From Longhorn to Vista
Vista spent more than five years in development — the longest gap between Windows client releases at the time.
Longhorn begins
Planned as a modest step between Windows XP and a larger future release, “Longhorn” quickly grew in scope with new storage, graphics and communication foundations.
The reset
With the project struggling under its own ambitions, development was restarted on the Windows Server 2003 codebase. Several headline technologies, including the WinFS storage layer, were set aside.
A name: Windows Vista
Longhorn was officially named Windows Vista, and the first public beta followed soon after.
Released to manufacturing
Vista was finalized on November 8, 2006 and reached business customers through volume licensing at the end of that month.
Worldwide consumer launch
Vista arrived on store shelves and new PCs around the world.
Service Packs 1 & 2
SP1 (early 2008) and SP2 (2009) brought major fixes for performance, file copying, driver support and reliability — the Vista many people never got to see.
Succeeded by Windows 7
Windows 7 built directly on Vista's foundations, refining rather than replacing them.
End of support
Extended support ended, with users encouraged to move to a newer version of Windows.