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Take Control of Sequoia cover
ISBN:978-1-990783-52-4
Version:1.2
Pages:200
Size (PDF):5.7 MB
Date:April 29, 2025
Get up to speed quickly with macOS 15!

Take Control of
Sequoia

Joe Kissell

macOS 15 Sequoia is one of Apple’s most ambitious updates in years. Along with the usual range of new features, it introduces Apple Intelligence, which permeates many parts of the system and fundamentally changes the sorts of things you can do with your Mac and how you do them. This book is your complete guide to what’s new in Sequoia.

All Take Control books are delivered in two ebook formats—PDF and EPUB—and can be read on nearly any device. We do not sell printed books.

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  • Description
  • What’s New
  • Table of Contents
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Sequoia adds a great many features to macOS, although some of them didn’t appear until later releases. This book, now up to date through version 15.4.1, covers all the changes so far. You’ll learn about Apple Intelligence capabilities, new window tiling features, iPhone mirroring, videoconferencing tools, the much-discussed Passwords app, how Siri is becoming more powerful, new ways of formatting messages in the Messages app, additional features in Notes, among other changes. Joe also walks you carefully through the upgrade process from earlier versions of macOS.

This book teaches you things like:

  • How to tell whether your Mac is compatible with Sequoia
  • Steps you should take before upgrading
  • How to perform an in-place upgrade—or do a clean install and migrate your old data from a backup
  • What’s new in the System Settings app
  • Using new Safari 18 features, such as page highlights, a redesigned Reader view, a tool to remove distracting page elements, and a new video viewer
  • What Apple Intelligence can do so far (including Siri changes, ChatGPT integration, writing tools, and image generation)
  • The many ways you can now tile your windows, and how to turn off the annoying bits
  • What the new Passwords app can and can’t do (and why it probably won’t replace your current password manager)
  • Using the new iPhone Mirroring app to interact with your iPhone right on your Mac’s screen
  • How to enhance video calls (using apps like FaceTime, Zoom, or Slack) with background replacement and better screen sharing controls
  • Ways to format text and add animations in Messages, plus smart replies, scheduled replies, and emoji or sticker tapbacks
  • New ways to use Notes, including new text formatting options, transcription of live audio, collapsible sections, and text highlighting
  • How to use Math Notes for calculations without a calculator or spreadsheet (and not just in the Notes app)
  • Small but interesting changes throughout macOS, such as accessibility improvements and new capabilities for AirPods
  • Improvements to bundled apps, including Calculator, Calendar, Finder, Freeform, Home, Mail, Maps, Music, Photos, Podcasts, Reminders, TV, and Weather
Photo of Joe Kissell

About Joe Kissell

Joe Kissell is the author of more than 75 books about technology. In 2017, he also became the publisher of Take Control Books, when alt concepts—the company he runs with his wife, Morgen Jahnke—acquired the Take Control imprint from TidBITS Publishing Inc.’s owners, Adam and Tonya Engst. Before he began writing full-time in 2003, Joe managed software development, a totally normal profession for someone with degrees in philosophy and linguistics.

In his rare non-work hours, Joe likes to walk, cook, read, and teach tai chi. He lives in Saskatoon, Saskatchewan, Canada, with Morgen and their sons. You can follow him on Mastodon (@joekissell) or Bluesky (@joekissell.com), or visit his personal website, JoeKissell.com.

What’s New in Version 1.2

Due to [long, boring story of life’s woes omitted], a few updates of Sequoia came and went without corresponding updates to this book. I’m sorry it took a while, but version 1.2 of this book catches us up to the many changes that happened from Sequoia 15.0.1 through 15.4.1. The major highlights are:

  • Added a note about using multiple displays in “Tile Windows by Dragging”
  • Added information about changing keyboard shortcuts for tiling in “Tile Windows with Keyboard Shortcuts”
  • Added a clarification about authentication prompts and described dragging things from one device to another in “Mirror Your iPhone Screen on Your Mac”
  • Explained how to see a preview of a Keynote presentation before sharing it with FaceTime or another videoconferencing app in “Use Play Preview”
  • Added information about ChatGPT settings in “Apple Intelligence & Siri Settings”
  • Updated the “Discover Apple Intelligence” chapter to: cover newly supported languages, the addition of ChatGPT (see “A New Siri Interface”), and expanded writing tools (see Writing Tools); include information on Image Playground and Genmoji; and mention Notification Summaries
  • In “Meet Safari 18,” updated View Page Highlights and Peruse the Redesigned Reader to reflect post-15.0 changes, and added a new topic: Link to a Specific Spot
  • Updated the “Do More with Messages” chapter with the new topic, “Use Emojis and Stickers More Easily”
  • Expanded “Use Math Notes” to cover Apple’s wacky new way of adjusting numbers in an equation
  • Added Hearing Protection to the list of new AirPods Pro 2 features
  • In “Quick Start,” explained how Apple is simplifying the process of moving to a new Mac
  • Updated “Calculator” to mention the restored Repeated Operations feature
  • Added topics that cover changes in more apps than the previous version of this book included: “Finder,” “Music,” “Podcasts,” “Reminders,” and “TV”
  • Significantly overhauled the “Mail” topic to cover features added in later updates to Sequoia, such as Mail Categories and Hidden Contact Photos

