This release fixes a bug with the iptables version where the rule for the loopback interface was being created when network interfaces were specified, rather than the other way around.
In addition (for both the nftables and the iptables version), now when network interfaces are specified, 2 extra accept rules are created for traffic arriving via the selected interfaces: one which accepts all link-local connections (from fe80::/8), and another one which accepts DHCPv6 advertisements from upstream (udp port 546). This should solve some possible issues with communication between the device and the upstream router.
Full Changelog: v0.4.0.1...v0.4.1