WiX v3.0.3725.0 was released on Friday, 25-Jan-08. You can download it from http://wix.sourceforge.net/releases/3.0.3725.0/.
- The XmlConfig element in WixUtilExtension now supports a Node attribute value of document to rewrite the whole XML document.
- The new switch -swall for candle, light, and lit suppresses all warnings, for when you’re feeling reckless.
- WixUI now validates that the chosen installation directory is valid, to detect as early as possible what would otherwise be a fatal error.
- Code page values can now be specified by number or “Web name.”
- New core WiX elements include SetDirectory and SetProperty, which offer simplified authoring for type 35 and type 51 custom actions, respectively.