Got another development release for you.  The big change in this one is the ActionScript parser has been upgraded to support version 3.  It has support for regular expressions, XML literals, constants, and other goodies as described on the development page.  It even supports .mxml files in addition to .as files, so you can use Natural Docs in <mx:Script> blocks or even in plain XML comments.

The other features are pretty minor.  There's an -oft (--only-file-titles) command line option that lets you force the source file name to always be the page and menu title.  The search results will try to dynamically update rather than reloading the page every time.  The search box was tested and tweaked for IE 6 and 7, Firefox 1.5, Opera 9, 8.5, and 8, and Konqueror 3.5.  You can now use braces and parentheses in your file names without killing the menu.