Microsoft Version Math – Part III

I was reading some more about Windows 7 and the version numbers over the weekend and I came across these great quotes made by Brian Nash

“We decided to ship the Windows 7 code as Windows 6.1 – which is what you will see in the actual version of the product in cmd.exe or computer properties,”

“We learned a lot about using 5.1 for XP and how that helped developers with version checking for API compatibility. We also had the lesson reinforced when we applied the version number in the Windows Vista code as Windows 6.0– that changing basic version numbers can cause application compatibility issues. So we decided to ship the Windows 7 code as Windows 6.1 – which is what you will see in the actual version of the product in cmd.exe or computer properties,”

I guess Windows 7 will actually be Windows 6.1, and the math gets even more interesting.

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