Overview

127 Pull requests merged by36 people

• [Dependency Scanning] Discard and diagnose discovered binary modules built for an incompatible target

  #82552 mergedJul 18, 2025

• [Dependency Scanning] Consider-swift-module-file inputs when looking for dependencies

  #82934 mergedJul 18, 2025

• [concurrency] Add fixes from rjmccall's review on 6.2 to main

  #83177 mergedJul 18, 2025

• [NFC][RemoteInspection] Make MemoryReader::readRemoteAddress virtual

  #83123 mergedJul 18, 2025

• utils: build the static Obversation module on Windows

  #83158 mergedJul 18, 2025

• Build-Script: FreeBSD Package Preset

  #83159 mergedJul 18, 2025

• Miscellaneous availability cleanups

  #83162 mergedJul 18, 2025

• [RemoteInspection] Make MemoryReader::readRemoteAddress virtual

  #83122 mergedJul 18, 2025

• [6.2][Concurrency] NonisolatedNonsendingByDefault: Infernonisolated(nonsending) on declaration with special special semantics

  #83165 mergedJul 18, 2025

• [Concurrency] NonisolatedNonsendingByDefault: Infernonisolated(nonsending) on declaration with special special semantics

  #83164 mergedJul 18, 2025

• Update the rebranch scheme to use stable/21.x

  #83163 mergedJul 18, 2025

• [6.2] SILGen: Have emitSemanticStore cast off concurrency annotations.

  #83142 mergedJul 18, 2025

• SILGen: Have emitSemanticStore cast off concurrency annotations.

  #83107 mergedJul 18, 2025

• Runtimes: reworking Distributed build to work on Windows

  #83157 mergedJul 18, 2025

• InstructionSimplification: simplify negated integer comparisons

  #82804 mergedJul 18, 2025

• [SymbolGraphGen] check implicit clang decls for having extension parents

  #83143 mergedJul 18, 2025

• wasm-run.py: consistentwasmkit path withbuild_runtime_with_host_compiler

  #83134 mergedJul 18, 2025

• utils: fix split-cmdline

  #83169 mergedJul 18, 2025

• [cxx-interop] Adding swift_name attributes to virtual methods overrides

  #83067 mergedJul 18, 2025

• [6.2][android] Small test and build tweaks

  #82986 mergedJul 18, 2025

• [NFC][RemoteMirrors] Add "template" in front of calls to readRemoteAddress

  #82982 mergedJul 18, 2025

• [6.2][concurrency] Make optimize hop to executor more conservative for 6.2 around caller isolation inheriting functions.

  #83084 mergedJul 18, 2025

• [6.2][Concurrency] Downgrade isolated conformances toSendableMetatype protocols to a warning for implicitly@preconcurrency protocols.

  #83138 mergedJul 18, 2025

• [SE-0485, 6.2] OutputSpan and OutputRawSpan

  #83000 mergedJul 18, 2025

• [cxx-interop] Configure requires ObjC from frontend option

  #83130 mergedJul 18, 2025

• [Concurrency] Downgrade isolated conformances toSendableMetatype protocols to a warning for implicitly@preconcurrency protocols.

  #83136 mergedJul 17, 2025

• [TEST-ONLY] Speed up bridging-header-autochaining test

  #83140 mergedJul 17, 2025

• [NFC] wasmstdlib.py: fix Python typing error

  #83125 mergedJul 17, 2025

• [Test] Do not clear the module cache when not needed between compiler runs

  #83139 mergedJul 17, 2025

• 6.2: Build and install Testing and Foundation for Wasm Swift SDK

  #83059 mergedJul 17, 2025

• Runtimes: wire up the overlay to the Synchornization library

  #83131 mergedJul 17, 2025

• [SE-0485] OutputSpan and OutputRawSpan

  #81637 mergedJul 17, 2025

• wasisysroot.py: fixbuild_runtime_with_host_compiler diagnostics

  #83129 mergedJul 17, 2025

• tests: fix Interop/Cxx/foreign-reference/array-of-classes.swift

  #83126 mergedJul 17, 2025

• Add-scanner-prefix-map-paths to the frontend

  #82745 mergedJul 17, 2025

• [windows][lldb] fix incorrect LLVM_HOST_TRIPLE when cross-compiling

  #83061 mergedJul 17, 2025

• [6.2 🍒][Test Only] Add a test for correctly querying Clang global variable linkage when using-clang-target

