Ignore duplicate Swift checkout presentations

[markmur]

Repeated Swift present() calls can stack checkout controllers or attempt another presentation during dismissal. Return the existing checkout in the presenter’s modal hierarchy, preserving its original URL and delegate.

Both the public and accelerated-checkout entry points use the guard; independent presentation hierarchies remain independent.

Stack

• React Native: add explicit checkout link handling #921
• React Native: adopt native checkout lifecycle events #829
• React Native: isolate presentation subscription cleanup #920
• Protocol: decode checkout snapshots without protocol metadata #919
• Bump Swift to 4.0.0-alpha.8 #946
• Ignore duplicate Swift checkout presentations #942

[github-actions]

Bundle Size Budgets

Budget	Size	Limits	Result
—	—	—	➖ No configured budgets affected

Bundle and package size

Web bundle sizes cover shipped runtime JavaScript. Package sizes cover the full published archive, including any source maps, declarations, and documentation it contains.

Platform	Measurement	Compression	Base	Head	Delta
-	-	-	-	-	-

How sizes are measured

Measured from the PR base SHA and PR head SHA. Web bundle rows sum shipped .js, .mjs, and .cjs files under dist/, excluding source maps and declarations. The gzip bundle size sums files compressed individually with gzip -n -9. npm package sizes are gzip-compressed .tgz archives; Android AAR sizes are ZIP archives. Package sizes are not final app binary sizes.

[bitrise]

Bitrise builds

E2E · iOS CI

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	Tags	Target	Platform	OS version tag	Device
✅	launch, checkout-presentation, checkout-completion, buyer-identity, preload	swift	ios	latest	iPhone 15 iOS 27 Beta