What's new in Swift: March 2026 Edition

Welcome to “What’s new in Swift,” a curated digest of releases, videos, and discussions in the Swift project and community. Swift 6.3 has been released , expanding Swift into new domains and improving developer ergonomics. A highlight of its release is work to improve cross-platform build tooling. Owen Voorhees shares an update on that effort: Hi! I’m Owen, a lead engineer on the Core Build team at Apple. Last year we shared our goal to bring Swift Build to Swift Package Manager, in an effort to deduplicate