Pull Requests swiftlang/swift

[flow-isolation] Gate global-actor flow-isolation delegation behind FlowIsolationGlobalActor feature

#89560 by gottesmm was merged 2026-05-30 02:08

Revert "[DebugInfo] Use debug blocks in PhiExpansion rather than fragments"

#89550 by Snowy1803 was merged 2026-05-29 19:25

Revert "Wasm: fix `async` typed throws arguments mismatch trap"

#89541 by MaxDesiatov was merged 2026-05-29 20:01

test: Fix flaky test

#89535 by AnthonyLatsis was merged 2026-05-29 17:29

[PrintAsClang] Ensure "unavailable" comments are printed in a stable order c++ interop

#89530 by j-hui was merged 2026-05-29 16:31

Revert "[Concurrency] Async{Throwing}Stream state machine reimplementation"

#89528 by ktoso was merged 2026-05-29 00:47

[Concurrency] Guard noncopyable continuation builtin uses

#89524 by ktoso was merged 2026-05-29 18:26

[region-isolation] Downgrade isolated-conformance/region-merge cast diagnostics to warn-until-future

#89523 by gottesmm was merged 2026-05-29 05:12

AST: Adjust to "[ADT] Allow member pointers in map_range and map_to_vector (#181154)"

#89518 by AnthonyLatsis was merged 2026-05-29 07:12

AST: Add the `UselessConditionalStatement` warning group

#89513 by tshortli was merged 2026-05-29 10:47

Introduce _FoundationInternationalizationData library

#89509 by jmschonfeld was merged 2026-05-29 16:14

SILCombine: don't fold `unchecked_enum_data_addr` - `destroy_addr` for non-copyable enums

#89506 by eeckstein was merged 2026-05-29 03:38

[Embedded] Make sure we don't put generic witnesses into witness tables

#89505 by DougGregor was merged 2026-05-29 04:36

NFC: Add a couple of missing copyright headers

#89503 by hamishknight was merged 2026-05-28 19:13

SimplifyCFG: fix `switch_enum` optimization with a default case

#89502 by eeckstein was merged 2026-05-28 18:53

test wix upgrade

#89499 by charles-zablit was closed 2026-05-28 10:49

test: Fix flaky test

#89497 by AnthonyLatsis was merged 2026-05-28 11:09

[CMake] Consolidate and standardlize the embedded Swift library build

#89494 by DougGregor was merged 2026-05-29 17:04

Sema: Fix crash on invalid @dynamicMemberLookup subscript

#89493 by slavapestov was merged 2026-05-28 13:53

Establish NoncopyableReflectionSafety as present in 6.4

#89490 by kavon was merged 2026-05-28 16:12

[6.4] IRGen/Runtime: emit noncopyable field metadata

#89489 by kavon was merged 2026-05-28 16:12

[🍒6.4][Swiftify][Embedded] always return primary IGM for swiftify macros

#89488 by hnrklssn was merged 2026-05-28 10:33

[cxx-interop] Patch up compound names of imported methods

#89487 by j-hui was merged 2026-05-29 22:38

Remove a few usages of ExistentialLayout::getSuperclass()

#89484 by slavapestov was merged 2026-05-29 00:35

🍒 [6.4] [cxx-interop] Fix crash when specializing a templated SubscriptDecl

#89480 by j-hui was closed 2026-05-27 19:53

[ClangImporter] Import C++ subscript overloads in stable order c++ interop

#89478 by airspeedswift was merged 2026-05-29 04:06

utils: replace `-Skip` flags with positive forms

#89477 by compnerd was merged 2026-05-30 00:11

test/IRGen/builtin_borrow_large.swift is sensitive to stdlib build configuration

#89476 by jckarter was merged 2026-05-27 20:03

[6.4.x] Implement withContiguousStorageIfAvailable for EmptyCollection and CollectionOfOne

#89474 by jmschonfeld was merged 2026-05-29 02:28

Add regression test for redundant strong_retain/strong_release pair

#89473 by airspeedswift was merged 2026-05-28 13:33