29 Oct
2008
29 Oct
'08
9:54 a.m.
Ahh with a little more digging it seems that the sourceforge project is GNU Netcat which is as you say GPL and currently at 0.7.1.
The netcat package in ubuntu is the "classic" netcat which is free as in the public domain...this is the original and is as old as the moon.
Then the BSD Netcat was a rewrite which is under the BSD licence, this is the one that seems to get the most frequent attention. Although you could also argue that the others are just finished :)