Upgrading to macOS Sequoia
January 2025 Update: After internal testing by IT, we are generally recommending macOS Sequoia (15) for the Reed Community. If your computer is running macOS Monterey (12) or older, it is no longer supported and must be upgraded now.
- Who should upgrade?
- Pre-upgrade Checklist
- Upgrade Expectations
- How Do I Upgrade?
- Upgrading Will Not Fix Existing Problems
Who should upgrade?
MacOS Sequoia (15) is generally recommended at this time. IT staff have tested and confirmed the most commonly used software is compatible with Reed's environment (i.e., Microsoft Office, Zoom, Papercut printing software, Microsoft Remote Desktop, GlobalProtect VPN, Crashplan backups). If you rely on specific software not listed above, please check the for software compatibility before the upgrade.
Refer to the list of supported Mac operating systems below. If your computer is running Monterey (12) or below, your computer is no longer receiving security updates by Apple and must be upgraded. To find out your version, go to the Apple menu > Â鶹¹ÙÍøÊ×Ò³ This Mac.
| MacOS | Supported/Receives Security Updates | Notes |
| Sequoia (15) | yes | See software compatibility notes below |
| Sonoma (14) | yes | |
| Ventura (13) | yes | |
|
Monterey (12), Big Sur (11), Catalina (10.15) and older |
no | Must upgrade OS; Crashplan backups not supported. Particularly susceptible to viruses, malware, and other exploits. |
Note: Wondering about the difference between the terms "update" and "upgrade"? Not sure what your current operating system version is? Visit Reed's supported operating systems page for details.
Sequoia Software Compatibility
Most commonly used applications at Reed are compatible with Sequoia:
- Web browsers (Firefox, Chrome, Safari, and others)
- Microsoft Office
- Microsoft Remote Desktop (MRD)
- Zoom
- GlobalProtect VPN
- CrashPlan backups
- Papercut printing client
- ScanSnap scanning software
If you rely on specific software not listed above, please check the for software compatibility. If you use any Adobe apps, please refer to their list of
Sequoia Changes
The look and feel of Sequoia is very similar to the previous macOS, Sonoma. If you're upgrading from Monterey or earlier, you'll notice some differences.- "System Preferences" is called "". The layout resembles iOS
- On newer Macs, you will be prompted to that you connect to your computer
- The has a new layout
- The wallpaper, screensaver and lock screens but this can be changed
Pre-Upgrade Checklist
- Are your backups in a good state? If you’re unsure, please ask CUS for help. Employees can check Crashplan on Reed computers.
- Do you have at least 40GB of free space on your hard drive? If not, do not upgrade, as the upgrade may not complete and data loss may occur. Free up space, or talk with CUS first.
- Do you use specialty software that may not have been updated to work with the new OS? Check compatibility at the . If you're unsure, ask CUS before upgrading!
- Are you able to take a break from your computer for about an hour after initiating the upgrade?
Upgrade Expectations
For most users the upgrade could take around an hour, but in some circumstances it can take longer. During the upgrade a black screen might appear for several minutes at a time. Don’t panic! It is important that you do not interrupt the upgrade process once it has begun.
We recommend kicking off the upgrade, then checking back regularly to step through any prompts that have popped up.
Apple may present you with numerous security prompts as you begin working in the upgraded OS. Most prompts require interaction, but will be displayed only one time.
I’m Ready, How Do I Upgrade?
To upgrade, go to the Apple menu > System Settings/Preferences > Software Update. Alternatively, open the App Store application from your Applications folder. Search for "macOS Sequoia", and follow the on screen prompts to download and begin the upgrade. Please note it may take up to half an hour for the installer to download. Once the download is complete, continue to follow the on screen prompts to step through the installation.
If you are on a Reed computer, you may find installers for previous versions of MacOS in the Self Service application. Once you click "Upgrade" it will take some time to download the installer, after which it should open and prompt you to begin the upgrade.
Upgrading Will Not Fix Existing Problems
Upgrading the OS on an already misbehaving computer (slow to start, spinning beachball, etc.) can actually make matters worse. Contact CUS about any issues before performing an OS upgrade.
If you have questions about your backups or software compatibility, please contact Computer User Services before you upgrade. We’ll answer any questions and help make sure things go as smoothly as possible.