  #83076 mergedJul 17, 2025

• Removecmake fromBrewfile

  #83060 mergedJul 17, 2025

• GettingStarted.md: avoid preinstalling CMake

  #83063 mergedJul 17, 2025

• [Test Only] Add a test for correctly querying Clang global variable linkage when using '-clang-target'

  #83075 mergedJul 17, 2025

• Runtimes: export the SwiftOverlay targets

  #83099 mergedJul 17, 2025

• [Runtimes][CMake] Add Distributed to Supplemental build

  #81529 mergedJul 17, 2025

• [6.2] Sema: Make@concurrent not implyasync on closures

  #83110 mergedJul 17, 2025

• FreeBSD: Fix issues in tests

  #83106 mergedJul 17, 2025

• Add missing symbols for Fedora 41

  #83098 mergedJul 17, 2025

• [6.2][Concurrency] Fix runtime isolated-conformance checks with static stdlib

  #83120 mergedJul 17, 2025

• [6.2] [Strict memory safety] "unsafe" expression never propagates unsafe outward

  #83119 mergedJul 17, 2025

• [6.2][Concurrency] Remove symbols of startSynchronously, make it AEIC

  #83089 mergedJul 17, 2025

• Fix warning in DispatchGlobalExecutor

  #83087 mergedJul 17, 2025

• [AST] Visit TypeValueExpr's TypeRepr in ASTWalker

  #83113 mergedJul 17, 2025

• [6.2] Revert nonisolated(unsafe) closure inference

  #83102 mergedJul 17, 2025

• [Strict memory safety] "unsafe" expression never propagates unsafe outward

  #83109 mergedJul 17, 2025

• ConstraintSystem: Make key paths for properties with unavailable setters read-only

  #83054 mergedJul 17, 2025

• GenericSpecializer: don't pre-specialize C++ reference type for AnyObject

  #83090 mergedJul 17, 2025

• [Sema] Set ReturnStmt result even if type-checking fails

  #83096 mergedJul 17, 2025

• Revert "[6.2] Accept@cdecl global functions and enums, behind experimental feature flags"

  #83103 mergedJul 17, 2025

• Sema: Make@concurrent not implyasync on closures

  #83094 mergedJul 17, 2025

• [Concurrency] Fix runtime isolated-conformance checks with static stdlib

  #83086 mergedJul 16, 2025

• Runtimes: add an initial build of Observation

  #83006 mergedJul 16, 2025

• [Concurrency] Remove symbols of startSynchronously, make it AEIC

  #82943 mergedJul 16, 2025

• [Runtimes] Enable overlay builds in macOS smoketest

  #83071 mergedJul 16, 2025

• [concurrency] Make optimize hop to executor more conservative for 6.2 around caller isolation inheriting functions.

  #83083 mergedJul 16, 2025

• [swift-ide-test] Add solver limit options

  #83093 mergedJul 16, 2025

• [6.2] [SE-0466] Nested types of nonisolated types don't infer main-actor isolation

  #83088 mergedJul 16, 2025

• [6.2] Accept@cdecl global functions and enums, behind experimental feature flags

  #82791 mergedJul 16, 2025

• [cxx-interop] Fix a test failing on iOS

  #83091 mergedJul 16, 2025

• [6.2] CI: Temporarily disable taskExecutor test with Task.immediate

  #83095 mergedJul 16, 2025

• Bridging: Bridge some basic classes likeswift::SourceLoc directly

  #82665 mergedJul 16, 2025

• [SE-0466] Nested types of nonisolated types don't infer main-actor isolation

  #83072 mergedJul 16, 2025

• Runtimes: correct the Android overlay install more precisely

  #83068 mergedJul 16, 2025

• AST: Remove MakeAbstractConformanceForGenericType

  #83070 mergedJul 16, 2025

• [6.2][Concurrency] Replacenonisolated withnonisolated(nonsending) when isolation is inferred

