Info source: GitHub
| 7 | 8.1 | 14393 | 15063 | 16299 | 17134 | 17763 | 18362 | 18363 | 19041 | 19042 | 19043 | 19044 | 19045 | 22000 | 22621 | 22631 | 26100 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.x | SP1 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 2.0 | SP1 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 2.1 | ESU | Yes | Yes | * | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 2.2 | SP1 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 3.0 | SP1 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 3.1 | ESU | Yes | Yes | * | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| 5 | ESU | Yes | Yes | * | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| 6 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||||||||||
| 7 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||||||||||
| 8 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||||||||||
| 9 | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Information from the above table is completely copied from the GitHub link; in other words, it's about claimed compatibility, not actual compatibility. I have not yet tested actual compatibility.
Some projects, such as MesenCE, use .NET Core 6 for a separate "Windows 7 and 8" build, implying that .NET Core 6 is the last supported version on Windows 7 and 8.
Windows 8.0, 1507 (10240), 1511 (10586) have never been supported.
Support for .NET Core 2.1, 3.1 and 5 on 1703 (15063) is pulled on 2019/10/08 because that's when updates are no longer provided for that OS.
Prior to version 6, compatibility with each sub-version of Windows 10 and 11 isn't separately indicated; only a minimum version (1607 aka 14393) is given. It is assumed that support for each sub-version follows Microsoft's OS lifecycle policy.