Hi Everyone.  I'm delighted to report the release of Nmap 4.75, which has almost 100 significant improvements since 4.68.  Some which I'm most excited about are:

o While Nmap stands for "Network Mapper", it hasn't been able to
  actually draw you a map of the network--until now!  Visit
  http://nmap.org/book/zenmap-topology.html for details and pretty
  pictures of Zenmap's new Scan Topology system.

o I spent much of this summer scanning tens of millions of IPs on the
  Internet (plus collecting data contributed by some enterprises) to
  determine the most commonly open ports.  Nmap now uses that
  empirical data to scan more effectively.

And there is much more, from hundreds of new OS detection fingerprints to many new Nmap Scripting Engine scripts and libraries.  I had no idea how many people still used Windows 2000 until 4.68 came out broken on that platform and I was flooded with email!  That is fixed now.  And its just one of many bug fixes and performance improvements in this release.  Remember that we had 7 Google SoC students working full-time this summer, and this release includes some of their best work.

You can obtain Nmap 4.75 from the normal location:

http://nmap.org/download.html

Please give it a try! And if you encounter any problems, report them to nmap-dev as described at http://nmap.org/book/man-bugs.html

Here is the detailed list of important 4.75 changes from
http://nmap.org/changelog.html