  #83064 mergedJul 16, 2025

• Sema: Diagnose invalid platform versions in more places

  #83051 mergedJul 16, 2025

• [SE-0488, 6.2] Implementation for SE-0488

  #83023 mergedJul 15, 2025

• [stdlib] Implementation for SE-0488

  #82959 mergedJul 15, 2025

• Add test case for apparently-fixed crasher

  #83062 mergedJul 15, 2025

• SILGen: Fix crash when default witness table entry comes from a concrete conformance

  #83046 mergedJul 15, 2025

• Fix doc comment of DiscontiguousSlice.swift to make it match the code

  #82220 mergedJul 15, 2025

• Bailout SwiftCompilerSource's function signature opts for functions with lifetime dependencies

  #83037 mergedJul 15, 2025

• 🍒 [6.2] line-directive: Stop expanding response files

  #82166 mergedJul 15, 2025

• [6.2][Serialization] Movenonisolated(nonsending) isolation kind above g…

  #83048 mergedJul 15, 2025

• [6.2] Bailout from an illegal transformation in semantic arc opts

  #83058 mergedJul 15, 2025

• Bailout from an illegal transformation in semantic arc opts

  #83052 mergedJul 15, 2025

• [Concurrency] Replacenonisolated withnonisolated(nonsending) wh…

  #83056 mergedJul 15, 2025

• Swift-Certificates: 1.10.0 -> 1.10.1

  #82999 mergedJul 15, 2025

• [cxx-interop] Types exposed from ObjC modules should be behind a macro

  #83002 mergedJul 15, 2025

• Protocol conformance cache for generic types

  #82818 mergedJul 15, 2025

• Add simplification for end_cow_mutation_addr

  #82890 mergedJul 15, 2025

• [cxx-interop] Fix assert failure due to invalid location

  #83032 mergedJul 15, 2025

• [cxx-interop] Re-enable warnings for unannotated C++ APIs returning SWIFT_SHARED_REFERENCE types under an experimental feature flag

  #82488 mergedJul 15, 2025

• SILGen: Fix an assert when emitting SIL forif #available

  #83035 mergedJul 15, 2025

• [Concurrency] add fixit to add final to non-sendable class -> Sendable

  #83053 mergedJul 15, 2025

• [6.2] [Sema] Avoid folding sequences multiple times for completion

  #83036 mergedJul 15, 2025

• [Sema] Avoid folding sequences multiple times

  #83034 mergedJul 15, 2025

• [Serialization] Movenonisolated(nonsending) isolation kind above g…

  #83047 mergedJul 15, 2025

• unittests: Build runtime unit tests with-DGTEST_NO_LLVM_SUPPORT

  #83045 mergedJul 15, 2025

• [test] Add some more known crashers

  #83026 mergedJul 15, 2025

• [6.2][Test] Fix test failure caused by invalid iOS version for availability

  #83041 mergedJul 15, 2025

• [6.2] SILGen: Properly set up addressability scopes for case pattern bindings.

  #83038 mergedJul 15, 2025

• Tests: Usellvm-readtapi instead ofdiff in TBDGen tests

  #83042 mergedJul 14, 2025

• Serialization: Align conformance recovery logic across compiler modes

  #83003 mergedJul 14, 2025

• [6.2] Use the "prohibits isolated conformances" check for capture metatypes

  #83020 mergedJul 14, 2025

• [6.2] Disable function signature optimization on functions with lifetime dependencies

  #82963 mergedJul 14, 2025

• [Test] Fix test failure caused by invalid iOS version for availability

  #83039 mergedJul 14, 2025

• build-presets.ini: addwasm_stdlib,macos for at-desk development

  #83030 mergedJul 14, 2025

• Runtime: install APINotes to the right location

  #83033 mergedJul 14, 2025

• utils/wasm-run.py: clean up naming for WASIRunner

  #83028 mergedJul 14, 2025

• [CS] HandleTVO_CanBindToPack inmergeEquivalenceClasses

  #83029 mergedJul 14, 2025

• [NFC][RemoteInspection] Add an opaque AddressSpace field to RemoteAddress

  #82997 mergedJul 14, 2025

• [6.2] [nonisolated-nonsending] Make the AST not consider nonisolated(nonsending) to be an actor isolation crossing point.

