The right time to update a work Mac is when you can finish the installation and verify the tasks that matter. Clicking an upgrade button immediately before a deadline leaves little room to resolve an application or peripheral compatibility problem.

Separate the update from the work plan

Record the current macOS version and check what Software Update is offering. In current System Settings layouts, open General, then Software Update. Apple offers releases compatible with the Mac model; “up to date” does not necessarily mean every Mac is eligible for the same major version.

Before a major upgrade, check the published compatibility requirements of essential applications and connected hardware. Pay particular attention to accounting packages, audio interfaces, specialist printer software and any work VPN. Ask the administrator before changing a managed Mac.

Complete a backup and make sure you know how to access it. Save open work, have the required administrator credentials available and choose a period when interruptions will not put a job at risk. Keep a note of the applications or devices you need to retest.

Let installation finish, then verify

Apple advises allowing installation to complete without putting the Mac to sleep or closing its lid. Restarts and temporary blank screens can form part of the process. Read displayed errors rather than repeatedly forcing restarts because a screen looks unfamiliar.

After logging back in, confirm the installed version. Open a real working document, perform a small print or scan if that matters to you, and test your usual display, network and meeting setup. Check that your backup arrangement still reports a recent successful run.

If one application now fails, record its name, version and error before changing several settings at once. A focused record helps distinguish an app compatibility issue from a wider problem and gives the software vendor useful evidence.

Source: Apple's Software Update instructions.

For help with your Mac, contact AEPC in East Auckland or call 027 908 8880 to discuss your requirements.