If Apple Configurator prompts you to update the app to communicate with a newly connected iOS device, it means the device is running an iOS version newer than what version 2.13.3 can recognize. In this case, updating the host Mac's operating system and Apple Configurator version is unavoidable.
Apple configurator for Big Sur ( 2.13.3 ishh ) : r/macsysadmin apple configurator 2.13.3 dmg
Here are some tips and tricks to help you get the most out of Apple Configurator 2.13.3: If Apple Configurator prompts you to update the