The following Macs are compatible with High Sierra:
Apple’s refined graphics API that unlocked external GPU (eGPU) support and advanced machine learning capabilities.
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled Use code with caution. macos high sierra 10136 dmg
By following this guide, you can successfully download, create, and install the macOS High Sierra 10.13.6 update to breathe new life into your older Apple hardware in 2026.
hdiutil create -o /tmp/HighSierra -size 5600m -layout SPUD -fs HFS+J hdiutil attach /tmp/HighSierra.dmg -noverify -mountpoint /Volumes/install_app sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/install_app --nointeraction hdiutil detach /Volumes/install_media hdiutil convert /tmp/HighSierra.dmg -format UDZO -o ~/Desktop/macOS_High_Sierra_10.13.6.dmg rm /tmp/HighSierra.dmg Use code with caution. The following Macs are compatible with High Sierra:
of the High Sierra operating system. While it is a "legacy" OS today, it remains a critical installation for users of older Mac hardware that cannot run newer versions of macOS. Apple Support Community Performance and Stability
Installation notes & precautions
If you downloaded a small 22 MB “stub” installer instead of the full 4.8 GB file, this occurs because Apple now redirects the download to a lightweight online installer.
Press the button while holding down the Option (Alt) key. Release the key when you see the Startup Manager screen. hdiutil create -o /tmp/HighSierra -size 5600m -layout SPUD
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Whether you’re reviving an older Mac or need a stable environment for legacy software, macOS High Sierra 10.13.6