> I didn't interpret anything in the article as saying that GitHub develops Git

"Microsoft [...] wanted to get these modifications accepted upstream and integrated into the standard Git client.

That plan appears to be going well. Yesterday, the company announced that GitHub was adopting its modifications and that the two would be working together to bring suitable clients to macOS and Linux."

This hints that Git upstream = GitHub. I mean, why mention GitHub at all if they aren't upstream? The rest of the article doesn't explain GitHub's role in this story either.