Swift 6.3 Released

Swift.orgPublished 2026-10-09 14:58 UTC

Swift is designed to be the language you reach for at every layer of the software stack. Whether you’re building embedded firmware, internet-scale services, or full-featured mobile apps, Swift delivers strong safety guarantees, performance control when you need it, and expressive language features and APIs. Swift 6.3 makes these benefits more accessible across the stack. This release expands Swift…

— Swift.org

Read at Swift.org

Release

Version: 6.3
Released: 2026-03-24
Release notes: Swift.org

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