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Development of Windows Vista
open-in-new
<p>The development of Windows Vista (codenamed Longhorn) began in May 2001, prior to the completion of <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a>'s <a href="/facts/Windows_XP/IozrkAYS">Windows XP</a> operating system, and continued until November 8, 2006, when it was <a href="/facts/Software_release_life_cycle/z4Q4RElA">released to manufacturing</a>. <a href="/facts/Windows_Vista/IASEUCTB">Windows Vista</a> was then released generally to retail on January 30, 2007. </p>