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appendingPathComponent() API behaves incorrectly on Windows platform

bugSomething isn't workingSomething isn't working

windowsIssue regarding compiling/running on WindowsIssue regarding compiling/running on Windows

Status: Open.

#2005 In swiftlang/swift-foundation;

· bkhouri opened on May 28, 2026

Support for "local" dates and times

enhancementNew feature or requestNew feature or request

Status: Open.

#2002 In swiftlang/swift-foundation;

· FranzBusch opened on May 27, 2026

Consider using var default values as replacement for CodableDefault

enhancementNew feature or requestNew feature or request

new-codableRelated to new Swift (de)serialization APIsRelated to new Swift (de)serialization APIs

Status: Open.

#2001 In swiftlang/swift-foundation;

· kperryua opened on May 26, 2026

Consider runtime-specified value "template" value for missing fields (or patching)

enhancementNew feature or requestNew feature or request

new-codableRelated to new Swift (de)serialization APIsRelated to new Swift (de)serialization APIs

Status: Open.

#2000 In swiftlang/swift-foundation;

· kperryua opened on May 26, 2026

URL appending behavior change?

bugSomething isn't workingSomething isn't working

Status: Open.

#1931 In swiftlang/swift-foundation;

· hjyamauchi opened on Apr 27, 2026

Lazy, ~Escapable decoder/enumerator type (JSON)

enhancementNew feature or requestNew feature or request

new-codableRelated to new Swift (de)serialization APIsRelated to new Swift (de)serialization APIs

Status: Open.

Feature

#1914 In swiftlang/swift-foundation;

· kperryua opened on Apr 16, 2026

Support the new Saudi riyal symbol with formatter API

enhancementNew feature or requestNew feature or request

Status: Open.

#1911 In swiftlang/swift-foundation;

· 0xifarouk opened on Apr 16, 2026

FileManager: Support setting .creationDate where possible

bugSomething isn't workingSomething isn't working

Status: Open.

#1906 In swiftlang/swift-foundation;

· WFT opened on Apr 15, 2026

Thread safety issue in FoundationEssentials.Calendar

bugSomething isn't workingSomething isn't working

Status: Open.

#1886 In swiftlang/swift-foundation;

· TwirlySeal opened on Apr 8, 2026

Improved new-codable JSON support for large integers masquerading as floating points.

bugSomething isn't workingSomething isn't working

new-codableRelated to new Swift (de)serialization APIsRelated to new Swift (de)serialization APIs

Status: Open.

#1863 In swiftlang/swift-foundation;

· kperryua opened on Mar 30, 2026

Add a variant of KeyPathComparator that can be used with @MainActor types

enhancementNew feature or requestNew feature or request

Status: Open.

#1845 In swiftlang/swift-foundation;

· marcomasser opened on Mar 23, 2026

ucal performance opportunities

internationalization

Status: Open.

#1842 In swiftlang/swift-foundation;

· itingliu opened on Mar 21, 2026