List supported Xcode versions on web page

[fulldecent]

The CocoaPods project supports various versions of Xcode. And this version support is rolled in at some point, possibly not identical to Apple's release schedule. Please identify exactly which versions of Xcode are supported at these locations:

• https://cocoapods.org
• https://github.com/CocoaPods/CocoaPods/blob/master/README.md

[amorde]

I agree this could be improved. We should also probably list which OS / Ruby versions are supported as well.

[fulldecent]

At present, the website states this which implies Xcode 10 is NOT supported:

I want to support Xcode 10 in my pod but I sure as hell don't have time to support a CocoaPods+Xcode combination that CocoaPods does not support.

[fulldecent]

At present, the website claims Xcode 9 and 10 are support. This implies Xcode 11 and 12 are not supported.

[orta]

Moving this to cocoapods.org - happy to take PRs fixing this

[fulldecent]

Thank you. I can do this if you can tell me on good authority which versions of Xcode are currently supported by CocoaPods.

[orta]

We aim to support the current production version, and go back one version also. We ship betas of CocoaPods for betas of Xcode's.

I don't think we've ever chosen to drop support for an older Xcode, the xcodeproj format is generally good at backwards compatibility.