A few users reported firewall problems after update: http://forum.proxmox.com/threads/21112-From-FWbuilder-to-ProxMox-firewall-S-NAT-D-NAT-IPv6-Public-IPs?p=109034#post109034 the fix is here: https://git.proxmox.com/?p=pve-firew...10b7dcd1b65204 would be great to have some testers...