Swift

C / functional · 2014Actively developed

Typed native application development with a strong Apple-platform ecosystem.

Procedural · Functional · Object-oriented

Tracked release

Version: 6.3
Artifact: Language / compiler feature release
Published: 2026-03-24
Source checked: 2026-10-22

https://www.swift.org/blog/swift-6.3-released/

Use & ecosystem

Suited for: Web backends, Desktop applications, Mobile applications
Family / tradition: C-style, Functional / ML / lazy
Maturity: Established
Ecosystem breadth: Focused

Sustained commercial application use and stable toolchains support Established. The strongest library and framework coverage remains concentrated around Apple applications.

Industry & practical use

iOS and macOS applications are central uses. Server-side development is supported, but should not be mistaken for the same depth of adoption and libraries as Apple-platform work.

Compilers, libraries & tooling

The compiler, Swift Package Manager and editor tools support native development. SwiftUI and other Apple frameworks are platform-specific; Linux and Windows have different library availability.

Platforms & deployment

General toolchains: Linux, Windows, macOS, iOS
Specialized tooling: Android
Native cross-compilation: Restricted / involved

Apple platforms have the deepest application integration. Linux and Windows support native development; other targets require separate SDK and ecosystem checks.

Cross-builds depend on supported Swift SDKs and host–target combinations. Apple-platform workflows require Apple SDKs and tooling.

Project health & support

Apple and open-source contributors maintain Swift under published project governance. Platform SDK policies and language evolution remain separate compatibility considerations.

Use, ecosystem & platform assessment reviewed 2026-10-22 · Sources below

History & origin

Apple introduced Swift in 2014 after development led by Chris Lattner. It became open source in 2015, extending beyond Apple platforms while retaining close integration with their application frameworks.

Creators: Chris Lattner, Apple
Origin: 2014 — Public introduction at Apple WWDC.

Influences & descendants

Influenced by

Not yet documented in this catalogue.

Influenced in this catalogue

No linked entries yet.

Language features

Typing: Static
Execution: AOT
Block structure: Explicit delimiters
Semicolons: Optional
Lexical closures: Yes
Namespaced modules: Yes
Pattern matching: Yes
Macro system: Syntactic macros

Implementation notes

Modern Swift has syntactic macros. Migrating to a new language mode can involve changes without making the existing stable language pre-1.0.

Sources & references

Project overview: https://www.swift.org/
Language / implementation reference: https://www.swift.org/documentation/

Use, ecosystem & platform sources

Project overview: https://www.swift.org/
Language / implementation reference: https://www.swift.org/documentation/

See the classification definitions for implementation-dependent features. Influence links cover the entries documented here.

Links