Swift 6.3 Release Process

forums.swift.org

Swift 6.3 Release Process This post describes the release process, and estimated schedule for Swift 6.3. Snapshots of Swift 6.3 Downloadable snapshots of the Swift 6.3 release branch will be posted regularly as part of continuous integration testing. As support is available, snapshot downloads will be added for newly supported platforms. Once Swift 6.3 is released, the official final builds will also be posted in addition to the snapshots. Getting Changes into Swift 6.3 On November 12th, 2025 ...

Embedded Swift Improvements Coming in Swift 6.3

Swift.org Apple Inc Nov 17, 2025

Embedded Swift is a subset of Swift that’s designed for low resource usage, making it capable of running on constrained environments like microcontrollers. Using a special compilation mode, Embedded Swift produces significantly smaller binaries than regular Swift. While a subset of the full language, the vast majority of the Swift language works exactly the same in Embedded Swift. Additional information is described in the Embedded Swift vision document.

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