How To Update Macos High Sierra 10.13.6 To 10.15 |top| Jun 2026

Before you begin, ensure your machine is compatible with macOS Catalina. According to Apple's official support documentation, the following models are supported: 2015 or later MacBook Air: 2012 or later MacBook Pro: 2012 or later Mac mini: 2012 or later iMac: 2012 or later iMac Pro: 2017 or later Mac Pro: 2013 or later (plus mid-2010/2012 models)

macOS Catalina runs on the following Macs (most Macs that ran High Sierra can run Catalina): how to update macos high sierra 10.13.6 to 10.15

This is the most important change between High Sierra and Catalina. Before you begin, ensure your machine is compatible

Once the update is complete, your Mac will guide you through a quick setup. Re-verify your iCloud settings. Re-verify your iCloud settings

High Sierra can still run 32-bit apps, but Catalina cannot. This includes many older versions of popular software, such as Adobe CS apps, Microsoft Office 2011, and numerous games and utilities.