A primary focus of this release is the Nmap Scripting Engine, which has allowed Nmap to expand up the protocol stack and take network discovery to the next level. Nmap can now query all sorts of
application protocols, including web servers, databases, DNS servers, FTP, and now even Gopher servers! Remember those? These capabilities are in self-contained libraries and scripts to avoid bloating Nmap’s core engine.
This release isn’t just about NSE. The Nping packet probing and analysis tool (http://nmap.org/nping/) is also added in 5.35DC1. Version 5.50 improves Nping further with an innovative new echo mode (http://bit.ly/nping-echo).
Also added 636 OS fingerprints and 1,037 version detection signatures to Nmap since 5.21, bringing the totals to 2,982 and 7,319, respectively. No other tool comes close.