davidgro, 29 days ago (edited 29 days ago)

As far as Windows goes, 95 was actually version 4.00.950 for the first version.

98 was 4.1, 2000 was 5.0, XP 5.1, Vista 6.0, 7 was 6.1, 8 was 6.2, 8.1 = 6.3

Then they jumped to 10 in both the name and internal version.

Windows 11 is still 10.0.x though.