Submitters: Please don't rewrite titles to say what you think is important about an article. Cherry-picking a single detail is a form of editorializing, which HN doesn't allow in story titles. The guidelines ask you to change titles only when they're misleading or linkbait, which wasn't the case here.
If you think one detail is most important, you're welcome to comment on that in the thread. Then your opinion is on the same level as other users'.
(Submitted title was 'Swift 3 will be portable / be able to run on more platforms'.)
Enforcement of this particular policy is one of the things I dislike most about HN. The current title is awful. It gives no information that the URL itself does not and doesn't explain why I'd care about the contents now given I've visited the repo in the past. I'm not opposed to the removal of editorializing but it should get replaced with something neutral that still captures why the URL was submitted, e.g. "Swift 3 Roadmap Update".
If you think one detail is most important, you're welcome to comment on that in the thread. Then your opinion is on the same level as other users'.
(Submitted title was 'Swift 3 will be portable / be able to run on more platforms'.)