Swift

Languages & RuntimesApache-2.0

A powerful language for building apps and system software.

Latest 6.3.3-RELEASE · by AppleWritten in SwiftWebsiteswiftlang/swiftRSS

Release activity

Release activity — 10 releases across 10 days since Sep 8, 2025. Each cell is one day; darker means more releases that day. Nothing is recorded before Sep 8, 2025. Older weeks are hidden at this screen width.
JunJulAugSep
SundayNo releases on May 24, 2026No releases on May 31, 2026No releases on Jun 7, 2026No releases on Jun 14, 2026No releases on Jun 21, 2026No releases on Jun 28, 2026No releases on Jul 5, 2026No releases on Jul 12, 2026No releases on Jul 19, 2026No releases on Jul 26, 2026No releases on Aug 2, 2026No releases on Aug 9, 2026No releases on Aug 16, 2026No releases on Aug 23, 2026No releases on Aug 30, 2026No releases on Sep 6, 2026
MondayNo releases on May 25, 2026No releases on Jun 1, 2026No releases on Jun 8, 2026No releases on Jun 15, 2026No releases on Jun 22, 2026No releases on Jun 29, 2026No releases on Jul 6, 2026No releases on Jul 13, 2026No releases on Jul 20, 2026No releases on Jul 27, 2026No releases on Aug 3, 2026No releases on Aug 10, 2026No releases on Aug 17, 2026No releases on Aug 24, 2026No releases on Aug 31, 2026No releases on Sep 7, 2026
TuesdayNo releases on May 26, 2026No releases on Jun 2, 2026No releases on Jun 9, 2026No releases on Jun 16, 2026No releases on Jun 23, 20261 release on Jun 30, 2026No releases on Jul 7, 2026No releases on Jul 14, 2026No releases on Jul 21, 2026No releases on Jul 28, 2026No releases on Aug 4, 2026No releases on Aug 11, 2026No releases on Aug 18, 2026No releases on Aug 25, 2026No releases on Sep 1, 2026No releases on Sep 8, 2026
WednesdayNo releases on May 27, 2026No releases on Jun 3, 2026No releases on Jun 10, 2026No releases on Jun 17, 2026No releases on Jun 24, 2026No releases on Jul 1, 2026No releases on Jul 8, 2026No releases on Jul 15, 2026No releases on Jul 22, 2026No releases on Jul 29, 2026No releases on Aug 5, 2026No releases on Aug 12, 2026No releases on Aug 19, 2026No releases on Aug 26, 2026No releases on Sep 2, 2026
ThursdayNo releases on May 28, 20261 release on Jun 4, 2026No releases on Jun 11, 2026No releases on Jun 18, 2026No releases on Jun 25, 2026No releases on Jul 2, 2026No releases on Jul 9, 2026No releases on Jul 16, 2026No releases on Jul 23, 2026No releases on Jul 30, 2026No releases on Aug 6, 2026No releases on Aug 13, 2026No releases on Aug 20, 2026No releases on Aug 27, 2026No releases on Sep 3, 2026
FridayNo releases on May 29, 2026No releases on Jun 5, 2026No releases on Jun 12, 2026No releases on Jun 19, 2026No releases on Jun 26, 2026No releases on Jul 3, 2026No releases on Jul 10, 2026No releases on Jul 17, 2026No releases on Jul 24, 2026No releases on Jul 31, 2026No releases on Aug 7, 2026No releases on Aug 14, 2026No releases on Aug 21, 2026No releases on Aug 28, 2026No releases on Sep 4, 2026
SaturdayNo releases on May 30, 2026No releases on Jun 6, 2026No releases on Jun 13, 2026No releases on Jun 20, 2026No releases on Jun 27, 2026No releases on Jul 4, 2026No releases on Jul 11, 2026No releases on Jul 18, 2026No releases on Jul 25, 2026No releases on Aug 1, 2026No releases on Aug 8, 2026No releases on Aug 15, 2026No releases on Aug 22, 2026No releases on Aug 29, 2026No releases on Sep 5, 2026

10 releases since Sep 8, 2025

Changelog

swift-6.3.3-RELEASELatestFrom commit messages

Swift 6.3.3 Release

Changed 3
  • Look-through explicit capture lists when determining closure isolation in concurrency.
  • Set correct isolation on thunks that reabstract into nonisolated(nonsending).
  • Transfer nonisolated(nonsending) from original to specialized and optimized SILFunction variants.
Fixed 4
  • KeyPath with 16-byte-aligned subscript traps on 32-bit targets.
  • Module names on OpenBSD for amd64/x86_64.
  • Demangling for extended existential.
  • swift repl crashing on async code.
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How swift-6.3.3-RELEASE went
swift-6.3.2-RELEASEFrom commit messages

Swift 6.3.2 Release

Added 3
  • SIL support for alloc_stack [non_nested] and related stack allocation optimizations.
  • Properly paired builtins for pushing and popping task-local values with stack discipline modeling.
  • Support for differentiable_function with borrowed scopes in SIL combine.
Changed 1
  • Defer emission to inline defers that call a single builtin as a special case.
Fixed 9
  • Result builder synthesized inits in non-generic structs.
  • Stack nesting utility and async let implementation to correctly handle multiple allocations on the stack.
  • SIL verifier to properly handle begin_apply token/allocation and use correct scope results.
  • Ptrauth discriminator cache incorrectly shared between function-type and yield-type.
  • ConstantCapturePropagation ODR violation with generic closures.
  • C++ interop issues including modularization for cmath with libstdc++, CF_OPTIONS macro import, and AppKit function key property detection.
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How swift-6.3.2-RELEASE went
swift-6.2.4-RELEASEFrom commit messages

Swift 6.2.4 Release

Changed 2
  • Concurrency now allows transferring nonisolated(nonsending) to isolation boundary closures.
  • Windows build upgraded to Python 3.10.1 and now includes Embeddable Python in build.ps1.
Fixed 3
  • IRGen use of proper linkage for async function pointers to partial apply forwarders.
  • SILGen handling of break and continue inside 'for ... in ... repeat' loops.
  • _SwiftNewtypeWrapper when not using the Objective-C runtime.
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How swift-6.2.4-RELEASE went
swift-6.2.2-RELEASEFrom commit messages

Swift 6.2.2 Release

Added 1
  • Add threading fatal error handler to Observation.
Changed 1
  • Change version string to 'swift-6.2.2-RELEASE' and bump the Swift version to 6.2.2.
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How swift-6.2.2-RELEASE went
swift-6.2.1-RELEASEFrom commit messages

Swift 6.2.1 Release

Added 3
  • Support for 16 KB page sizes on Android.
  • Swift AST APIs including Type.interfaceTypeOfArchetype and related APIs.
  • Public --cross-compile-build-swift-tools flag for build configuration.
Changed 1
  • TypeCheckEffects AbstractFunction parameter types are now mapped into context.
Fixed 6
  • Optimizer handling of dependent existential archetypes in alloc_stack and apply simplification.
  • SILCombine convert_function to apply peephole for generic function types.
  • IRGen computation of spare bits for fixed arrays.
  • Concurrency and distributed thunks to be @concurrent and properly handled in distributed scenarios.
  • Memory lifetime verifier and AllocBoxToStack to permit leaks in dead-ends.
  • Linux backtracing to avoid using process_vm_readv().
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How swift-6.2.1-RELEASE went

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