SE-0264 (review #2) — Standard Library Preview Package

Evolution Proposal Reviews
16

Proposal Accepted

The proposal has been accepted. The Core Team strongly believes that vending upcoming changes to the Standard Library via "preview packages" distributed using the Swift Package Manager could be a powerful vehicle to get additional signal on the quality of proposed changes to the Standard Library.

The Core Team was satisfied with the dual model of having an umbrella package that users can use to install all available APIs available as preview package, as well as individual packages that correspond to specific evolution proposals.

Each preview package will be housed in a separate repository in the apple organization on GitHub, sitting as peers to the other repositories part of the Swift project.

Here is the module name and repository mapping that the Core Team settled on:

Module Name Repository
StandardLibraryPreview swift-standard-library-preview
SE<number>_<shortname> swift-se<number>-<shortname>

Where <number> would be the 4-digit SE number, starting with 0 for proposals less than 1000, and <shortname> would be something short like "RangeSet" that is a pithy highlight of what that package covers.

Some examples

Module names

import StandardLibraryPreview
import SE0270_RangeSet
import SE0261_Identifiable
import SE0251_SIMD
import SE0235_Result

Repository names

  • swift-standard-library-preview
  • swift-se0270-rangeset
  • swift-se0261-identifiable
  • swift-se0251-simd
  • swift-se0235-result

Next steps

Thank you to everyone who participated in this review. The next steps are to create the initial repositories for the preview packages, as well as update Swift.org with information about the preview packages and their use. An announcement will be made when these changes have been made and the preview packages are available.

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