macOS upgrade readiness check
Five answers: the last version your Mac will receive, a risk level, and the one thing to verify first. Rules come from Apple's published compatibility list, not from opinion.
What each answer means. Chip decides your ceiling and nothing you enter can change it. Intel-only apps are the ones that still need Rosetta to launch. Launchpad is the daily habit Apple removed in macOS 26. Network backup means Time Machine over SMB to a NAS. Office means you depend on Microsoft 365 or Office for Mac for work, which has its own support window.
macOS upgrades stopped being free a while ago. The download costs nothing, but the upgrade can cost you an afternoon, a backup restore, or a working machine on a Monday morning. The risk is not evenly distributed: it depends on your chip, the apps you depend on, and two features Apple removed.
This check takes five answers and returns three things: the last macOS version your Mac will receive, a risk level, and the specific thing to verify before you start.
How the checks are built
Every branch maps to a documented Apple support boundary, not to an opinion.
Chip. macOS 26 (Tahoe) is the final major release that runs on Intel Macs, and only four Intel models are supported by it. macOS 27 and later require Apple Silicon. If you are on Intel, your machine has a hard ceiling, and that ceiling is also the reason the decision is easier than it looks: there is no future version to wait for.
Intel-only apps. Rosetta 2 keeps working through macOS 26 and 27, but from 26.4 apps that launch through it show a warning that they will stop working, and by macOS 28 only a subset remains. If several tools you rely on are still Intel-only, upgrading shortens the runway on work you actually do.
Launchpad. Removed in macOS 26. If your muscle memory is Launchpad, you will notice this every day. Third-party replacements exist; pretending the change is invisible would be dishonest.
Network backup. Backing up to a NAS over SMB broke for some vendors in 26.4 and was fixed in a later release. Before upgrading, confirm your NAS vendor lists the target version as supported, and run one backup immediately after.
Office for Mac. Microsoft supports only the latest three major macOS versions. Upgrade too eagerly and you are fine; stay too long and Office stops receiving updates on your machine.
What this check cannot tell you
It does not know which apps you actually run, so it cannot promise any of them work. It does not know your backup setup beyond the single question. And it cannot see the specific bug that will affect your model, because those are found after release, not before.
The output is a prioritised checklist, not a guarantee.
How to use it
If the result is Low, take a backup and upgrade. If it is Medium, do the two checks it names first, because they are cheap and they are the ones that fail. If it is High, do not upgrade until every dependency has a stated supported version, and keep a bootable installer so you can go back.
The last part matters more than the risk label: on Apple Silicon a rollback is possible but disruptive, and on Intel you may be moving to your machine's final major release, which is a different kind of decision.
When this check does not apply
It is written for a personally owned Mac. If the machine is managed by an employer, the upgrade decision belongs to whoever runs your device management, and installing around that is a policy problem before it is a technical one.
It also cannot see which specific apps you run. Two people with the same answers can have very different outcomes, because one depends on software that ships updates quarterly and the other depends on software that has not been updated in three years.
And it says nothing about beta releases. Running a developer beta is a different risk class with different rollback rules, and none of the branches here describe it.