Decision Record - Drop SPM support for Xcode versions lower than 12

[calvincestari]

Status

• Proposed - Oct 12, 2021
• Accepted - Oct 14, 2021

Summary

In an April 2021 App Store submission update, Apple required App Store submissions to be built with Xcode 12.

The Package.swift file declares that the minimum version of the Swift tools and Swift language compatibility to process the SPM manifest is Swift 5.3. Swift 5.3 was released with Xcode 12.

We currently also maintain a [email protected] manifest which declares that the minimum Swift version required is 5.2. Swift 5.2 was released with Xcode 11.4.

Proposal

Delete the [email protected] file to require Xcode version 12 or greater for SPM support.

Consequences

Developers using a version of Xcode prior to 12 will not be able to use Swift Package Manager as the dependency manager for Apollo iOS. This is a moot point because since April 26th, 2021, Apple does not accept submissions from any version of Xcode lower than 12.

[calvincestari]

This might be a premature decision given that I can't find any definitive Xcode version requirements for submitting a Mac app to the App Store. 😕

[designatednerd]

I'm fine with going ahead and dropping this - the vast majority of people who are using this at least have an iOS component, and by this point most folks will have updated to beyond 5.2.