How To Update Macos High Sierra 10.13.6 To 10.15 Jun 2026

Upgrading across multiple generations of macOS requires deep system adjustments. Complete these preparation steps to prevent data loss or broken software environments. The 32-Bit App Warning

Always plug your MacBook into a wall outlet during an OS update to prevent unexpected shutdowns. Step 3: Back Up via Time Machine

Apple removed Catalina’s direct download page from the App Store front page, but the installer is still available. how to update macos high sierra 10.13.6 to 10.15

You have the installer in your Applications folder. Now follow these steps carefully.

If the link above doesn't work or gives you an error, you can try Apple’s built-in software retrieval tool. Upgrading across multiple generations of macOS requires deep

Log in with your Apple ID to restore your iCloud settings, Keychain passwords, and synced data.

: Catalina replaces iTunes with three dedicated apps: Apple Music , Apple TV , and Apple Podcasts . Step 3: Back Up via Time Machine Apple

This is because macOS Catalina is considered an older operating system by Apple and has been pushed to the "Hidden" section of the App Store. You cannot simply click "Update" in System Preferences; you must download the full installer manually.

Open the Safari web browser and access the Apple Support macOS Download Page . Locate and click the link, which will prompt your machine to automatically redirect and open the hidden macOS Catalina App Store Page . 2. Fetch the Installer Files

The following Mac models natively support macOS Catalina 10.15 : : 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 or newer Mac Pro : Late 2013 or newer

Before downloading any files, you must verify that your specific Mac model officially supports macOS Catalina. Supported Mac Models for macOS Catalina 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 or newer Mac Pro: Late 2013 or newer How to Check Your Mac Model Click the Apple icon in the top-left corner of your screen. Select About This Mac .