[cryptoz]

It wouldn't be HN if I didn't say that I think Windows 95 had solid blue title bars rather than the 98/NT gradient.

But yeah this is cool :)

[asveikau]

NT didn't have the gradients either. 2000 did.

[TimTheTinker]

Win98 did though.

[asveikau]

That's correct. 98 was the first release to have it, chronologically speaking. 2000 was the first NT based Windows to have it.

So 98/NT didn't make sense to me. NT4, the last release to use the name NT, had a very Win95-like appearance. I also remember NT 3.51 (and I guess there were other 3.x) that had a very Win3.1-like UI despite being 32 bit.

[cryptoz]

Yeah you got me. Fair enough.

Windows 2000 was amazing and just my favorite OS. Saying that as a linux user.

[coronadisaster]

Win2000 was the most perfect and least buggy Windows version of all time.

[asveikau]

It didn't seem buggy at the time but you wouldn't want it on the public internet with all its security bugs.

It would be nice if Microsoft just backported security improvements and other kernel type stuff without messing with UI.

[hunter2_]

1.x=1.x

2.x=2.x

3.x,NT3.x=3.x

95,NT4=4.0

98=4.1

ME=4.9

2000=5.0

XP=5.1

2003=5.2

Vista,2008=6.0

7,2008=6.1

8,2012=6.2

8.1=6.3

10,2016,2019=10

Makes perfect sense, right? Honestly I can deal with most of it, but couldn't they have realigned at 7?

https://www.gaijin.at/en/infos/windows-version-numbers

[asveikau]

Yeah, in early prerelease they had 7 report as 7.0.

But the story goes there was buggy code out there that said:

    if (major == 6)
    {
       // Do the thing that works on Vista
    }
    else
    {
       // Do the thing that only worked on XP and earlier
    }

And they wanted Win7 to hit the Vista-ready code. So they kept major at 6 for a long time. I guess they stopped caring for Win10.

[chungy]

Even more to the point, the kernel major version number represented an implicit ABI compatibility for drivers.

Windows 4.9 could load drivers for 4.0. 5.2 could load drivers for 5.0. 6.3 could load drivers for 6.0...

Windows 10... can still load 6.x drivers, but it bumped the internal version number to 10.0. It is worked around because without an explicit "I'm Windows 10-compatible!" manifest, the OS just lies and reports an internal version of 6.3, along with the ProductName string remaining "Windows 8.1"

[hunter2_]

Makes sense, but they also had pretty aggressive detection of when compatibility mode would be helpful, so solving for the bugs with that seems like it could've worked. But I always like a good major version skip, e.g. Winamp (no 4, because they combined 2 and 3 to make 5), PHP (no 6, because... reasons), and nobody so much as thinks about IPv5.