Apparently, #Apple wants to patent #swiftlang features like optional chaining, (which Swift did not invent(!)).
When they open-sourced it in 2015, I gave them a tremendous amount of credit and I like the language a lot, but it was visibly driven mainly by Chris Lattner and now that he's no longer there, they seem to be more and more willing to shit all over he and the team have done.
Just another sad example of why your work shouldn't be entrusted to a corporate entity if you truly value it.