Hello,

usage.md recommends /var/db/dhcp_leases to get the IP address of a given virtual machine.
But it seems like macOS Sequoia has changed the format of that file and haven't been able to find much about it nor to easily match DHCP leases with VMs.

{
        name=nixos
        ip_address=192.168.64.30
        hw_address=ff,f1:f5:dd:7f:0:2:0:0:ab:11:b5:40:7c:3:e2:a9:8c:b3
        identifier=ff,f1:f5:dd:7f:0:2:0:0:ab:11:b5:40:7c:3:e2:a9:8c:b3
        lease=0x6782bfd4
}
{
        name=nixos
        ip_address=192.168.64.29
        hw_address=1,f6:25:e2:48:58:1e
        identifier=1,f6:25:e2:48:58:1e
        lease=0x6782bf9a
}

The second entry is an older lease, probably from before I upgraded? It contains the mac address of my machine as expected. The first entry is a current lease, without a mac address. At least not a plain one, I haven't been able to find documentation about the new format.

canonical/multipass#3661 looks like it could be related.
I wonder if might be a side-effect of https://macadmin.fraserhess.com/2024/09/16/handling-mac-address-randomization-in-macos-15/.