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    What's new in the updates for macOS Sequoia

    macOS Sequoia updates improve the stability, performance, or compatibility of your Mac and are recommended for all macOS Sequoia users....

    https://support.apple.com/en-hk/120283

    What's new for enterprise in macOS Sequoia

    Learn about the enterprise content that Apple has released for  macOS Sequoia .

    https://support.apple.com/en-hk/121011

    About the security content of macOS Sequoia 15.3.1

    This document describes the security content of macOS Sequoia 15.3.1.

    https://support.apple.com/en-hk/122900

    About the security content of macOS Sequoia 15.5

    This document describes the security content of macOS Sequoia 15.5.

    https://support.apple.com/en-hk/122716

    About the security content of macOS Sequoia 15.4.1

    This document describes the security content of macOS Sequoia 15.4.1.

    https://support.apple.com/en-hk/122400

    About the security content of macOS Sequoia 15.4

    This document describes the security content of macOS Sequoia 15.4.

    https://support.apple.com/en-hk/122373

    About the security content of macOS Sequoia 15.3.2

    This document describes the security content of macOS Sequoia 15.3.2.

    https://support.apple.com/en-hk/122283

    About the security content of macOS Sequoia 15.3

    This document describes the security content of macOS Sequoia 15.3.

    https://support.apple.com/en-hk/122068

    How to upgrade to macOS Sequoia

    Follow these steps to upgrade to macOS Sequoia 15.

    https://support.apple.com/en-hk/120280

    About the security content of macOS Sequoia 15.2

    This document describes the security content of macOS Sequoia 15.2.

    https://support.apple.com/en-hk/121839

    About the security content of macOS Sequoia 15

    This document describes the security content of macOS Sequoia 15.

    https://support.apple.com/en-hk/121238

    macOS Sequoia is compatible with these computers

    You can install macOS Sequoia on any of these Mac models. 

    https://support.apple.com/en-hk/120282

    About the security content of macOS Sequoia 15.1

    This document describes the security content of macOS Sequoia 15.1.

    https://support.apple.com/en-hk/121564

    Digital camera RAW formats supported by iOS 18, iPadOS 18, macOS Sequoia, and visionOS 2

    This list is current as of May 2025 and reflects compatibility with the latest versions of iOS 18, iPadOS 18, macOS Sequoia 15, and visionOS 2. These operating systems include enhanced support for processing digital camera RAW formats, providing better detail, improved noise reduction, and greater image-editing flexibility when using apps that support RAW. They also include basic support for...

    https://support.apple.com/en-hk/120534

    About the security content of macOS Sequoia 15.1.1

    This document describes the security content of macOS Sequoia 15.1.1.

    https://support.apple.com/en-hk/121753

    Fonts included with macOS Sequoia

    macOS Sequoia comes with these built-in and downloadable typefaces.

    https://support.apple.com/en-hk/120414

    macOS Sequoia Overview

    macOS Sequoia brings effortless window tiling, web browsing with fewer distractions, new iPhone Mirroring, and support for Apple Intelligence....

    https://www.apple.com/macos/macos-sequoia/

    About the security content of macOS Ventura 13.7.4

    This document describes the security content of macOS Ventura 13.7.4.

    https://support.apple.com/en-hk/122902

    About the security content of macOS Sonoma 14.7.4

    This document describes the security content of macOS Sonoma 14.7.4.

    https://support.apple.com/en-hk/122901

    I am trying to update from macOS 12 Sierra to macOS 13 High Sierra, but on the Apple App Store I am getting this message: This copy of the install macOS High Sierra.app application is damaged, and can't be used to install macOS. What can I do?

    I am trying to update from macOS 12 Sierra to macOS 13 High Sierra, but on the Apple App Store I am getting this message: This copy of the install macOS High Sierra.app application is damaged, and can't be used to install macOS . What can I do? Any suggestions or advice welcome! Thanks!...

    https://discussions.apple.com/thread/253940234

    About the security content of macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002

    This document describes the security content of macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002....

    https://support.apple.com/en-hk/103058

    About the security content of macOS Ventura 13.7.6

    This document describes the security content of macOS Ventura 13.7.6.

    https://support.apple.com/en-hk/122718

    About the security content of macOS Sonoma 14.7.6

    This document describes the security content of macOS Sonoma 14.7.6.

    https://support.apple.com/en-hk/122717

    Prepare to update macOS Server in macOS Monterey

    To use macOS Server in macOS Monterey, a newer version of macOS Server is required.

    https://support.apple.com/en-hk/101904

    About Xsan in macOS Server 5.11.1 and macOS Server 5.12

    With the Xsan command-line management tools built into macOS Big Sur and later, you no longer need macOS Server to create and administer Xsan storage networks. ...

    https://support.apple.com/en-hk/101843

    About the security content of macOS Ventura 13.7.5

    This document describes the security content of macOS Ventura 13.7.5.

    https://support.apple.com/en-hk/122375

    About the security content of macOS Sonoma 14.7.5

    This document describes the security content of macOS Sonoma 14.7.5.

    https://support.apple.com/en-hk/122374

    About the security content of macOS Ventura 13.7.3

    This document describes the security content of macOS Ventura 13.7.3.

    https://support.apple.com/en-hk/122070

    About the security content of macOS Sonoma 14.7.3

    This document describes the security content of macOS Sonoma 14.7.3.

    https://support.apple.com/en-hk/122069

    My question is if my MacBook Air (11-inch, Mid 2012) can be updated to a newer macOS such as macOS Sierra 10.12? I need at least this version of macOS because my nordVPN APP won'y download with an older version. Thank you for your help!

    My question is if my MacBook Air (11-inch, Mid 2012) can be updated to a newer macOS such as macOS Sierra 10.12? At the moment I have OS X El Capitan 10.11 (not compatible with nordVPN app) I need at least this version of macOS Sierra 10.12 because my nordVPN APP won'y download with an older version. Thank you for your help!...

    https://discussions.apple.com/thread/253938884

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