How To Update Macos High Sierra 10136 To 1015 <2024>

Summary

Compatibility and system requirements

  • Software compatibility:
  • Peripherals:

    • Preparation (critical)

  • Backup:
  • Inventory and compatibility:
  • Free up space:
  • Update firmware and apps:
  • Note settings and licenses:

    • The upgrade process (typical path)

    Common issues and fixes

    Post-upgrade checklist

    Pros of upgrading

    Cons and tradeoffs

    Recommendation

    Concise checklist

    If you want, I can:

    Upgrading from macOS High Sierra (10.13.6) to macOS Catalina (10.15) is a major leap that transitions your system to a 64-bit-only environment. Use this guide to ensure your hardware is compatible and your data is safe before you proceed. 1. Confirm Hardware Compatibility

    Before downloading, verify that your Mac model is officially supported by Apple for macOS Catalina: MacBook: Early 2015 or newer MacBook Air: Mid 2012 or newer MacBook Pro: Mid 2012 or newer Mac mini: Late 2012 or newer iMac: Late 2012 or newer iMac Pro: 2017 Mac Pro: Late 2013 or newer

    Note: You need at least 4GB of RAM and 12.5GB of available storage. 2. Essential Preparations macOS Catalina - Technical Specifications - Apple Support

    To update macOS High Sierra 10.13.6 to macOS 10.15 Catalina, you must first ensure your hardware is compatible and your data is safely backed up. Catalina is a major transition as it discontinues support for 32-bit applications. 1. Check Hardware Compatibility

    Your Mac must be one of the following models to officially support macOS Catalina: MacBook: Early 2015 or newer MacBook Air: Mid 2012 or newer MacBook Pro: Mid 2012 or newer Mac mini: Late 2012 or newer iMac: Late 2012 or newer iMac Pro: 2017 or newer Mac Pro: Late 2013 or newer 2. Prepare Your Mac

    Back Up Your Data: Use the built-in Time Machine utility to back up your files to an external drive.

    Check Storage: You need at least 12.5GB to 18.5GB of available storage to perform the upgrade.

    Verify Apps: Catalina only runs 64-bit apps. Use a tool like Go64 to identify which of your current apps will stop working after the update. 3. Download and Install macOS Catalina how to update macos high sierra 10136 to 1015

    Since you are on High Sierra, the update may not appear automatically in "Software Update." You should use the App Store method: Updating and Upgrading macOS High sierra - Apple Community

    Upgrading from macOS High Sierra 10.13.6 to macOS Catalina 10.15 is a direct process for supported hardware. You do not need to install macOS Mojave as an intermediate step unless your Mac model requires a firmware update typically included in Mojave. Critical Pre-Upgrade Requirements macOS - How to Upgrade - Apple (SI)

    macOS High Sierra 10.13.6 macOS Catalina 10.15 , you must first ensure your hardware is compatible. If your Mac is a supported model, you can download the installer directly from the Apple App Store 1. Check Compatibility

    Your Mac must be one of the following models or newer to officially run Catalina: Apple Support : Early 2015 MacBook Air : Mid 2012 MacBook Pro : Mid 2012 : Late 2012 : Late 2012 : Late 2013 2. Prepare for Installation Backup Your Data Time Machine to back up your entire system to an external drive. Check Storage : Ensure you have at least of available storage. Update Current Apps : Go to the to install any pending High Sierra security updates first. Apple Support 3. Download and Install Catalina

    Because High Sierra is an older OS, Catalina will not appear in the standard "Software Update" menu in System Preferences. wikidot wiki Open the App Store : Search for "macOS Catalina" or use the official App Store link Download the Installer . The file is roughly Run the Installer

    : Once the download completes, the "Install macOS Catalina" app will open automatically from your Applications folder. Follow On-Screen Steps to the license terms.

    Select your primary hard drive (e.g., "Macintosh HD") and click Enter your administrator password when prompted. Restart and Finalize

    : Your Mac will restart multiple times. Stay plugged into power throughout this process. Note for Unsupported Macs macOS Catalina - Technical Specifications - Apple Support

    Important Note: The version number you provided (10.13.6) is the final release of High Sierra. There is no version 10.13.136. This guide assumes you meant updating from macOS High Sierra 10.13.6 to macOS Catalina 10.15.x (the immediate successor to Mojave, as High Sierra cannot directly jump to newer OS versions like Ventura or Sonoma on most older hardware). Summary

    Upgrading across three major versions (10.13 → 10.15) carries risks. Follow these steps strictly.

    General Steps:

  • Download and Install Update: If an update is available, you'll see it listed here. Click Update Now or Upgrade Now to begin the process. Depending on your internet connection, this might take a while.

  • Follow On-Screen Instructions: The installer will guide you through the process. Your Mac might restart several times during the installation.

    • Apple no longer prominently features Catalina on the App Store because newer OS versions exist. Here’s how to find it.

    macOS Catalina supports the following Mac models (and removes support for some older models that worked with High Sierra):

    Note: If your Mac is older than these models, you cannot update to Catalina and must stay on High Sierra or install a lightweight Linux distribution.

    Catalina requires at least 20 GB of free space, but 30–40 GB is safer.

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