Sequoia

2024-12-16

Apple announced macOS version 15, "Sequoia," on 10 Jun 2023.
Apple released macOS 15.0 on 26 Sep 2024.
Apple released macOS 15.0.1 on 09 Oct 2024, fixing a security hole.
Apple released macOS 15.1 on 28 Oct 2024, fixing bugs and introducing "Apple Intelligence" for M-series Macs.

This note describes how to update a computer from an older version of macOS to Sequoia.

The latest version of macOS is version 15.1, "Sequoia", relesed on 28 Oct 2024.

I have not installed Sequoia yet. I don't usually install early versions of new OS releases. When I install Sequoia, I don't plan to enable "Apple AI."

‌Sequoia‌ 15.1 introduces Apple AI features for for Writing Tools, Siri, Focus, Notifications, Mail and Messages, Photos, and Safari.

Features of Sequoia

xxx

(I have no plan to use most of these features.)

See Apple's site macOS Sequoia.

Should I Install Sequoia?

I am waiting.

Installing Sequoia on an Old Mac

A Mac that is too old will not run Sequoia. Many Macs before 2019 are not supported.

What you Should Do Now to Get Ready for Sequoia

Who Can Update

Not everyone can use the new OS version.

Plan your install

When you decide to install Sequoia, do it carefully. You may find that there are issues that affect you: do your homework. Check MacInTouch to see if there are problems with macOS 15 that affect you.

Make sure you back up your entire disk before starting to install Sequoia. Preferably to more than one place.

Make a list of the hardware you depend on, and search the web to check that each device will work. Older printers and scanners can have issues.

Leave yourself enough time. Upgrading will tie up your computer for an hour or so. Your computer may be slow until it re-does the Spotlight index.

Particular issues before upgrading

Here is a partial list of minimum program versions needed for Sequoia. For other programs, check product websites.

ProgramMinimum VersionNotes
Aquamacs Emacs3.6
Audacity3.42
Adobe PhotoshopCC Photoshop CC is $120/yr. See below. (ARM supported.)
Adobe IllustratorCC Illustrator CC is $240/yr. See below. (ARM supported.)
Apple XCode15 free with registration; also install Command Line Developer Tools in Terminal
Little Snitch6.1.1 A new version of Little Snitch is required for Sequoia. (Some Apple traffic such as Maps and ads doesn't show in Little Snitch. This sucks.)
Brother HL-4150CDN driver Brother does not support this printer, according to their website. Support stopped at 10.15.x Catalina. Apple no longer maintains https://support.apple.com/en-us/HT201465 . I have this printer and it is working OK on Sequoia using the CUPS driver.
Brother HL-5450DN driver Brother does not support this printer, according to their website. See above. (Mine works.)
Homebrew4.3.21, same version I had for Sonoma. Replaces MacPorts. This is where I get Perl, ImageMagick, Go, and GraphViz.
Microsoft Office2021 $129
Onyx4.5.6 free
Super Duper3.9.1 You should change all your backup volumes to be APFS. Much faster and more reliable.
Brother P-Touch Editor5.3.13
Banktivity8 $50/yr. Now they want you to upgrade to 9.
Inkscape1.3.2 seems to be fixed.

Adobe: Renting Instead of Buying

Adobe no longer sells regular application versions of Photoshop, Illustrator, and Acrobat. Instead they rent you a Creative Cloud subscription. Stop paying, the apps stop working. They tell you that one advantage is that you'll get bug fixes and new features whenever they decide to release them. (There are a lot of tricky deals, initial teasers, different bundles. You could pay $20/app/mo or $600/yr for all CC apps. Adobe also sells Photoshop Elements 2020 and Premiere Elements 2020 as non-cloud applications for $100 each one-time, or both for $150.)

There are alternatives to Adobe products. I am using Affinity Photo and Affinity Designer.

Affinity has been sold to Canva. Canva's other products are sold by subscription instead of one-time purchase. Ruh-roh.

I want a replacement for Adobe Acrobat: PDFPen ($80) is looking attractive. (There is a program called PDF Expert but its web site does not say how much it costs. I am not going to install it just in order to find out.)

Microsoft: Renting Instead of Buying

Microsoft wants to rent you "Office 365" for $70/yr, $100/yr for up to 6 people. You can still buy a "forever" Home and Student version of Office 2019 for about $130.

Quicken: Renting Instead of Buying

Same story with Quicken. I bought Banktivity and it seems to work.

Banktivity: Renting Instead of Buying

Banktivity has gone from a one-time purchase to a yearly sub. Grrr.

Installing Sequoia

I have not installed Sequoia yet.

  1. Clean up and update software before installing.
    • You can download the Sequoia Installer from  ► System Preferences... ► Software Update. It is free. This downloads a large file, the Sequoia Installer, to your disk. You can create a bootable installer volume on a USB key using these instructions. (But see the TidBits article "Previously Downloaded OS X Installers No Longer Work".) Apple's license terms say you can update all your computers with one purchase.
    • Get the applications on your computer ready for 14.0: apply the latest fixes.
    • Delete junk files. Carefully.
    • Delete Safari, iTunes, and Firefox caches, so your backup will be faster.
    • Write down your settings for applications and system parameters, e.g. your desktop background and screensaver. Some Apple-provided screensaver pictures may not be available in the next version: make a safe copy of anything you will want after upgrading.
    • Empty the Trash.
    • Clean up damaged and duplicate fonts.
    • Have your software license keys handy in case you have to re-authorize products.

