BetaWiki:Featured article/2021-12

The desktop of Windows Longhorn build 4042 (Lab06_n)

Windows Longhorn build 4042 (Lab06_n) is one of the first Milestone 7 builds of Windows Longhorn, which was first described by Grabberslasher in his UX.Unleaked blog on 7 July 2008 and later shared on BetaArchive on 25 April 2011.

This build marks the debut of the new Slate theme, first seen publicly in the various 4050 builds during the PDC 2003 conference, and the official PDC build, build 4051. To coincide with the new theme, a significant number of major facelifts were made towards the user interface.