  #82776 mergedJul 14, 2025

• [6.2] Disable retain and release sinking when rc root values are ~Copyable

  #82974 mergedJul 14, 2025

• Tests: Fix missing dylib on device incdecl_implementation_run.swift

  #82996 mergedJul 14, 2025

• Use the "prohibits isolated conformances" check for capture metatypes

  #83019 mergedJul 14, 2025

• [6.2] IRGen fixes to avoid using mangled names for metadata on older platforms

  #83013 mergedJul 14, 2025

• CI: Temporarily disable taskExecutor test with Task.immediate

  #83027 mergedJul 14, 2025

• 🍒 Cherry pick StdlibDeploymentTarget to 6.2

  #82838 mergedJul 14, 2025

• [Concurrency] Remove custom global executors from 6.2.

  #82915 mergedJul 14, 2025

• SILGen: Properly set up addressability scopes for case pattern bindings.

  #83009 mergedJul 14, 2025

• Revert "Test Interop/Cxx/stdlib/overlay/custom-collection.swift fails on bots"

  #82502 mergedJul 13, 2025

• utils: correct flag handling for static runtime libdispatch handling

  #83007 mergedJul 13, 2025

• core: add some additionalunsafe markers

  #83016 mergedJul 13, 2025

• [6.2][Concurrency] Don't downgrade explicit isolation attribute clashes

  #82998 mergedJul 13, 2025

• [RemoteMirrors] Fix losing the remote address on StaticMirror

  #82981 mergedJul 12, 2025

• [IRGen] Don't use mangled names for metadata including Span et al when back-deploying

  #83012 mergedJul 12, 2025

• Prepared overloads, part 3

  #83015 mergedJul 12, 2025

• [6.2🍒]: RemoteInspection: Skip unused ELF section headers

  #82970 mergedJul 12, 2025

• [Runtimes][CMake] Find Shims, OnoneSupport and Concurrency in FindSwi…

  #81982 mergedJul 12, 2025

44 Pull requests opened by32 people

• Diagnose unannotated C++ APIs returning SWIFT_SHARED_REFERENCE types at their Swift usage sites

  #83025 openedJul 14, 2025

• [NFC][RemoteInspection] Subtracting remote addresses should return int

  #83040 openedJul 14, 2025

• Add pretty print and skip synthesized members options to swiftc

  #83044 openedJul 14, 2025

• Update docs for ObjectIdentifier to mention actors

  #83049 openedJul 14, 2025

• [Dependency Scanning] Restrict Swift overlay lookup to "visible" Clang modules only

  #83050 openedJul 14, 2025

• [6.2] Bailout SwiftCompilerSource's function signature opts for functions with lifetime dependencies

  #83057 openedJul 15, 2025

• [6.2][cxx-interop] Types exposed from ObjC modules should be behind a macro

  #83065 openedJul 15, 2025

• utils: Remove redundant CMake options

  #83069 openedJul 15, 2025

• WIP vectorization for UTF16->UTF8

  #83073 openedJul 15, 2025

• [6.2][IRGen] Set generic context before getting call emission in visitFull…

  #83074 openedJul 15, 2025

• [6.2][Concurrency] add fixit to add final to non-sendable class -> Sendable

  #83092 openedJul 16, 2025

• Revert "Preserve existing printing/mangling behavior for C++ specializations."

  #83101 openedJul 16, 2025

• update_checkout: add swift-subprocess to the checkout set

  #83104 openedJul 16, 2025

• [DNM] Fix getLoweredOwnership() for setters of ~Escapable types

  #83108 openedJul 16, 2025

• [DNM] Diagnose @_lifetime on targets that are Escapable

  #83111 openedJul 16, 2025

• test/CMakeLists.txt: run Embedded Swift for Wasm tests

  #83128 openedJul 17, 2025

• RuntimeModule: make the C++ code actually build on Windows

  #83132 openedJul 17, 2025

• build-script: allow `--test-wasm-stdlib` without `--build-wasm-stdlib`

  #83135 openedJul 17, 2025

• Sema: Improve the infinite opaque return type check

  #83141 openedJul 17, 2025

• [Test] Fix IRGen/abi_v7k.swift

  #83145 openedJul 17, 2025

• [TypeChecker] NFC: Rename `CallerIsolationInheriting` to `NonisolatedCaller`

  #83147 openedJul 17, 2025

• Use an explicit unsigned comparison for span index checks

  #83150 openedJul 17, 2025

• [stdlib] Generalize `Array(unsafeUninitializedCapacity:initializingWith:)` for typed throws

  #83160 openedJul 17, 2025

• [stdlib] Handle arguments with alignment larger than a word in KeyPath

  #83161 openedJul 17, 2025

• [Concurrency] Never apply default main actor isolation to local declarations.

