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	16397	January 18, 2018
[Accepted] SE-0475: Transactional Observation of Values Announcements	1	307	June 15, 2025
[Second review] SE-0483: `InlineArray` Type Sugar Proposal Reviews	65	2492	June 14, 2025
[Accepted] SE-0466: Control default actor isolation inference Announcements	1	364	June 14, 2025
[Pitch] Limited Parallelism TaskGroup Pitches concurrency , task , structured-concurren , asyncsequence , taskgroup	30	601	June 13, 2025
[Pitch #2] Lifetime dependencies for non-`Escapable` values Pitches	34	1579	June 13, 2025
[Pitch] Non-Escapable Types and Lifetime Dependency Pitches	144	14638	June 13, 2025
[Pitch] Custom Main and Global Executors Pitches	48	2634	June 13, 2025
Context-Aware Scoped Extensions Discussion extension , scope	0	149	June 13, 2025
Macros that take patterns Discussion macros	12	372	June 13, 2025
SE-0485: OutputSpan: delegate initialization of contiguous memory Proposal Reviews	14	1035	June 12, 2025
[Accepted with modifications] SE-0485: OutputSpan: delegate initialization of contiguous memory Announcements	0	174	June 12, 2025
"Removing implicit `nil` initial value for Optional-typed variables" Discussion optional , properties , swift6 , nil	28	3691	June 12, 2025
Replacing the Type Checker Discussion	132	6989	June 11, 2025
SE-0475: Transactional Observation of Values Proposal Reviews	72	4848	June 11, 2025
zip3, zip4, ... Discussion	9	2215	June 11, 2025
[Pitch] Structured Task Cancellation Tokens Pitches concurrency , structured-concurren , task-local	12	803	June 11, 2025
Add #self, #Self to #function, #file, #line, #column Pitches	26	11616	June 10, 2025
#Playground macro and "swift play" idea for code exploration in Swift Discussion playground	6	1989	June 10, 2025
SE-0486: Migration tooling for Swift features Proposal Reviews	6	802	June 10, 2025
[Pitch] Guard that works with 'try' Pitches	3	343	June 8, 2025
Swift Evolution proposal acceptance should require that the The Swift Language Book be updated Discussion	46	1439	June 8, 2025
[Pitch 2] Default actor isolation per-file Pitches	39	1427	June 7, 2025
"Macro expansion cannot introduce extension"? Discussion macros	15	4468	June 7, 2025
SE-0483: `InlineArray` Literal Syntax Proposal Reviews	348	7979	June 7, 2025
[Pitch] Value Pack Transforms Pitches	7	466	June 6, 2025
[Accepted] Vision: A Vision for WebAssembly Support in Swift Announcements	0	632	June 6, 2025
Native Optional Methods in Swift Protocols Discussion	36	1486	June 6, 2025
SE-0480: Warning Control Settings for SwiftPM Proposal Reviews packagemanager , compiler-warning	15	1045	June 6, 2025
[Accepted] SE-0480: Warning control settings for SwiftPM Announcements packagemanager , compiler-warning	0	239	June 6, 2025