Catalina upgrade may fail to update EFI firmware correctly in some Mac models, notable iMac17,1. Check your firmware!
upgrade
Seen the reports that Apple Support recommends not installing 10.15 on new Mac minis? Well, they’re just another fake.
The third successive macOS upgrade brings fundamental changes which could so easily have resulted in catastrophe. How did Apple pull it off?
For the moment, firmware versions for updated Macs are different between those running Catalina, and those running Mojave earlier. How could this affect Sierra, though?
macOS 10.15 Catalina brings EFI firmware updates for all supported models, and subsequent updates have changed those for […]
Apple has just released the first version of macOS 10.15 Catalina. For those running recent versions of macOS, […]
Coming in just a few weeks now, if you’re going to upgrade early to Catalina, now’s the time to start preparing with these tips.
Are you an early adopter, or a cautious delayer? Here’s some advice about the forthcoming upgrade to Catalina to help you decide.
When you can’t install what the App Store offers: solutions for downloading and installing older versions of macOS for use with Catalina.
The Catalina upgrade promises to be the most complex for years, catering for loss of 32-bit support and its read-only file system. How are you planning to upgrade?
The Eclectic Light Company 