  #83166 openedJul 18, 2025

• [wasm] Rename `wasm32-unknown-wasi` to `wasm32-unknown-wasip1`

  #83167 openedJul 18, 2025

• AST/Sema: Generalize availability fix-its to support custom availability domains

  #83168 openedJul 18, 2025

• [IDE] Fix assertion failure in `PostfixCompletionCallback::Result::tryMerge`

  #83170 openedJul 18, 2025

• [Test][Concurrency] Increase the output we get when reflect_task fails.

  #83171 openedJul 18, 2025

• Improve Span bounds check elimination by adding `_assumeNonNegative` to `count`

  #83172 openedJul 18, 2025

• [Clang importer] Import incomplete SWIFT_SHARED_REFERENCE types

  #83173 openedJul 18, 2025

• utils: add Distributed to the experimental Windows SDK

  #83174 openedJul 18, 2025

• [Concurrency] Only apply default main actor to local and nested decls that are in a main actor isolated context.

  #83175 openedJul 18, 2025

• [cxx-interop] Fix name mangling for reference types

  #83176 openedJul 18, 2025

• [utils] expand @-filelist files with .resp filename extensions

  #83178 openedJul 18, 2025

• [ASTVerifier] Allow `inout` and `Array` to pointer conversion in vari…

  #83179 openedJul 18, 2025

• [swift-snapshot-tool] Make computing the branch name part of the download url more flexible so it works for release branches.

  #83180 openedJul 18, 2025

• [cxx-interop] Prevent protocol conformance table from being prematurely populated

  #83181 openedJul 18, 2025

• Better docs for UTF8Span

  #83184 openedJul 18, 2025

• [NFC] Stack allocate buffer in readRemoteAddressImpl instead of malloc

  #83185 openedJul 18, 2025

• Sema: Add a type checker test that is now fast

  #83186 openedJul 18, 2025

• Enable two reflection tests on Linux (aarch64)

  #83187 openedJul 18, 2025

• [rebranch] Get rebranch swift-frontend building again

  #83188 openedJul 19, 2025

• Add linker flag for compatibility with Android 15+ devices using 16KB memory pages

  #83189 openedJul 19, 2025

14 Issues closed by11 people

• `@preconcurrency` conformances warns for inherited protocols

  #82782 closedJul 18, 2025

• [non_sendable_param_in_override] Unexpected diagnostic for nonisolated override of implicit async objc message

  #83127 closedJul 18, 2025

• Make conversion between `BridgedIdentifier` and `Identifier` implicit

  #68347 closedJul 18, 2025

• Cannot use `-enable-objc-interop` on Linux with Foundation

  #76247 closedJul 18, 2025

• [SR-655] Private C modules

  #43272 closedJul 18, 2025

• Compiler allows unlimited use of `unsafe` keyword

  #82315 closedJul 17, 2025

• Swift 6 erroneously thinks struct initializer and read-only computed property are main-actor isolated

  #82812 closedJul 17, 2025

• Typed throws not honored for call to generic closure in closure

  #82100 closedJul 17, 2025

• Appending a SWIFT_SHARED_REFERENCE to a Swift array crashes at runtime when compiled in Release

  #83082 closedJul 17, 2025

• Cannot mangle free-standing archetype

  #83021 closedJul 17, 2025

• WebAssembly does not support runtime checking of isolated conformances

  #82825 closedJul 16, 2025

• Assertion failed: (hasType(node) && "Expected type to have been set!") when assigning `self` from implicit `error` variable

  #75845 closedJul 15, 2025

• Capture of non-Sendable type AsyncIterator.Type warning

  #82905 closedJul 14, 2025

• Android CI: swift-foundation: error: 'nil' is not compatible with expected element type 'UnsafeMutablePointer<CChar>'

  #82993 closedJul 14, 2025

38 Issues opened by17 people

• Generated bridging header produces warnings for unavailable computed vars

  #83183 openedJul 18, 2025

• SIL verification crash when using nonisolated(nonsending) with override of objc implicit async func.

