Swift Language revision history list?

bproelofs · June 4, 2025, 8:26pm

Is there a page showing the revision history of Swift? What's in 6.1, 6.0, 5.10......
I can't seem to find it. There is a website swiftversion.net that tries to do this but I was wondering if there is a single list of changes in swift.org.

Joe_Groff · June 4, 2025, 8:52pm

You might start by looking at the CHANGELOG.md in the Swift sources:

github.com/swiftlang/swift

CHANGELOG.md

main

# CHANGELOG

> [!NOTE]
> This is in reverse chronological order, so newer entries are added to the top.

## Swift 6.2

* The Swift compiler no longer diagnoses references to declarations that are
  potentially unavailable because the platform version might not be new enough
  when those references occur inside of contexts that are also unavailable to
  that platform. This addresses a long-standing nuisance for multi-platform
  code. However, there is also a chance that existing source code may become
  ambiguous as a result:

  ```swift
  struct A {}
  struct B {}

  func potentiallyAmbiguous(_: A) {}

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Slava_Pestov · June 5, 2025, 1:27am

And for the history of the generics features specifically, see the index entry for “Swift” in the back of https://download.swift.org/docs/assets/generics.pdf