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	16581	January 18, 2018
~Escapable, Span, Ownership Annotations, etc Discussion	43	2042	February 12, 2026
SE-0511: SwiftPM Add Target Plugin Command Proposal Reviews packagemanager	3	195	February 12, 2026
[AsyncAlgorithms] withDeadline Pitches async-algorithms	21	696	February 12, 2026
Replacing the Type Checker Discussion	164	11930	February 12, 2026
SE-0509: Software Bill of Materials (SBOM) Generation for Swift Package Manager Proposal Reviews packagemanager	6	543	February 12, 2026
Pitch: Non-Public Protocol Requirements Discussion protocols	18	626	February 12, 2026
SE-0505: Delayed Enqueuing for Executors Proposal Reviews	13	722	February 12, 2026
[Returned for Revision] SE-0505: Delayed Enqueuing for Executors Announcements	0	98	February 12, 2026
Where is Swift heading for? Discussion outlandish-phrases	11	392	February 12, 2026
[Pitch] Allow `some P?` and `any P?` (removing the need for parentheses) Pitches	53	641	February 12, 2026
[Accepted] SE-0504: Task Cancellation Shields Announcements concurrency , structured-concurren	10	433	February 12, 2026
Pitch: System in the toolchain Pitches	33	1978	February 12, 2026
[Pitch][SwiftPM] Opt-in exact matching for version tags that include SemVer build metadata Pitches packagemanager	0	67	February 11, 2026
SE-0506 Advanced Observation Tracking Proposal Reviews	15	1047	February 11, 2026
[Accepted] SE-0506 Advanced Observation Tracking Announcements	0	133	February 11, 2026
ST-0019: Include metadata for tags, bugs, and time limit traits in event stream Proposal Reviews swift-testing	3	226	February 11, 2026
[Accepted] ST-0019: Include metadata for tags, bugs, and time limit traits in event stream Announcements	0	51	February 11, 2026
[Pitch] Borrowing Sequence Pitches	18	1505	February 11, 2026
SE-0504: Task Cancellation Shields Proposal Reviews	79	3304	February 10, 2026
ST-0020: Add a filePath property to SourceLocation Proposal Reviews swift-testing	7	354	February 10, 2026
[Accepted] ST-0020: Add a filePath property to SourceLocation Announcements	0	97	February 10, 2026
Yielding accessors and throwing callers Discussion	2	351	February 10, 2026
POL-001: Platform Support Levels Proposal Reviews	58	1269	February 10, 2026
`Borrow` and `Inout` types for safe, first-class references Pitches	50	1804	February 9, 2026
ST-0018: Conditionally saving attachments Proposal Reviews swift-testing	3	295	February 9, 2026
[Returned for revision] ST-0018: Conditionally saving attachments Announcements swift-testing	0	91	February 9, 2026
[Pitch] Software Bill of Materials (SBOM) Generation for Swift Package Manager Pitches packagemanager	15	1415	February 9, 2026
[Pitch] [Embedded] "Unicode" availability domain for APIs requiring the Unicode tables Pitches	17	1220	February 8, 2026
SE-0507: Borrow and Mutate Accessors Proposal Reviews	33	1596	February 7, 2026