Where can I find a complete list of Windows and macOS versions in Major.Minor.Patch format?

For Windows, the Wikipedia page on Microsoft Windows versions is super helpful. It lays out the build numbers clearly. You can check it out here: [List of Microsoft Windows versions - Wikipedia](https://en.wikipedia.org/wiki/List_of_Microsoft_Windows_versions). Just a heads up, the way Windows and macOS are versioned might not strictly follow the traditional Major.Minor.Patch method anymore.

I usually use the same resource as the previous commenter for Windows, but for macOS, I rely on these two links: [MacOS Version List](https://en.wikipedia.org/wiki/MacOS) and [Apple Support](https://support.apple.com/en-us/109033). They have the version history listed out clearly.

If you're after something more detailed in a human-readable format, check out [BetaWiki](https://betawiki.net/wiki/Microsoft_Windows) for Windows. You might need to dive into specific versions to see all the builds. For macOS, they've got a page too: [BetaWiki macOS](https://betawiki.net/wiki/MacOS). For a more technical take, the [GitHub page](https://github.com/AshleyHow/WindowsOSBuild) scrapes Microsoft web pages for build info, which might be what you need!

For Windows, remember that the underlying number for Windows 11 is actually 10.0.22000+; the '11' is just branding. If you want to keep up with how versions relate, take a look at Microsoft's [Windows release health dashboard](https://learn.microsoft.com/en-us/windows/release-health/). As for macOS, you can refer to the Apple Developer documentation for all the release notes. And if you need to programmatically display this information, tools like 'wiver' for Windows or 'system_profiler' for macOS can give you detailed output.