Evolution

Announcements This category is for announcements of Swift evolution proposal reviews and results, as well as other administrative announcements. Creation of new topics in this category is by site admins and Swift Core Team members only, although anyone can reply to topics once created. Pitches The Pitches category is an area for pitching ideas for evolution of the Swift language prior to a formal review. Discussion The Evolution Discussion category is for general discussion of the evolution of the Swift language. Proposal Reviews This category is for posting Swift Evolution proposals for review and feedback.

Topic	Replies	Views	Activity
About the Evolution category Evolution	0	16338	January 18, 2018
SE-0470: Global-actor isolated conformances Proposal Reviews	7	526	March 25, 2025
[Pitch #3] `yielding` coroutine accessors Pitches	28	1509	March 25, 2025
The future of serialization & deserialization APIs Discussion foundation , codable , macros	101	6055	March 24, 2025
SE-0464: UTF8Span: Safe UTF-8 Processing Over Contiguous Bytes Proposal Reviews	37	959	March 24, 2025
[Pitch 2] Custom Main and Global Executors Pitches	35	668	March 24, 2025
SE-0467: MutableSpan Proposal Reviews	9	707	March 24, 2025
[Pitch] Deferred catch syntax to minimize nesting in common error-handling Pitches control-flow	0	164	March 24, 2025
[Pitch] Transactional observation of values Pitches concurrency , asyncsequence , observation	55	3538	March 23, 2025
[Pitch][SerialExecutor] Improved Custom SerialExecutor isolation checking Pitches	6	364	March 22, 2025
[Pitch] Build Progress Display Control for SwiftPM Plugins Pitches packagemanager , commandplugin	1	242	March 22, 2025
[Pitch] SwiftPM Support for Binary Static Library Dependencies Pitches linux , toolchain , packagemanager	15	525	March 22, 2025
Import swift file in script Pitches	21	16281	March 22, 2025
[Pitch] Compiler-Level Macro Support for Variadic Wrappers Pitches propertywrapper , macros , gsoc-2025	6	416	March 21, 2025
ST-0008: Exit Tests Proposal Reviews swift-testing	9	655	March 21, 2025
[Pitch] Isolated conformances Pitches	50	3260	March 21, 2025
SE-0468: Hashable conformance for Async(Throwing)Stream.Continuation Proposal Reviews	3	291	March 21, 2025
ST-0009: Attachments Proposal Reviews	1	466	March 21, 2025
SE-0469: Task Naming Proposal Reviews concurrency , task	31	1372	March 21, 2025
[Pitch] Making array and friends conform to Comparable Pitches	17	1159	March 21, 2025
[Pitch] Warning Control Settings for SwiftPM Pitches	5	227	March 20, 2025
Understanding by-value captures in @Sendable functions Discussion concurrency , sendable	2	173	March 20, 2025
[Pitch] Providing access to UCharDirection value in Unicode.Scalar.Properties Pitches unicode , bidi , unicode-icu	1	132	March 20, 2025
Experimental support for lifetime dependencies in Swift 6.2 and beyond Announcements lifetime	1	971	March 19, 2025
SE-0466: Control default actor isolation inference Proposal Reviews	27	1651	March 19, 2025
µPitch - SuspendingClock and ContinuousClock epochs Pitches	13	462	March 18, 2025
SE-0465: Standard Library Primitives for Nonescapable Types Proposal Reviews	6	587	March 18, 2025
[Accepted] SE-0465: Standard Library Primitives for Nonescapable Type Announcements	0	151	March 18, 2025
Weak captures in sendable/sending closures Discussion concurrency , closure , weak	18	338	March 18, 2025
[Pitch] Extensible enums for non-resilient modules Pitches swift	70	2211	March 18, 2025