That's nice. But until then, having to re-learn idiomatic Swift every major version, and having to comb through all of your source code to ensure it's still doi

That's nice. But until then, having to re-learn idiomatic Swift every major version, and having to comb through all of your source code to ensure it's still doing what you expect in the new version (automatic migration or not) is a lot of extra effort that you simply don't need to put in with Objective-C. And another nice bonus is that you get to shave off about 10mb of swift runtime from your .ipa.