firmware versions […]
How macOS checks executable code before it’s loaded and run, in macOS 10.15 and 11.0. Covering integrity checks using hashes, and validity of the signing certificate, on Intel and ARM.
A summary of all the macOS updates released over the last three days, to help you catch up with any you’ve missed.
Volume layouts are fairly straightforward until you have two or more bootable systems with Volume Groups. Details and advice for those with macOS 10.15 or 11.
Apple has just released macOS Catalina 10.15.7 Supplemental Update, which weighs in at around 1.2 GB and includes […]
New version can display contents of all system updates for Catalina and Big Sur’s boot volume group, at last.
The update to MRT 1.68 has caused problems with many Macs. Even if their cause is discovered, fixing them is usually long and complex. That silent security update is causing a denial of service.
Many users are today reporting that their HP printer software has suddenly stopped working, with worrying messages implying […]
Looking in more detail at newer tricks used by APFS on the data of files: sparse files, which can squeeze vast empty files almost to nothing; file clones; and compression, opening up in Big Sur.