What Was New in Version 1.1

Version 1.1 of this book was a minor update that detailed some of the changes between the beta versions of Sequoia and the 15.0 release version. The major changes were:

  • Removed references to the beta versions of Sequoia that are no longer relevant
  • Mentioned a new PDF Apple published with details on all of Sequoia’s new features
  • Replaced a screenshot of Software Update; see "Learn About Upgrades via Software Update"
  • Provided a direct download link for Sequoia; see "Obtain the Installer"
  • Updated the description of Safari’s Highlights feature; see "View Page Highlights"
  • Removed a mention of Pinned Collections in Photos, which apparently were intended only for iOS 18 and iPadOS 18
  • Read Me First
    • Updates and More
    • What’s New in Version 1.2
    • What Was New in Version 1.1
  • Introduction
  • Sequoia Quick Start
  • Take In the Scenic View
    • Find Out What’s New in Sequoia
    • Catch Up with macOS Changes
  • Check Your Mac for Compatibility
    • Model Support
    • Free Disk Space
    • Solid-State Storage
  • Upgrade to Sequoia
    • Update Your Third-Party Software
    • Back Up Your Disk
    • Decide on an Installation Method
    • Learn About Upgrades via Software Update
    • Make Final Preparations
    • Upgrade Using Plan A: In‑Place Upgrade
    • Upgrade Using Plan B: Clean Install
    • Perform Post-Installation Tasks
    • Troubleshoot Upgrade Problems
    • How to Downgrade macOS
  • Tile Your Windows
    • Tile Windows by Dragging
    • Tile Windows with a Menu
    • Tile Windows with Keyboard Shortcuts
    • Adjust Tiling Settings
  • Use New iPhone Continuity Features
    • Mirror Your iPhone Screen on Your Mac
    • See iPhone Notifications on Your Mac
  • Improve Videoconferencing
    • Preview Shared Screen Content
    • Replace Your Background
    • Use Play Preview
  • Explore System Settings
    • Apple Account Settings
    • Wi-Fi Settings
    • Battery Settings
    • General Settings
    • Accessibility Settings
    • Apple Intelligence & Siri Settings
    • Desktop & Dock Settings
    • Screen Saver and Wallpaper Settings
    • Focus Settings
    • Lock Screen Settings
    • Privacy & Security Settings
    • Siri Settings
    • Trackpad Settings
  • Discover Apple Intelligence
    • Enable Apple Intelligence
    • Siri Changes
    • Writing Tools
    • Image Generation
    • Apple Intelligence in Photos
    • Notification Summaries
    • Other Apple Intelligence Features
  • Meet Safari 18
    • View Page Highlights
    • Peruse the Redesigned Reader
    • Reduce Webpage Distractions
    • Use the New Video Viewer
    • Link to a Specific Spot
  • Do More with Messages
    • Add Text Formatting
    • Use Animated Text Effects
    • Use an Emoji or Sticker Tapback
    • Use Emojis and Stickers More Easily
    • Use Smart Replies in Messages
    • Send a Message Later
  • Take Notes Further
    • Transcribe Live Audio
    • Use Math Notes
    • Add Collapsible Sections
    • Highlight Text
  • Try the Passwords App
    • A Quick Review: iCloud Keychain
    • Learn What’s New (and What’s Not)
    • Perform Basic Passwords Tasks
    • Share Passwords and Passkeys with a Group
    • Adjust Passwords Settings
  • Discover Other System Improvements
    • AirPods
    • Math Notes
    • Quick Start
  • Explore Other App Improvements
    • Calculator
    • Calendar
    • Finder
    • Freeform
    • Home
    • Mail
    • Maps
    • Music
    • Photos
    • Podcasts
    • Reminders
    • TV
    • Weather
  • About This Book
    • Ebook Extras
    • About the Author and Publisher
  • Also by Joe Kissell
  • Copyright and Fine Print

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