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

Topic	Replies	Views	Activity
About the Evolution category Evolution	0	16332	January 18, 2018
[Pre-pitch] Closure body macros Pitches macro	5	331	March 15, 2025
SE-0469: Task Naming Proposal Reviews concurrency , task	24	725	March 15, 2025
[Pitch] Isolated conformances Pitches	41	2683	March 15, 2025
SE-0466: Control default actor isolation inference Proposal Reviews	26	1444	March 15, 2025
[Pitch #3] Swift Compile-Time Values Pitches	27	2405	March 15, 2025
[Pitch] Transactional observation of values Pitches concurrency , asyncsequence , observation	40	2852	March 13, 2025
SE-0467: MutableSpan Proposal Reviews	6	444	March 14, 2025
Weak captures in sendable/sending closures Discussion concurrency , closure , weak	13	216	March 14, 2025
Update SwiftPM to support custom configuration names Pitches	17	7739	March 13, 2025
[Pitch] Task Naming API Pitches	13	883	March 13, 2025
[Pitch 2] Custom Main and Global Executors Pitches	26	530	March 13, 2025
SE-0468: Hashable conformance for Async(Throwing)Stream.Continuation Proposal Reviews	2	171	March 13, 2025
[Accepted] SE-0463: Import Objective-C completion handler parameters as `@Sendable` Announcements	0	230	March 13, 2025
[Accepted with modifications] SE-0462: Task Priority Escalation APIs Announcements	1	464	March 13, 2025
[Pitch] Inferring @Sendable for methods and key path literals Pitches	11	2611	March 13, 2025
[pitch] Add `Span`-providing Properties to Standard Library Types Pitches	41	1816	March 12, 2025
SE-0464: UTF8Span: Safe UTF-8 Processing Over Contiguous Bytes Proposal Reviews	34	857	March 12, 2025
Cross-Import Overlay status? Discussion	9	933	March 12, 2025
Pitch: Replacement for FileHandle Pitches	21	3517	March 12, 2025
On the behavior of variables in top-level code Discussion	14	3826	March 12, 2025
SE-0461: Run nonisolated async functions on the caller's actor by default Proposal Reviews	59	3502	March 12, 2025
[Pitch] Extensible enums for non-resilient modules Pitches swift	65	1822	March 11, 2025
[Pitch] Update SE-0419 with ImageMap type Pitches	0	158	March 11, 2025
[Pitch] Introducing `valuealias` for Inline Value Substitutions Pitches	3	246	March 11, 2025
[Prepitch]: Scoped, Fixed Width Concurrency Executors Pitches concurrency	14	813	March 10, 2025
SE-0465: Standard Library Primitives for Nonescapable Types Proposal Reviews	5	480	March 10, 2025
[PITCH] io_uring support in Swift System on Linux Pitches linux , server , io , swift-system	24	1321	March 10, 2025
Accessing sendable parts of non-sendable tuples within deinit Discussion concurrency , deinit	1	122	March 10, 2025
[Pitch] Method Key Paths Pitches keypaths , keypath	28	1587	March 10, 2025