How To Update Macos High Sierra 10.13.6 To 10.15 -

Before you begin, there are three critical things you need to know:

2) Verify current system and app readiness

• Apple menu → About This Mac → confirm macOS 10.13.6.
• Open App Store or use developer sites to check your critical apps for Catalina compatibility (Catalina drops 32-bit support). Uninstall or update 32-bit-only apps; find replacements if needed.
• Check firmware/EFI updates applied via Software Update.

• MacBook: Early 2015 or newer
• MacBook Air: Mid 2012 or newer
• MacBook Pro: Mid 2012 or newer
• Mac mini: Late 2012 or newer
• iMac: Late 2012 or newer
• iMac Pro: 2017 (all models)
• Mac Pro: Late 2013 or newer

Step 4: Enter Administrator Credentials

Type your admin username and password.

5.1 – Let Spotlight Reindex

Your cursor may have a spinning beach ball more often initially. That’s Spotlight reindexing your files. Leave your Mac on overnight, or wait 2–3 hours of normal use. To speed it up: System Preferences → Spotlight → Privacy tab → drag your main drive into the list → remove it after 30 seconds to force a fresh index. how to update macos high sierra 10.13.6 to 10.15

To update from macOS High Sierra 10.13.6 to macOS Catalina 10.15, you must first confirm your hardware is compatible. If it is, you can download the installer directly from the Mac App Store. 1. Check Hardware Compatibility Before you begin, there are three critical things