Evolution

Proposal Reviews This category is for posting Swift Evolution proposals for review and feedback. Discussion The Evolution Discussion category is for general discussion of the evolution of the Swift language. 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.

Topic	Replies	Views	Activity
About the Evolution category Evolution	0	16566	January 18, 2018
[Pitch 2] Safe loading of values from `RawSpan` Pitches	67	783	January 21, 2026
SE-0506 Advanced Observation Tracking Proposal Reviews	8	336	January 21, 2026
Pitch: System in the toolchain Pitches	3	242	January 21, 2026
[Pitch] Box Pitches	80	2439	January 21, 2026
[Pitch] Software Bill of Materials (SBOM) Generation for Swift Package Manager Pitches packagemanager	13	1108	January 21, 2026
SE-0486: Migration tooling for Swift features Proposal Reviews	13	1468	January 21, 2026
SE-0504: Task Cancellation Shields Proposal Reviews	50	1951	January 20, 2026
[Pitch] Method capture lists (self / weak self / unowned self / none) for controlling implicit `self` in method bodies Pitches concurrency , functions	25	588	January 20, 2026
[Call for Volunteers] Add `isTriviallyIdentical(to:)` Methods to More Concrete Types Discussion	0	121	January 20, 2026
SE-0505: Delayed Enqueuing for Executors Proposal Reviews	7	437	January 20, 2026
Revisiting Union Types in Swift for typed throws Discussion	9	944	January 20, 2026
NSString.contains(_:) returns false for empty string argument Discussion	9	3010	January 20, 2026
Allow $ prefix fields in protocols Pitches	0	141	January 20, 2026
SE-0501: HTML Coverage Report Proposal Reviews packagemanager	30	1168	January 20, 2026
SE-0503: Suppressed Default Conformances on Associated Types With Defaults Proposal Reviews	4	439	January 20, 2026
Shorthand for checking equality against multiple enum cases Discussion enums , comparison	34	1497	January 19, 2026
[Pitch] [Embedded] "Unicode" availability domain for APIs requiring the Unicode tables Pitches	10	670	January 19, 2026
Thoughts on a sending init Discussion concurrency	8	344	January 19, 2026
Ternary unwrapping Pitches	9	520	January 19, 2026
The future of serialization & deserialization APIs Discussion foundation , codable , macros	171	18034	January 18, 2026
Pitch: Reparenting Resilient Protocols Pitches	6	436	January 18, 2026
Efficient `Dictionary.mapValues` with key context Pitches	36	1237	January 17, 2026
Proposal: `swift package add-target-plugin` Command to SwiftPM Pitches	2	245	January 17, 2026
[Pre-Pitch] Data-Dependent Test Serialization Pitches concurrency , swift-testing	13	706	January 16, 2026
[Pitch] Add a filePath property to SourceLocation in Swift Testing Pitches api , swift-testing	12	424	January 16, 2026
Allow `@unknown default` on all enum switching to enforce default case handling Pitches	26	872	January 15, 2026
[Pitch] Extensible availability checking Pitches availability	20	1778	January 15, 2026
Avoiding `enum` across `public` API boundaries? Discussion	20	505	January 15, 2026
[Pitch] Safe loading of integer values from `RawSpan` Pitches	43	1100	January 15, 2026