Over the weekend, Microsoft released an updated version of Windows Vista; however the updated build was made available only to a limited division of testers in its Technology Adoption Partner (TAP) initiative. The provisional launch, numbered 5342, includes minor fixes and user interface twists, and is labeled an EDW build.
EDW, or External Developer Workstation, builds are made available more often than CTPs or Community Technology Previews and have not gone through the same amount of quality checks. Usually such releases are created to offer partners with changes they have requested during the beta process. The next public Vista release, the “Consumer CTP,” is expected in late April or May.