  #83182 openedJul 18, 2025

• Subscripts that use type placeholders crash the compiler.

  #83156 openedJul 17, 2025

• Add support for std::ostream in Swift

  #83155 openedJul 17, 2025

• Add a way to extract elements from std::tuple in Swift

  #83154 openedJul 17, 2025

• Add support for importing operator function templates from C++

  #83153 openedJul 17, 2025

• Add support for default arguments in C++ function templates

  #83152 openedJul 17, 2025

• C++ struct holding std::vector<std::unique_ptr<int>> can't be used in Swift: get obscure template errors instead of being imported as ~Copyable

  #83151 openedJul 17, 2025

• API Notes doesn't support renaming function overloads with different arities

  #83149 openedJul 17, 2025

• Adding `import CxxStdlib` makes diagnostic about not enabling C++ interoperability harder to understand

  #83148 openedJul 17, 2025

• Calling free function template with SWIFT_NAME + import-as-member as free function crashes compiler

  #83146 openedJul 17, 2025

• SWIFT_NAME annotation has no effect on function templates

  #83144 openedJul 17, 2025

• AsyncStream(unfolding:onCancel:) onCancel block is called twice

  #83137 openedJul 17, 2025

• `sending` a non-Sendable value and erasing it bypasses data race safety checks

  #83124 openedJul 17, 2025

• Compiler fails to detect data race when putting a closure into multiple instances of a wrapper struct

  #83121 openedJul 17, 2025

• API notes should support annotating templated C++ tags

  #83118 openedJul 16, 2025

• Swift Array addition causes unrelated C++ static_assert to fail

  #83117 openedJul 16, 2025

• Swift instantiates default arguments for function templates too eagerly

  #83116 openedJul 16, 2025

• Conforming C++ enum to Swift protocol causes linker errors (missing destructors for STL types)

  #83115 openedJul 16, 2025

• Inherited methods from non-imported C++ types aren't available on imported types

  #83114 openedJul 16, 2025

• Calling Swift subscript across module boundary accesses uninitialized memory in Release (C++ interop)

  #83112 openedJul 16, 2025

• Compiler crashes during type checking, Xcode 26b3

  #83105 openedJul 16, 2025

• Compiler fails to guarantee exclusive access to inout parameter when using async let

  #83100 openedJul 16, 2025

• When calling a Swift function that takes two `std::function`s with const-reference types as arguments, the Swift compiler crashes

  #83097 openedJul 16, 2025

• Calling friend function of type nested in C++ namespace crashes Swift compiler

  #83085 openedJul 15, 2025

• Templated C++ function incorrectly imported as returning `Void` in Swift

  #83081 openedJul 15, 2025

• Assigning a non-nil value to a weak SWIFT_SHARED_REFERENCE variable crashes at runtime

  #83080 openedJul 15, 2025

• Templated overload causes substitution failure in Swift but not in C++ (SFINAE)

  #83079 openedJul 15, 2025

• Calling __convertToBool() from Swift on derived C++ value type crashes

  #83078 openedJul 15, 2025

• Linker error when accessing C++ constant static member from Swift

  #83077 openedJul 15, 2025

• Fresh install on Windows fails to compile

  #83066 openedJul 15, 2025

• Type with parameter pack argument fails to be erased to an opaque type.

  #83055 openedJul 15, 2025

• Poor diagnostic for `swift x.swift` where `x.swift` contains `@main`

  #83043 openedJul 14, 2025

• Crash when using a protocol extension with a self requirement in an assignment to existential any type

  #83031 openedJul 14, 2025

• Volume is disabled

  #83024 openedJul 13, 2025

• RegexBuilder: multiple Captures with transforms are clobbering each others' transformed values

  #83022 openedJul 13, 2025

• [Crash][Optimizer] Non trivial values, non address values, and non guaranteed function args must have at least one lifetime ending use?! Found ownership error?!

