In my first video for What’s New in macOS Catalina, I look at how you can tell which apps are 32-bit apps when you are using macOS Catalina. What the new video when I have a similar video for when you are using macOS Mojave? Because the method I use in the lesson no longer works if you are using macOS Catalina. So I thought the first video should be a recap showing how you can see which apps you have are 32-bit. Once you recognize which apps they are, you can then throw them away, as again, they will no longer work on your Mac since you are using macOS Catalina.