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0.formatted(.byteCount(style: .binary)) crashes because it's not thread-safe

bugSomething isn't workingSomething isn't working

Status: Open.

#1818 In swiftlang/swift-foundation;

· wade-tregaskis opened on Mar 14, 2026

NewJSONDecoder needs span-taking decode functions

enhancementNew feature or requestNew feature or request

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

Status: Open.

#1811 In swiftlang/swift-foundation;

· kperryua opened on Mar 10, 2026

SortDescriptor.AllowedComparison type metadata not exported on Linux (release mode linker failure)

Status: Open.

#1800 In swiftlang/swift-foundation;

· jsflax opened on Mar 7, 2026

addingPercentEncoding should be part of Essentials

enhancementNew feature or requestNew feature or request

Status: Open.

#1796 In swiftlang/swift-foundation;

· 0xTim opened on Mar 4, 2026

Accessing AttributedString.runs on Windows results in undefined symbols

bugSomething isn't workingSomething isn't working

Status: Open.

#1790 In swiftlang/swift-foundation;

· manavgabhawala opened on Mar 3, 2026

Implement Android shims in Swift instead of C

Status: Open.

#1769 In swiftlang/swift-foundation;

· madsodgaard opened on Feb 21, 2026

JSONEncoder incorrectly applies key encoding strategy to CodingKeyRepresentable dictionary keys

bugSomething isn't workingSomething isn't working

Status: Open.

#1681 In swiftlang/swift-foundation;

· ShivaHuang opened on Jan 12, 2026

String(utf8String:) should be in Swift Foundation

enhancementNew feature or requestNew feature or request

Status: Open.

#1660 In swiftlang/swift-foundation;

· 0xTim opened on Dec 19, 2025

Data's closure-taking functions should be modernized

enhancementNew feature or requestNew feature or request

Status: Open.

#1638 In swiftlang/swift-foundation;

· glessard opened on Dec 10, 2025

Inconsistent behaviour of CodableConfiguration with optional types

bugSomething isn't workingSomething isn't working

Status: Open.

#1630 In swiftlang/swift-foundation;

· TomaszLizer opened on Dec 5, 2025

JSONDecoder throws a broken error when parsing decimal value as Int

bugSomething isn't workingSomething isn't working

Status: Open.

#1604 In swiftlang/swift-foundation;

· hiragram opened on Nov 17, 2025

Is it possible to use Swift for the IDNA support?

enhancementNew feature or requestNew feature or request

Status: Open.

#1603 In swiftlang/swift-foundation;

· MahdiBM opened on Nov 16, 2025