lockedm
Yes, it’s a known issue and you can safely ignore this warning. In WordPress 6.9 that file is no longer part of the official checksum set, so WP-CLI’s core verify-checksums (used by cPFence) reports it as “file should not exist” and removes it. The WordPress upgrader didn’t delete the old file, so when cPFence ran the WP-CLI checksum check for 6.9, it saw:
Warning: File should not exist: wp-includes/SimplePie/src/Core.php
and quarantined it. The next version will address this.
