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Apple stopped issuing security patches for Sierra in 2021. If you use this machine for internet browsing, install a modern third-party browser like Firefox ESR (Extended Support Release) for ongoing security.

If you downloaded a .dmg , double-click it to find the .pkg inside. work download macos sierra 1012 6

If you already have a version of Sierra (10.12.x) and only need to reach 10.12.6, you can download the macOS Sierra 10.12.6 Update directly. 3. How to Install from a .DMG File macOS Sierra | Specs, reviews and EoL info - InvGate Apple stopped issuing security patches for Sierra in 2021

: Open the app from your Applications folder to begin the actual OS upgrade. 3. Compatibility Requirements Ensure your Mac meets these minimum specs before starting: Memory : At least 2GB of RAM. Storage : Minimum 8.8GB of available space. Compatible Models : iMac : Late 2009 or newer MacBook : Late 2009 or newer MacBook Air : Late 2010 or newer MacBook Pro : Mid 2010 or newer Mac mini : Mid 2010 or newer Mac Pro : Mid 2010 or newer How to download and install macOS - Apple Support If you already have a version of Sierra (10