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9 Things to Do Before Installing macOS Catalina 10.15.3



This is what you need to do before installing macOS Catalina on your Mac. This will make the process go faster, smoother and if you do run into any problems, you will be better prepared to solve them. You should do this before installing the macOS 10.15.3 update, even though it is a small update than the initial Catalina upgrade.

This guide focuses on what you need to do before installing macOS Catalina or if you are already on it, the macOS Catalina 10.15.3 update.

macOS Catalina is a huge upgrade, akin to iOS 13, and you shouldn’t install this without taking some steps to prepare yourself or your Mac. This macOS 10.15.3 update does focus on bug fixes and a few small features, but it is still important to prep.

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If you are still on macOS Mojave, this update also adds tons of new features that allow you to use your Apple Watch and your iPad with your Mac in new ways. It adds Apple Arcade and Apple TV to your Mac as well as a plethora of new apps.

Read: How to Fix macOS Catalina Problems

Here’s your game plan of what you need to do before you install macOS Catalina on your Mac at home or at work. This will help you avoid issues and fix problems that you may run into. This is what you need to do before you install macOS 10.15.3;

  1. Learn About macOS Catalina
  2. Decide If You’re Upgrading or Doing a Clean macOS Install
  3. Backup Your Mac
  4. Make Sure You Know Your Passwords
  5. Research macOS Catalina Feedback
  6. Prepare Yourself for macOS Catalina Problems
  7. Check App Reviews, Compatibility and Install Updates
  8. Talk to IT Before Installing
  9. Learn About the macOS Catalina to Mojave Downgrade Options

Keep in mind that this will take a while to install. We’re in the process of calculating that time, but you can expect to spend several hours with the current slow downloads. Even if you skip some of these steps, make sure you back up your Mac before you install macOS Catalina.

Learn About macOS Catalina

Learn About macOS Catalina

The macOS Catalina update is full of features, and it's a very important step in expanding the macOS ecosystem to better use the iPad and the Apple Watch.

Here's a look at the most exciting new macOS Catalina features that are a part of this update. Here are the five most important things you need to know about the macOS 10.15.3 update

The macOS 10.15.3 update specifically addresses;

  • Optimizes gamma handling of low gray levels on Pro Display XDR for SDR workflows when using macOS
  • Improves multi-stream video editing performance for HEVC and H.264 encoded 4K video on the 16-inch MacBook Pro (2019)

Once you spend time learning about this update, you can proceed to the next steps. 

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