Pf Configuration Incompatible With Pf Program Version Jun 2026

: If you recently upgraded your OS (e.g., macOS Sequoia or Sonoma), some old keywords may be deprecated. Review your /etc/pf.conf Outdated "scrub" rules. Changes in interface naming (e.g., Unsupported optimization settings. : Ensure you are using the system-provided

# FreeBSD kldstat | grep pf

This message typically appears when running pfctl (the Packet Filter control program) to load or validate a firewall ruleset. It signals a critical mismatch between the userland utilities (the compiler and control tools) and the in-kernel Packet Filter module. In simpler terms, the tool you are using to talk to the firewall speaks a different language than the firewall kernel module listening for instructions. pf configuration incompatible with pf program version