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
Swift Concurrency Roadmap Discussion concurrency	169	87198	June 7, 2021
Improving the UI of generics Discussion	179	60008	February 22, 2022
A New Approach to Testing in Swift Discussion testing , xctest , unit-testing , swift-testing	118	38163	October 24, 2024
Embedded Swift Pitches embedded , runtime , pitch , metadata	203	31768	August 17, 2024
A roadmap for improving Swift performance predictability: ARC improvements and ownership control Pitches	268	54873	August 20, 2024
The state of Swift documentation Discussion	46	11217	September 1, 2020
Declarative String Processing Overview Pitches	120	18967	October 19, 2021
[Pitch] if and switch expressions Pitches	94	11703	December 7, 2022
Swift type checking is undecidable Discussion	44	31454	November 9, 2020
[Pitch] Introduce existential `any` Pitches	203	15080	December 9, 2021
Pitch: an Official Style Guide and Formatter for Swift Pitches	253	28903	March 19, 2019
[Pitch] Default values for string interpolations Pitches	57	4157	January 23, 2024
Lifting the "Self or associated type" constraint on existentials Pitches	163	22322	April 23, 2021
[Meta] Name deprecation notice Discussion	9	3478	February 3, 2021
A Possible Vision for Macros in Swift Pitches	136	33972	June 20, 2023
Modify Accessors Pitches	306	32528	August 20, 2024
Key Path Expressions as Functions Pitches	52	14007	May 7, 2019
Macro Adoption Concerns around SwiftSyntax Discussion swift-syntax , macros	104	17136	August 25, 2024
SwiftPM support for Swift scripts Pitches packagemanager	86	16384	May 27, 2021
[Pitch] Reflection Pitches reflection	60	14521	June 10, 2024
Precise error typing in Swift Discussion error-handling	89	12380	September 20, 2023
[Pitch] Observation Pitches	111	19228	March 17, 2023
Serialization in Swift Discussion	169	24083	February 1, 2024
Pitch: Standard Library Preview Package Pitches	44	7588	July 27, 2019
Swift Package Registry Service Pitches packagemanager	93	28666	December 22, 2022
[Accepted with Modification] SE-0296: async/await Announcements	32	21311	April 10, 2021
Pitching The Start of Variadic Generics Pitches generics	72	11709	December 4, 2021
Integer generic parameters Pitches	130	5774	October 15, 2024
[Accepted with modification] SE-0258: Property Wrappers Announcements	13	5328	February 24, 2021
[Pitch] Clock, Instant, Date, and Duration Pitches concurrency , stdlib , time	317	20837	December 13, 2021
An Informal Introduction to Move-Only Types Discussion	27	9453	November 14, 2022
Function builders implementation progress Discussion	24	11465	June 24, 2020
Vector, a fixed-size array Pitches array	270	11642	November 19, 2024
Support use of an optional label for the first trailing closure Pitches	122	11461	March 16, 2021
Piecemeal adoption of Swift 6 improvements in Swift 5.x Pitches	49	9410	June 22, 2022
Proposal draft for `is case` (pattern-match boolean expressions) Pitches	57	7593	February 15, 2023
Let's fix `if let` syntax Pitches	221	17416	July 28, 2021
Design Priorities for the Swift 6 Language Mode Announcements	79	20289	October 11, 2023
`if let` shorthand Pitches	269	33802	April 9, 2022
[Pre-Pitch] Import access control: a modest proposal Pitches	65	10508	April 3, 2022
Variadic Generics Pitches generics	99	13343	July 29, 2022
Progress toward the Swift 6 language mode Announcements	32	19014	February 15, 2024
Differentiable Programming Mega-Proposal Pitches autodiff	151	43083	July 26, 2020
Noncopyable Generics in Swift: A Code Walkthrough Discussion generics , swift-evolution , noncopyable , tutorial	47	5273	March 25, 2024
[Pitch] Extensions on bound generic types Pitches	40	4943	June 22, 2022
Swift Concurrency: Feedback Wanted! Discussion	161	27580	July 14, 2022
Require parameter names when referencing to functions Pitches collection	93	9437	October 5, 2020
[Pitch] Enable multi-statement closure parameter/result type inference Pitches	45	5801	October 10, 2021
Concurrency in Swift 5 and 6 Discussion	11	21319	August 19, 2023
Differentiable programming for gradient-based machine learning Pitches numerics , autodiff , machine-learning	141	34258	June 2, 2022