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. 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. Proposal Reviews This category is for posting Swift Evolution proposals for review and feedback.

Topic	Replies	Views	Activity
About the Evolution category Evolution	0	16364	January 18, 2018
SE-0483: `InlineArray` Literal Syntax Proposal Reviews	64	1140	May 5, 2025
[Second review] SE-0472: Starting tasks synchronously from caller context Proposal Reviews concurrency	0	34	May 5, 2025
SE-0482: Binary Static Library Dependencies Proposal Reviews	6	419	May 5, 2025
Replacing the Type Checker Discussion	77	2797	May 5, 2025
SE-0479: Method and Initializer Key Paths Proposal Reviews keypaths	22	1358	May 5, 2025
SE-0474: Yielding Accessors Proposal Reviews	8	813	May 4, 2025
[Pitch] Custom Main and Global Executors Pitches	45	2261	May 4, 2025
SE-0481: `weak let` Proposal Reviews weak	12	1174	May 4, 2025
Future of Codable and JSON-Coders in Swift 6: Hoping for a rework Discussion codable	11	5428	May 3, 2025
SE-0476: Controlling the ABI of a function, initializer, property, or subscript Proposal Reviews abi , library-evolution	12	1359	May 2, 2025
[Accepted with modifications] SE-0476: Controlling the ABI of a function, initializer, property, or subscript Announcements	0	175	May 2, 2025
SE-0478: Default actor isolation typealias Proposal Reviews	29	1037	May 2, 2025
Pitch: Multi-statement if/switch/do expressions Pitches	478	21792	May 2, 2025
[Pitch] Inferring @Sendable for methods and key path literals Pitches	16	2827	May 2, 2025
Opaque Pointers in Swift Discussion	9	7481	May 1, 2025
SE-0471: Improved Custom SerialExecutor isolation checking for Concurrency Runtime Proposal Reviews	22	1038	May 1, 2025
[Pitch] OutputSpan Pitches	43	1215	May 1, 2025
SE-0477: Default Value in String Interpolations Proposal Reviews	30	2163	May 1, 2025
[Accepted with modification] SE-0477: Default Value in String Interpolations Announcements	0	177	May 1, 2025
Add a `clamp` function to Algorithm.swift Discussion	76	9736	May 1, 2025
SE-0475: Transactional Observation of Values Proposal Reviews	30	2058	April 30, 2025
[Pitch] Allow Additional Arguments to @dynamicMemberLookup Subscripts Pitches dynamicmemberlookup	15	579	April 30, 2025
[Pitch] Extensible enums for non-resilient modules Pitches swift	71	2406	April 30, 2025
Guard-Let-Catch (and If-Let-Catch) to avoid long (nested) do-blocks Pitches	28	6487	April 29, 2025
ST-0010: Public API to evaluate ConditionTrait Proposal Reviews swift-evolution , testing , swift-testing , proposal	4	394	April 29, 2025
[Accepted] ST-0010: Public API to evaluate ConditionTrait Announcements swift-testing	0	127	April 29, 2025
[Pitch] Formalize @cdecl Pitches	10	407	April 29, 2025
Shorthand init Discussion	18	2642	April 29, 2025
Macro Adoption Concerns around SwiftSyntax Discussion swift-syntax , macros	105	17707	April 28, 2025