  #83018 openedJul 12, 2025

• Assertion failed: isa<To>(Val) && "cast<Ty>() argument of incompatible type!", file D:\r\_work\swift-build\swift-build\SourceCache\llvm-project\llvm\include\llvm/Support/Casting.h, line 578

  #83017 openedJul 12, 2025

62 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• [IDE] Add full documentation to code completion result

  #82464 commented onJul 18, 2025 • 22 new comments

• [Diagnostics] Add fix-it to `@main` struct without main static function.

  #82989 commented onJul 18, 2025 • 17 new comments

• Reimplement floating-point description implementation in Swift.

  #82750 commented onJul 17, 2025 • 3 new comments

• [Runtimes][CMake] Build Differentiation in new style.

  #81239 commented onJul 17, 2025 • 2 new comments

• [Concurrency] Correct isolation handling with default act and task exec

  #82942 commented onJul 16, 2025 • 2 new comments

• [CMAKE] Fix layering issue between Concurrency and Darwin overlay

  #82973 commented onJul 16, 2025 • 1 new comment

• [DNM][stdlib] Add Box, UnsafeCell, Cell, RefCell, Borrow, and Inout

  #82931 commented onJul 14, 2025 • 1 new comment

• [SILGen] Fix the type of closure thunks that are passed const reference structs

  #82486 commented onJul 18, 2025 • 1 new comment

• [DNM] Add more detailed logging for corelibs foundation

  #82755 commented onJul 14, 2025 • 0 new comments

• Unroll internal func _bytesToUInt64 from SmallString.swift

  #82704 commented onJul 16, 2025 • 0 new comments

• [docs] Add Multi-Module Compilation Guide and Examples

  #82640 commented onJul 14, 2025 • 0 new comments

• Fix bug Benchmark_Driver writing benchmark log in unsupported format

  #82606 commented onJul 15, 2025 • 0 new comments

• Use SWIFT_COMPILER_VERSION before SWIFT_TOOLCHAIN_VERSION if it exists

  #82514 commented onJul 17, 2025 • 0 new comments

• [Concurrency] Updates after second SE pitch.

  #82456 commented onJul 15, 2025 • 0 new comments

• [Observation] Restrict deinitialization fired events to be limited to one per registrar and send a \Self.self as the keypath to avoid property confusions

  #82307 commented onJul 18, 2025 • 0 new comments

• Re-apply "Tests: enable Swift PM tests in Windows toolchain build""

  #82274 commented onJul 15, 2025 • 0 new comments

• [Concurrency][Embedded] Make sure Embedded Swift links Impl functions.

  #82270 commented onJul 15, 2025 • 0 new comments

• Swift 6.2 emits "Capture of non-sendable type" warning incorrectly when declaring closure that captures generic type

  #82133 commented onJul 12, 2025 • 0 new comments

• Add type annotations to `ProductPipeline` in `build-script`

  #82780 commented onJul 15, 2025 • 0 new comments

• Avoid dynamic executor checks when calling synchronous non-escaping closures

  #82795 commented onJul 17, 2025 • 0 new comments

• [stdlib] Fix: Correct typo in _adHocPrint_unlocked comment

  #82820 commented onJul 16, 2025 • 0 new comments

• Update SwiftCompilerSources AllocBoxToStack to handle mark_dep.

  #82853 commented onJul 14, 2025 • 0 new comments

• [IDE] Add USR to Decl reconstruction

  #82887 commented onJul 18, 2025 • 0 new comments

• [cmake] add FindSwiftPlatformOverlay.cmake

  #82895 commented onJul 14, 2025 • 0 new comments

• [windows] update to the 6.1.2 toolchain in build.ps1

  #82914 commented onJul 16, 2025 • 0 new comments

• [6.2 🍒][Dependency Scanning] Consider `-swift-module-file` inputs when looking for dependencies

  #82939 commented onJul 18, 2025 • 0 new comments

• [concurrency] Make optimize hop to executor more conservative around caller_isolation_inheriting functions

  #82958 commented onJul 16, 2025 • 0 new comments

• Enable InlineArray type sugar

  #82987 commented onJul 14, 2025 • 0 new comments

• [6.2] Enable InlineArray type sugar

  #82988 commented onJul 14, 2025 • 0 new comments

• DNM/WIP: Fix embedded concurrency for Wasm

  #82992 commented onJul 17, 2025 • 0 new comments

• [Compile Time Constant Extraction] Support for open existential expressions

  #83008 commented onJul 14, 2025 • 0 new comments

• Revert "[Build] Temporarily add -j 1 to swift-corelibs-foundation Windows build"

