How To: Update Macos High Sierra 10.13.6 To 10.15
However, upgrading isn't just about new features; it's also about leaving some things behind. The most significant change in Catalina is the end of support for 32-bit applications.
The most important detail to know about macOS Catalina is that . It is the first version of macOS to exclusively support 64-bit software. If you rely on older versions of Microsoft Office (like Office 2011), Adobe Creative Suite (CS6 or older), or legacy games, they will completely stop working after this update. How to Find Your 32-Bit Apps on High Sierra: Click the Apple icon () > About This Mac . Click the System Report... button.
Wait a few moments for the list to load, then look at the column labeled .
Because Apple's standard Software Update pane in High Sierra only searches for point-updates within version 10.13, . Step 1: Verify Hardware Compatibility how to update macos high sierra 10.13.6 to 10.15
You need at least 4GB of RAM and approximately 12.5GB to 18.5GB of available storage . 2. Critical Pre-Installation Steps
Once downloaded, the installer will open automatically (named "Install macOS Catalina"). Click . Agree to the software license agreement.
This is the most critical step. A major OS upgrade carries a small but real risk of data loss or a failed installation that could require erasing your drive. If you have a current backup, you can always restore your system to its previous state. However, upgrading isn't just about new features; it's
Before downloading any files, you must ensure your Mac hardware supports macOS 10.15. Catalina requires a , which drops support for many pre-2012 models.
Because macOS Catalina is an older operating system, it will not appear automatically in your High Sierra Software Update panel. You must retrieve it directly from the Mac App Store using a specific link. 1. Download the Installer
Re-enter your Apple ID credentials to sync your iCloud services. It is the first version of macOS to
Use Time Machine to backup your entire Mac to an external hard drive. If something goes wrong, you can restore your files.
Before proceeding, check for 64-bit updates from the software developers, find alternative modern applications, or choose to stay on High Sierra if you absolutely require those specific 32-bit programs. Step 3: Prepare Your Mac (Storage and Backup)
Any application marked with a in the 64-Bit column is a 32-bit app and will not run on macOS Catalina.