Released in 2019, macOS Catalina (version 10.15) introduced significant features that reshaped the Mac experience, such as the separation of iTunes into dedicated apps and the debut of Sidecar, which allows using an iPad as a secondary display. The final update, , remains highly significant as it delivered crucial security patches and resolved several bugs, including a notable fix for an issue where macOS would not automatically connect to Wi-Fi networks.

If you want to prepare your machine for this setup, let me know: What is your current Mac? What operating system version are you currently running?

Here's how to do it on a Mac:

Understanding macOS Catalina 10.15.7 macOS Catalina 10.15.7 is the final major update for the 10.15 release cycle. It delivers critical security patches and system enhancements for vintage Mac hardware. This version resolves a known bug where macOS would not automatically connect to Wi-Fi networks. It also fixes a graphical rendering flaw impacting iMacs equipped with the Radeon Pro 5700 XT graphics card.