This last week, we got a couple of IHttpModules that add Basic and Digest authentication support to our xsp server. Most of the work was done by Sebastien Pouliot, our man on crypto-moon, based on previous code from Greg Reinacker. Thanks, guys!
We were missing browser detection until a few days ago. Our implementation is based on browscap.ini file by Gary J. Keith, who kindly allowed us to use it. Gary said that he may provide ASP.NET style capabilities information in the future, so we may switch to that some time soon.
Jackson is finishing trace support and <customErrors> support just landed in CVS.