Nmap 3.50 has been released
Click 'read more' for the list of some of the new features... There has been a significant update to the remote OS detection fingerprints so that it can now accurately identify over 1000 operating systems.
MS Windows support has improved substantially. Newer features such as version detection are supported, and the Windows port is also faster and more stable.
Mac OS X is now fully supported
Nmap output is more concise and prettier, thanks to a new NmapOutputTable class that reduces extraneous whitespace. This makes it easier to read, and also leaves more room for version info and possibly future enhancements.
And much much more....