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(6.3 regression) "Failed to produce diagnostic" with missing closure argument

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

Bug

#87818 In swiftlang/swift;

· KeithBauerANZ opened on Mar 11, 2026

Concurrency module needs to be updated to typed throws

ConcurrencуArea → standard library: The `Concurrency` module under the standard library umbrellaArea → standard library: The `Concurrency` module under the standard library umbrella

standard libraryArea: Standard library umbrellaArea: Standard library umbrella

typed throwsFeature → error handling → throws & rethrows: Typed throwsFeature → error handling → throws & rethrows: Typed throws

Status: Open.

Task

#87810 In swiftlang/swift;

· iCharlesHu opened on Mar 11, 2026

Tests are failing when using CFRunLoopPerformBlock on the same thread in more than 15 tests

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

Bug

#87805 In swiftlang/swift;

· mrtsamma opened on Mar 11, 2026

Inconsistent behavior between package import and internal import when used with package access level in extensions

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

Bug

#87796 In swiftlang/swift;

· glbrntt opened on Mar 11, 2026

is inaccessible due to '@_spi' protection level when accessing member from a privately imported module in macro

macro expansionsFeature → expressions: Macro expansion expressionsFeature → expressions: Macro expansion expressions

Status: Open.

#87795 In swiftlang/swift;

· ahoppen opened on Mar 11, 2026

OutOfOrderArgumentFailure

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

Status: Open.

Bug

#87792 In swiftlang/swift;

· 2ECC71 opened on Mar 11, 2026

Can't send closure with isolated parameter to an actor

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

Bug

#87785 In swiftlang/swift;

· stephencelis opened on Mar 10, 2026

[debuginfo][DWARF] Missing line number in DWARF line table for force-cast/force-unwrap trap path

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

Bug

#87781 In swiftlang/swift;

· swillits opened on Mar 10, 2026

"isolate this conformance with @MainActor" suggested when @MainActor already present

concurrencyFeature: umbrella label for concurrency language featuresFeature: umbrella label for concurrency language features

diagnostics qualityBug: The quality of compiler diagnosticsBug: The quality of compiler diagnostics

swift 6.2

Status: Open.

Bug

#87776 In swiftlang/swift;

· a-viv-a opened on Mar 10, 2026

nonisolated(nonsending) @Sendable or sending closures lose their dynamic isolation when capturing an isolated parameter

actor isolationFeature → concurrency: Actor isolationFeature → concurrency: Actor isolation

closuresFeature: closuresFeature: closures

compilerThe Swift compiler itselfThe Swift compiler itself

concurrencyFeature: umbrella label for concurrency language featuresFeature: umbrella label for concurrency language features

nonisolated(nonsending)Feature → modifiers: The "nonisolated(nonsending)" modifierFeature → modifiers: The "nonisolated(nonsending)" modifier

SendableArea → standard library: The Sendable protocolArea → standard library: The Sendable protocol

Status: Open.

Bug

#87768 In swiftlang/swift;

· NotTheNHK opened on Mar 10, 2026

swift-frontend crash for Protocol KeyPath

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

Bug

#87765 In swiftlang/swift;

· miku1958 opened on Mar 10, 2026

Support for child notes in Diagnostic Verifier

diagnostic verifierArea → compiler → Frontend: The `DiagnosticVerifier` classArea → compiler → Frontend: The `DiagnosticVerifier` class

Status: Open.

Feature

#87761 In swiftlang/swift;

· hnrklssn opened on Mar 10, 2026