    For Programmers

    • If you use MySQL, back up your databases with mysqldump databasename > db.sql. Then stop MySQL.
    • If you are using a local Apache, save a copy of /etc/apache2/httpd.conf.
    • If you installed modules via CPAN, make a list of them.
    • Homebrew often does not need to be reinstalled on a macOS upgrade. If you are changing machine architectures, compilers, etc, then uninstall it and then reinstall Homebrew, and the programs it installs, after updating the OS. To list your ports do brew list > brewmods.txt in a Terminal window.

    Here is a little shell script I run to do the backups.

    	#!/bin/sh
	# PRE-UPGRADE
	# .. run before an OS upgrade
	# .. saves lists of things that may have to be repaired after upgrading
	#
	# dumps them into $HOME/Documents/preup so that they will be synced to iCloud
	if [ -d $HOME/Documents/preup ] ; then
	  cp /etc/apache2/httpd.conf $HOME/Documents/preup/saved.httpd.conf
	  perldoc perllocal | grep :: > $HOME/Documents/preup/cpan_modules.txt
	  brew list > brewmods.txt
	  mysqldump mydatabase > $HOME/Documents/preup/mysql_dump.sql
	  echo "Back up your hard drive"
	else
	  echo "$HOME/Documents/preup not found.. create it and rerun"
	fi
	#
  2. Backup and prepare.
    • BACK UP YOUR HARD DRIVE to an external disk. I used SuperDuper to clone my whole drive. Some cautious people make two backups.
    • If you are using an anti-virus product like Microsoft Defender ATP, disable it, or installation will fail. Some anti-malware programs see the utility that converts HFS to APFS as malware, and prevent it from running. Since most anti-virus software is tightly integrated with the operating system, you may have to install a Sequoia-specific version of your software after installing Sequoia anyway. Check with the maker of your software.
    • If you connect your Mac to the network using Wi-Fi, select  ► System Preferences... ► Network ► Wi-Fi and delete any Wi-Fi networks you don't want to use. (If you don't, your computer could connect to a very slow network during installation, which will slow down your install.)
  3. Install
    • If you use a wireless mouse or keyboard, put in fresh batteries.
    • Set screen saver to NEVER, and turn off Time Machine.
    • Dismount and unplug or power off external drives.
    • Restart your computer. (I've had problems where my computer hangs on shutdown. Restarting seems to fix it for a while. Don't want this trouble when installing a new OS.)
    • Run the Sequoia (macOS 15.0) installer. If you downloaded it, use that copy. Or you can just select  ► System Preferences... ► Software Update and install by clicking on the link.
      • If FileVault is enabled on your computer, the installer will ask for a password to unlock the disk.
      • The installer will run for about 15 minutes, then reboot, then run for about half an hour, then reboot again. Might ask for your password again.
      • The "time remaining" will show wildly varying estimates as the installer proceeds.
      • Eventually you will be presented with a login screen; enter your password.
      • You may see a window about privacy.
      • Next you will be asked if you want to send analytic information to Apple. I usually say no.
      • Then the system will display your desktop. All your files and applications should be there.
      • You may be asked for your Apple Account (used to be called AppleID) and password at least once.
    • If Sequoia asks you if you want to "enable Desktop and Documents folder syncing to iCloud," you can say NO, and turn it on later. I say YES and use iCloud for this and it seems to be great.. but I had to move things around to make it work right. If you say YES, these folders will be backed up in iCloud and available on all devices, which you may not want. Saying YES may also enable "Optimize Storage" without asking, which will delete files from your computer's drive if it gets too full -- I do not enable this. Check  ► System Settings... ► Internet Accounts ► iCloud ► Optimize Mac Storage to make sure it is OFF. Adam Engst's TidBITS article on Optimized Storage is very helpful.
    • Once the install has completed, use  ► System Settings... ► General ► Software Update and  ► App Store... to make sure you have installed the latest versions of Apple software. This step may find additional OS and application updates (might take another hour).
    • Do a "smoke test" to verify that your computer is working OK: make sure the applications you depend on are still working. Try out the applications from Apple that were updated with the OS. If you have trouble, restore your backup and go back to the old OS version.
  4. Recover
    • Wait for Spotlight to finish indexing (may take several hours). Performance will suck till it finishes.
    • Turn on Time Machine and start your backup.
    • Restart the computer. Often this speeds things up.

Post Install Tasks

Once you are satisfied that your computer works acceptably, and you are going to stay on Sequoia, you can make some adjustments.

Customization

You will probably want to set up per-user customizations, such as your desktop background and screensaver. Visit every setting in  ► System Settings... and make sure it is what you want, and choose values for new settings. After each new OS generation this is something of an adventure; functions get renamed and moved around. See below.

Devices

Sequoia Observations

to be supplied

Bugs and Surprises in Sequoia

to be supplied

New Sequoia Features I Am Not Using Yet

to be supplied

Planning for the next version

The next macOS version will released in Fall 2025.

Keep a list of the software and devices you use and depend on, so you can check that they are supported.

Home | FAQ © 2010-2024, Tom Van Vleck updated 2024-12-16 13:06