# swiftlang/swift-evolution

This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.

Repository: https://github.com/swiftlang/swift-evolution
Canonical: https://ross.abutalabs.com/products/swift-evolution
Homepage: https://www.swift.org/swift-evolution/
Language: Markdown
License: Apache-2.0
License Family: permissive
Last push: 2026-08-26T14:13:38+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 3956, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 15869, forks 2476 (observed 2026-08-28T04:11:14.304840+00:00)

## What it is
The official Swift Evolution repository, which tracks and maintains proposals for changes and enhancements to the Swift programming language, standard library, and package manager. It serves as the canonical record of language design decisions and release history for Swift.

## Use cases
- read swift evolution proposals
- find out what changed in swift 6.2
- understand how a swift language feature was designed
- track upcoming swift language changes
- learn the swift proposal review process
- check which swift version introduced a feature

## When to choose
- you want authoritative, up-to-date documentation of Swift language proposals and release history
- you are researching the rationale behind Swift language design decisions
- you want to follow or contribute to Swift's evolution process

## When to avoid
- you need Swift toolchains, compilers, or runtime binaries rather than proposal documents
- you want tutorials or beginner learning material for writing Swift code
- you need documentation for third-party Swift libraries

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation
- domain: programming-languages, documentation, developer-tools
- platform: cross-platform
- tags: swift, language-evolution, proposals, specification

## Member repositories
- swiftlang/swift-evolution (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:14.304840+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:05:20.771308+00:00, confidence not recorded.
  - readme: https://github.com/swiftlang/swift-evolution (fetched 2026-08-28T04:11:14.304840+00:00, sha 41926970885e)
  - homepage: https://www.swift.org/swift-evolution/ (fetched 2026-08-29T08:03:14.401841+00:00, sha 94d1c5fdee4b)
- Data as of 2026-08-30T08:39:29.467469+00:00.