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Many users seek a high-quality DMG file of this specific version to: Revive older hardware that cannot run newer macOS versions.

Use Disk Utility from the bootable installer menu to format the internal drive as Mac OS Extended (Journaled) first. If the installer stalls, you can pass a command flags structure through the terminal to force the installer to skip the APFS conversion process entirely.

: It resolved a notorious processor throttling bug in 2018 MacBook Pro models and fixed reliability issues in the Mail and Photos apps. How to Get a High-Quality DMG (Official Sources)

Click the link to open in the Mac App Store. Click Get to open the Software Update panel.

Searching the Mac App Store directly often fails on modern macOS versions. For a safe, high-quality download, use these methods: