[SquareWheel]

I'm surprised to see Apple using Github; particularly now that Microsoft owns it. It is where the developers are though. And it certainly beats a hidden download on opensource.apple.com.

[dwaite]

The opensource.apple.com site is really more for software that they snapshot and release (open source, not open process). They've had other projects for a long time developed in the open, and used to run https://www.macosforge.org to host them.

Some of those were acquired (either as a core developer in the case of CUPS, a codebase in the case of WebKit) but I'm not sure of other examples of open sourcing an acquired technology like this.

[lloeki]

This is not exactly a new thing: https://github.com/apple/swift

There's also: https://github.com/apple/foundationdb

[zepto]

I’d say Microsoft owning it makes it more attractive rather than less.

Less risk of it being acquired by some unknown company in the future or collapsing through mismanagement.

[neurobashing]

I'd go one step further and say that to Apple, Microsoft is "the devil you know". Apple uses Azure for some of its services, for example.