> At the start of 2007, the latest Windows version was Windows 5, one more than Windows 4
Windows 2000 (NT 5.0) was released in 1999. Vista was NT 6, and released in 2006.
Windows 2000 (NT 5.0) was released in 1999. Vista was NT 6, and released in 2006.
It wouldn’t make a huge difference to me if 6 was released either 6 months earlier or 6 months later. In 2007, NT4 was only 1 major version behind for most people; adoption takes time. The broad timing of major versions being 4-5 years apart didn’t change until Windows 11, and we don’t know if that’s an outlier yet, but we do know that Microsoft has been changing the Windows release strategy, with more frequent updates. https://endoflife.date/windows