  #83010 commented onJul 17, 2025 • 0 new comments

• Swift 6.2: undesired "Capture of non-sendable type 'T.Type'" warnings

  #82116 commented onJul 12, 2025 • 0 new comments

• Swift 6 typed-throws unable to detect exhaustive catch statements

  #74555 commented onJul 14, 2025 • 0 new comments

• Put together an Android SDK bundle

  #80788 commented onJul 14, 2025 • 0 new comments

• Crash in Swift 6.1 when using async let inside a do {} block (Xcode 16.3+)

  #81771 commented onJul 15, 2025 • 0 new comments

• Compiler crash (regression) relating to typed throws and primary associated types

  #80732 commented onJul 15, 2025 • 0 new comments

• [SR-14162] Index store does not relate static property getter used as subscript key.

  #56541 commented onJul 15, 2025 • 0 new comments

• [SR-13930] Index store does not relate objc optional protocol method implemented in subclass

  #56327 commented onJul 15, 2025 • 0 new comments

• [SR-13792] Index store should relate appendInterpolation from string literals

  #56189 commented onJul 15, 2025 • 0 new comments

• [SR-13768] Index store does not relate constructor via literal notation

  #56165 commented onJul 15, 2025 • 0 new comments

• [SR-8682] Sort doesn't work correctly in recent master

  #51196 commented onJul 16, 2025 • 0 new comments

• [SR-1171] Changed property from T? to T caused link failure due to incremental compilation not detecting change

  #43779 commented onJul 16, 2025 • 0 new comments

• Can't invoke closure involving generic parameter packs, unless it's first assigned to a local variable.

  #77368 commented onJul 16, 2025 • 0 new comments

• Linux: --debug-swift: undefined symbol: ss27_allocateUninitializedArrayySayxG_BptBwlFyp_Tg5

  #78815 commented onJul 16, 2025 • 0 new comments

• Swift compiler crash in SIL generation with generic type parameter substitution - "Fell off the end: (generic_type_param_type depth=0 index=0 param_kind=type)"

  #82199 commented onJul 17, 2025 • 0 new comments

• TaskGroup.reduce() can't be used in GlobalActor isolated context in Swift 6

  #74759 commented onJul 17, 2025 • 0 new comments

• Compiler crash while emitting IR SIL function for Swift Macro

  #80062 commented onJul 17, 2025 • 0 new comments

• AbstractStorageDecl's setter access is out of sync with the access actually on the setter

  #82637 commented onJul 17, 2025 • 0 new comments

• Can't forward `inout sending` argument to another function

  #82553 commented onJul 18, 2025 • 0 new comments

• [stdlib][string] Refactors String(repeating:count:)

  #32369 commented onJul 16, 2025 • 0 new comments

• [DNM] Cross-repo testing PR

  #65101 commented onJul 15, 2025 • 0 new comments

• DNM: toolchain build

  #65907 commented onJul 18, 2025 • 0 new comments

• [DNM] PR Test

  #71188 commented onJul 16, 2025 • 0 new comments

• [Sema] Fix compiler error when extending a typealias of a partially specialized generic type

  #73169 commented onJul 14, 2025 • 0 new comments

• utils: enable early swift driver on Windows

  #76574 commented onJul 18, 2025 • 0 new comments

• [AutoDiff] Do not require no optimizations for control_flow test

  #78604 commented onJul 17, 2025 • 0 new comments

• [DNM] Rebranch testing

  #81190 commented onJul 15, 2025 • 0 new comments

• [cxx-interop] [experiment] Error for unannotated c++ APIs returning SWIFT_SHARED_REFERENCE types

  #81347 commented onJul 13, 2025 • 0 new comments

• [MacrosOnImports][Swiftify] Copy module imports from clang node's module to its Swift macro SourceFile

  #81859 commented onJul 17, 2025 • 0 new comments

• utils: refactor CMake invocation construction

  #82135 commented onJul 18, 2025 • 0 new comments

• [NFC] [cxx-interop] Re-enabling a test on Windows platform.

  #82143 commented onJul 19, 2025 • 0 new comments