Originally two separate services in Mac OS X Server, for Software Updates and later Content, it reached client versions of macOS in High Sierra in 2017.
Content Caching
There should be an update available, but you can’t find it, or it fails to install, or you have problems with a Content Caching Server. How to tackle these.
You don’t need a large network to make a Content Caching server worthwhile. If you’ve 100 GB or more to spare on an external disk, and a Mac that’s running when others are, give it a try. It’s simple to set up and use.
From the Mac OS Installer app for 9.1 in 2001, through updates in the App Store, to Software Update settings, with Content Caching servers on the way.
When should you turn iCloud off to try to solve syncing problems? What use is a Content Caching server? What tools can help diagnose and fix problems?
When you know an update has been released, but your Mac can’t find it, or you try to install the update but it fails with an error.
Adds support for Sonoma, and removes precautions to deal with broken updates from Content Caching servers.
Of the 16 security software updates in the last 8 months, only 3 have installed correctly. But isn’t the purpose of the Content Caching server to make updates quicker and easier?
How Ventura 13.0.1 played hard to get for some, and ongoing problems successfully installing security data updates make for the fortnightly nightmare.
macOS 13.0.1 is the first small security update to Ventura, although it still seems large. What’s going on, and where are macOS updates heading?
The Eclectic Light Company 