The root of the problem is a gradual shift in Apple's and WhatsApp's technology requirements. The latest versions of the official WhatsApp Desktop app (versions around 2.23.24.80 and newer) are designed to run on . Consequently, when users on Catalina try to launch the newer app versions, they are met with an error message indicating that their operating system is no longer supported. Older versions of the desktop app may auto-update to a version that rejects macOS 10.15.7, effectively breaking compatibility.

If your Mac continuously loses connection, check your phone first. WhatsApp Web relies on your phone’s active internet connection to sync messages in real-time. Ensure your phone is not in an aggressive battery-saving mode that terminates background Wi-Fi or data connections. 2. Notifications Not Appearing If you miss incoming message alerts: