Upgrading dos and don’ts…

> Check all your key apps are known to be compatible with Monterey before upgrading.

Don’t press ahead only to discover that one won’t work for a couple of months yet. This applies particularly to Adobe apps and others whose update cycle lags Apple’s.

Bring those key apps up to date before upgrading. If an app can’t start up properly in Monterey, it’s going to be harder to update later.

Ensure the disk you’re upgrading has ample free space. The installer needs extra room to unpack and prepare macOS 12, and is best given a minimum of 40GB or so to work with.

If you’ve got time, do your housekeeping to remove old apps, duplicates, and unwanted media and other documents before upgrading. This is a perfect opportunity to ditch those movies you’re never going to watch again.