How To Update Macos High Sierra 10.13.6 To 10.15 _hot_

Catalina needs at least , but aim for 30–40GB for smooth installation.

Old network kexts from High Sierra remain. Fix: Go to System Preferences → Network → Click Wi-Fi → Advanced → Remove all saved networks → Apply → Re-add your network. For Bluetooth, delete /Library/Preferences/com.apple.Bluetooth.plist and restart. how to update macos high sierra 10.13.6 to 10.15

If your Mac supports it (2013–2019 models generally do), upgrade to macOS Monterey (12) or Ventura (13) for continued security patches. Use the same App Store method. Catalina needs at least , but aim for