Compare Windows Versions

Compare different Windows versions to understand their differences and compatibility.

Version Comparison

Please enter the first Windows version.
Can be version name (e.g., 21H2) or build number (e.g., 19044)
Please enter the second Windows version.
Can be version name (e.g., 21H2) or build number (e.g., 19044)

Windows 10 Versions

Loading Windows 10 versions...

Windows 11 Versions

Loading Windows 11 versions...

Common Windows Build Numbers

Edition Version Marketing Name Build Number Release Date
Windows 11 24H2 Windows 11 2024 Update 26100.xxx October 2024 (Expected)
Windows 11 23H2 Windows 11 2023 Update 22631.xxx October 31, 2023
Windows 11 22H2 Windows 11 2022 Update 22621.xxx September 20, 2022
Windows 11 21H2 Original Release 22000.xxx October 5, 2021
Windows 10 22H2 October 2022 Update 19045.xxx October 18, 2022
Windows 10 21H2 November 2021 Update 19044.xxx November 16, 2021
Windows 10 21H1 May 2021 Update 19043.xxx May 18, 2021
Windows 10 20H2 October 2020 Update 19042.xxx October 20, 2020
Windows 10 2004 May 2020 Update 19041.xxx May 27, 2020
Windows 10 1909 November 2019 Update 18363.xxx November 12, 2019