The Cortex XDR agent for Mac has the following requirements:
512MB minimum; 2GB recommended
Hard disk space
5GB minimum; 20GB recommended
Operating system versions
Palo Alto Networks supports Cortex XDR agent on many operating systems. To determine the minimum Cortex XDR agent release for a specific operating system, refer to Where can I install the Cortex XDR Agent in the Palo Alto Networks Compatability Matrix.
You can install the Cortex XDR agent for Mac only on endpoints running macOS.