Evolution

Proposal Reviews This category is for posting Swift Evolution proposals for review and feedback. 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. Discussion The Evolution Discussion category is for general discussion of the evolution of the Swift language. Pitches The Pitches category is an area for pitching ideas for evolution of the Swift language prior to a formal review.

Topic	Replies	Views	Activity
About the Evolution category Evolution	0	16740	January 18, 2018
Pitch: Compilation Caching Support in SwiftPM Pitches packagemanager , swiftpm	11	1086	July 24, 2026
SE-0538: Disconnected Proposal Reviews	20	1248	July 24, 2026
[Pitch] Flexible Swift/C Interoperability in Packages Pitches packagemanager	8	586	July 24, 2026
[Pitch/Discussion] Rename symbols that have been audited as unsafe (or fix LLVM) Pitches	3	140	July 24, 2026
"New Codable" prototype available for feedback Discussion codable , macros	76	5448	July 24, 2026
Same-file memberwise initializer extensions Pitches	26	421	July 24, 2026
[Pitch] Union of Version Ranges for Package Dependencies Pitches	0	76	July 23, 2026
Living with default isolation controls Discussion concurrency	6	326	July 23, 2026
[Pitch] Deprecating Package Products in the Package Manifest Pitches packagemanager , pitch	1	161	July 23, 2026
SE-0414 clarification: examples of isolation regions may be confusing Discussion	0	78	July 23, 2026
[Pitch 2] Allowing for partial mutation and consumption inside of non-`Copyable` type `deinit` Pitches	2	275	July 22, 2026
[Pitch] Lazy Accessor Macros Pitches compiler , lazy , macros	9	915	July 22, 2026
How to test package traits? Discussion testing , traits	4	691	July 22, 2026
Contemplating Default Isolation Control Discussion concurrency	19	1561	July 22, 2026
Conform InlineArray to Hashable Pitches	13	393	July 21, 2026
SE-0537: Section Placement Control for Functions Proposal Reviews	7	638	July 21, 2026
[Pitch] Literate Swift Pitches	5	831	July 21, 2026
[Pitch] A Structured Approach to Build and Test Results Data Pitches xcode , tools , xctest , build-tools , swift-testing	10	876	July 21, 2026
[Review] SE-0534: Opt-in exact matching for version identifiers with build metadata Proposal Reviews swiftpm	22	928	July 20, 2026
[Pitch] @Concurrent macro Pitches concurrency	25	1367	July 19, 2026
[Pitch 4] Delayed Enqueuing for Executors Pitches	26	1129	July 17, 2026
ST-0026: TaskLocal test trait Proposal Reviews swift-testing	0	133	July 17, 2026
[Pitch] Move TopLevelEncoder and TopLevelDecoder to the standard library Pitches codable , pitch	12	569	July 16, 2026
A native, Zig-style libc for swiftlang Discussion	7	812	July 16, 2026
[Amendment accepted] SE-0525: Safe loading API for `RawSpan` Announcements	0	190	July 15, 2026
SE-0536: Package Registry Search Proposal Reviews packagemanager	9	555	July 14, 2026
[Second Review] SE-0478: File-level defaults Proposal Reviews	56	2193	July 14, 2026
[Accepted with modifications] SE-0478: File-level defaults Announcements	0	301	July 14, 2026
[Pitch] Revise Swift Testing's Attachment/Encodable interop Pitches swift-testing	1	218	July 13, 2026