Not only that, but each Windows also had sub-variations of these versions, which were introduced with major bi-annual feature updates. Microsoft has now shifted to annual feature releases. For example, Windows 10 has versions 21H2, 21H1, and many others, while Windows 11 has 21H2 and 22H2. This post lists the complete timeline and highlights the significant details of each Windows version released from the beginning of time.
Windows Timeline
The image below is an illustration of the different Windows versions and their release point in time.
Windows History
The table below briefly describes the important aspects of each of the Windows operating systems along with some other useful information. The table above depicts all the significant changes as well as the release details of individual Windows versions since Microsoft first launched the operating system back in 1985. Let us now categorize these operating systems so that their hierarchy is easier to understand. Note: The “X” in the table denotes an empty integer as part of the complete Windows version.
Closing Words
Microsoft has made functional, cosmetic, and infrastructural changes to the Windows operating system since it was first released. They have been working on making it the top OS for consumers, continuously enhancing the user experience through feedback and testing through the Insider program. That said, we hope that the images and tables above reduce the complication of understanding the Windows hierarchy.
