Yakov Manshin

What’s New in Swift 5.9

The most significant Swift update since 2017—which you may not even notice.

Swift 5.9 is out, and it ships two big things—macros and explicit lifetime management—and many small improvements. In this video, I’m highlighting my favorites.

In general, this release of Swift is among the most significant ones—probably the biggest since Swift 4 in 2017. But none of the changes will disrupt your routine, so it’s easy to not even notice them.