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. 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. 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	16371	January 18, 2018
Merging Closure into Protocols Pitches protocols , capture-list , closure	10	1489	May 18, 2025
SE-0483: `InlineArray` Literal Syntax Proposal Reviews	332	6176	May 18, 2025
SE-0484: Allow Additional Arguments to @dynamicMemberLookup Subscripts Proposal Reviews	6	414	May 18, 2025
[Pitch] Last expression as return value Pitches	452	13777	May 18, 2025
[Accepted] SE-0481: `weak let` Announcements weak	6	910	May 16, 2025
[Pitch] Pack Destructuring & Pack Splitting Pitches	11	995	May 15, 2025
Super call in non override function Discussion	15	338	May 15, 2025
SE-0482: Binary Static Library Dependencies Proposal Reviews	21	1106	May 15, 2025
SE-0475: Transactional Observation of Values Proposal Reviews	62	3544	May 15, 2025
SE-0481: `weak let` Proposal Reviews weak	26	2186	May 14, 2025
[Accepted] SE-0471: Improved Custom SerialExecutor isolation checking for Concurrency Runtime Announcements	0	155	May 14, 2025
[Pitch] Improve `EncodingError` and `DecodingError`'s printed descriptions Pitches codable , error-handling	5	245	May 14, 2025
[Pitch] Amend SE-0466 & SE-0470 to improve isolation inference Pitches	4	518	May 14, 2025
[Pitch] OutputSpan Pitches	48	1737	May 13, 2025
Why did the `InlineArray` type sugar proposal come to review? Discussion	74	2027	May 13, 2025
SE-0478: Default actor isolation typealias Proposal Reviews	32	1448	May 13, 2025
SE-0479: Method and Initializer Key Paths Proposal Reviews keypaths	26	1822	May 13, 2025
SE-0480: Warning Control Settings for SwiftPM Proposal Reviews packagemanager , compiler-warning	6	515	May 12, 2025
Pitch: Resolve Objective-C Forward Declarations to @objc Swift Definitions Pitches interoperability	9	3813	May 11, 2025
[Pitch] Weak let Pitches	26	1966	May 9, 2025
Replacing the Type Checker Discussion	94	4024	May 8, 2025
[Pitch] Test Issue Warnings Pitches api , swift-testing	4	384	May 7, 2025
[Pitch] InlineArray type sugar Pitches	248	5267	May 7, 2025
Import detection for compatibility purposes Discussion import , conditional-compile	3	125	May 7, 2025
SE-0471: Improved Custom SerialExecutor isolation checking for Concurrency Runtime Proposal Reviews	27	1270	May 7, 2025
SE-0273: Package Manager Conditional Target Dependencies Proposal Reviews packagemanager	25	7480	May 7, 2025
[Pitch] Allow Additional Arguments to @dynamicMemberLookup Subscripts Pitches dynamicmemberlookup	16	727	May 6, 2025
SE-0474: Yielding Accessors Proposal Reviews	9	1107	May 6, 2025
KeyPath + String Discussion keypaths	20	1413	May 6, 2025