How To Update Macos High Sierra 10136 To 1015 Instant

Not every Mac that runs High Sierra can run Catalina. Before you proceed, verify your Mac model.

CRITICAL: macOS Catalina does not support 32-bit apps. If you rely on old versions of Microsoft Office or Adobe Creative Cloud, they will stop working after the update. how to update macos high sierra 10136 to 1015

Post-upgrade checklist

The installer will guide you through the process. Your Mac might restart several times during the installation. Not every Mac that runs High Sierra can run Catalina