The first preview release of IronPython 2.7.3 is now available. This release includes new modules, improvements to, and several other enhancements (and more are coming before 2.7.3 is released).

Unfortunately, there is an issue with having both IronPython 2.7.3 (and 2.7.2, actually) and IronRuby 1.1.3 installed at the same time, so if you want to use IronPython you must uninstall IronRuby. This will be resolved before the final IronPython 2.7.3 release.