Release Swift 4.0.0-alpha.5

[tiagocandido]

What changes are you making?

Release the Swift packages as 4.0.0-alpha.5.

This updates the SwiftPM and CocoaPods version metadata, public installation examples, and user-agent expectations. The release includes the Swift changes merged since 4.0.0-alpha.4, including the removal of the onMessageRejected configuration callback in favor of warn-level rejection logging (#646).

How to test

.github/scripts/validate-release-version iOS 4.0.0-alpha.5
cd platforms/swift
./Scripts/xcode_run test ShopifyCheckoutKit-Package UserAgentTests
./Scripts/api check

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Before you merge

• I've updated tests for the new version
• I have read and agree with the Contribution Guidelines
• I have read and agree with the Code of Conduct
• I've updated platforms/swift/README.md
• I have bumped the version in ShopifyCheckoutKit.podspec
• I have bumped the version in platforms/swift/Sources/ShopifyCheckoutKit/ShopifyCheckoutKit.swift
• I have updated the SwiftPM and CocoaPods version snippets

[tiagocandido]

• Release Android 4.0.0-alpha.5 #652
• Release Swift 4.0.0-alpha.5 #651 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[bitrise]

Install this build

Open Tophat, select your target device, then click Install. Links open on the Mac running Tophat.

SDK	Install
Swift	Install with Tophat

Checkout Kit E2E results

Status	Suite	Target	Platform	OS version tag	Device
✅	swift-ios	swift	ios	latest	iPhone 15 iOS 27 Beta

[tiagocandido]

Merge activity

• Aug 17, 9:08 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Aug 17, 9:08 AM UTC: @tiagocandido merged this pull request with Graphite.