DeviceHowTo
macOS⏱ 15 min

How to Update the Operating System on macOS

Install the latest OS version to get security patches and performance fixes.

Last verified: February 21, 2026

macOS software updates arrive as macOS version updates (major annual releases like Ventura, Sonoma) and as supplemental updates or rapid security responses that can be installed in minutes with only a brief interruption. The recommended approach is keeping automatic security responses enabled (System Settings > General > Software Update > Automatic Updates > Install Security Responses and System Files) while scheduling major OS version updates for when you can afford 20–40 minutes of downtime. macOS updates on Apple Silicon Macs install significantly faster than on Intel Macs due to the integrated recovery system, and the SSD write speeds on newer hardware reduce total update time considerably.

Quick Steps

Follow in order for the fastest result.

  1. 1Click the Apple menu > System Settings > General > Software Update. Click Update Now if an update is listed.
  2. 2Connect to Wi-Fi and plug into power before starting a major update.
  3. 3After restart, check Settings > About for the new OS version number to confirm the update was applied.

Still Not Working?

Try these if the steps above didn't help.

Verify the Fix

Confirm everything is fully working before closing this guide.

Frequently Asked Questions

Why is my macOS OS update taking so long?
macOS downloads are typically 3–12 GB. Apple's update servers experience high load on launch day, causing slow downloads. Try again late at night or a day after release for faster speeds.
Is it safe to use my macOS while an OS update is downloading?
Downloading is safe to continue using the device. The actual installation phase (after download completes) requires restarting and you must not interrupt it. Install updates when you can afford 15–60 minutes of downtime.
What happens if I don't update my macOS OS?
Security vulnerabilities accumulate over time. Operating systems receive regular security patches that close exploits discovered after launch. Running an outdated OS leaves those holes unpatched. After Microsoft or Apple end support for a version, no further patches are issued — at that point the OS becomes genuinely risky for internet use.
Why does my macOS say it's up to date but others have a newer version?
OS updates are typically rolled out in batches rather than to all devices simultaneously. Check manually in Settings and try again in 24–48 hours if nothing is shown.

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