After way too much time there is now a new KadNode release.
Some bugs were fixed that made the previous/first release nearly unusable.
This release is better.
The biggest change is the support for UPNP/NAT-PMP (not in OpenWrt package build).
Let's say KadNode now runs in a private network and is instructed to announce a specific value identifier on port 80 (which could be a web server). Then KadNode will try to instruct the router to add a port forwarding from the external port 80 to the internal port 80 (if the router supports this).
A user on a different PC and KadNode installed can now resolve the public IP and
also reach the web server using the port forwarding.