After the update completes, your Mac will boot into macOS Catalina.
Open your web browser and navigate to the official Apple Support page for older macOS versions, or click the direct Mac App Store link for macOS Catalina.
If you rely on old versions of Microsoft Office, Adobe Creative Suite, or legacy games, they will stop working after this update. how to update macos high sierra 10136 to 1015
Search for "macOS Catalina" in the App Store.
Pros of upgrading
Your System Preferences will open to the Software Update pane, and a download prompt will appear. Confirm the download.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. After the update completes, your Mac will boot
: Ensure you have at least 15 GB to 20 GB of free storage space on your hard drive to prevent installation loops.
To check space: Go to . Back Up Your Data (Time Machine) Search for "macOS Catalina" in the App Store