Hello,
On Sun, 17 Nov 2019 at 00:54, Bernard Rosset via Dng <dng@???> wrote:

> nftables keeps backwards-compatible tools allowing to load your saved
> rulesets from iptables.

nftables DOES NOT keep backward compatibility.
It doesn't for ebtables at least so I consider it doesn't for
iptables/arptables as well.
When I realized that, I removed nftables. I consider nftables harmful
for upgrades.

--
Regards,
Yevgeny