[React Native] 4.0.0-alpha.3

What's Changed

• Bump React Native native SDK alpha versions by @tiagocandido in #347
• expose fulfilment change in RN by @kiftio in #350
• Add React Native checkout preloading by @tiagocandido in #343
• Bump React Native alpha release to 4.0.0-alpha.2 by @tiagocandido in #353
• Move RN iOS tests into XcodeGen integration app by @kieran-osgood-shopify in #322
• [React Native] Add snapshot dev commands by @markmur in #384
• Add RN sample E2E bootstrap support by @kyle-schellen in #332
• Add native checkout close selector for RN E2E by @kyle-schellen in #333
• Add RN Maestro guest checkout subflows by @kyle-schellen in #334
• Wire RN E2E dev commands by @kyle-schellen in #335
• Normalize RN E2E selector contract by @kyle-schellen in #336

Full Changelog: android/react-native/4.0.0-alpha.1...react-native/4.0.0-alpha.3

[Swift] 4.0.0-alpha.2

What's Changed

• Rewrite Swift Checkout Kit READMEs by @tiagocandido in #184

• Update sample Storefront API version by @tiagocandido in #187

• Clean quicktype model names by @kiftio in #224

• Centralize sample storefront configuration by @kyle-schellen in #175

• Dismiss checkout on receipt of unrecoverable severity error by @kiftio in #153

• Introduce composed client by @kiftio in #247

• Remove legacy checkout-bridge in swift by @kiftio in #251

• fix: evaluateJavascript completionHandler must be used from main thread by @kieran-osgood-shopify in
  #261

• [Swift] Rename MobileBuyIntegration -> CheckoutKitSwiftDemo by @kieran-osgood-shopify in
  #238

• Raise Swift iOS deployment target to 15 by @kieran-osgood-shopify in #271

• UI: @mainactor isolated by @kieran-osgood-shopify in #84

• ShopifyCheckoutKit.Configuration: NSLock guaranteed by @kieran-osgood-shopify in #85

• Logger: NSLock guaranteed by @kieran-osgood-shopify in #86

• Make generated JSON coding key Sendable by @kieran-osgood-shopify in #87

• AC Storefront: GraphQL values Sendable by @kieran-osgood-shopify in #88

• #88 Continuation: Make AcceleratedCheckouts.Configuration Sendable by @kieran-osgood-shopify in
  #274

• Isolate wallet controllers to the main actor by @kieran-osgood-shopify in #89

• Align PassKit protocol abstractions with Swift 6 by @kieran-osgood-shopify in #90

• Fix Swift 6 test target isolation by @kieran-osgood-shopify in #91

• Fix Swift 6 sample concurrency issues by @kieran-osgood-shopify in #99

• Enable swift 6 language mode by @kieran-osgood-shopify in #92

• ignore unknown messages by @kiftio in #287

• Remove private buyerChange event from Swift and Kotlin protocol by @markmur in #295

• Introduce Swift checkout preloading by @tiagocandido in #285

• respond to unknown requests with error by @kiftio in #289

• Use typed Swift JSON-RPC envelopes by @kiftio in #299

• chore(deps): bump concurrent-ruby from 1.3.6 to 1.3.7 in /platforms/swift by @dependabot[bot] in
  #313

• XcodeGen: Generated pbxproject scaffolding by @kieran-osgood-shopify in #308

• Fix V4 Apple Pay button customization API by @kieran-osgood-shopify in #321

• Fix WKNavigationDelegate policy signatures by @kieran-osgood-shopify in #320

• [Swift] Make protocol agnostic to usage by @markmur in #307

• Treat Swift package build warnings as errors by @kieran-osgood-shopify in #323

• [Swift] Expose ec.fulfillment.change in kit by @markmur in #328

• Fix flaky Swift preload expiry test by @tiagocandido in #331

• [Protocol/Swift] Add support for ec_auth / ec_color_scheme by @markmur in #325

• Release Swift 4.0.0-alpha.2 by @tiagocandido in #344

Full Changelog: 4.0.0-alpha.1...4.0.0-alpha.2

[Android] 4.0.0-alpha.2

What changed

• fix version validation by @kiftio in #348
• chore: add warning to all readmes by @kieran-osgood-shopify in #198
• Remove license headers from files by @kiftio in #148
• remove legacy-bridge by @kiftio in #190
• [android][breaking] compile with kotlin 2.x and raise api / language version by @kiftio in #75
• [android][breaking]Target jvm 11 by @kiftio in #79
• catch more specific errors by @kiftio in #189
• Rewrite Android Checkout Kit READMEs by @tiagocandido in #185
• Update sample Storefront API version by @tiagocandido in #187
• drop deprecated android.nonFinalResIds opt-out by @kiftio in #80
• chore(deps): bump androidx.browser:browser from 1.8.0 to 1.10.0 in /platforms/android/samples/MobileBuyIntegration by @dependabot[bot] in #179
• chore(deps): bump gradle-wrapper from 9.5.0 to 9.5.1 in /platforms/android by @dependabot[bot] in #166
• bump serialization version by @kiftio in #207
• chore(deps): bump com.google.devtools.ksp from 2.3.6 to 2.3.8 in /platforms/android/samples/MobileBuyIntegration by @dependabot[bot] in #178
• [sample] apollo 5 with minimal cache fix by @kiftio in #216
• bump mockito kotlin by @kiftio in #222
• [Sample] Add option to open links in CustomChromeTabs by @markmur in #226
• chore(deps): bump org.jetbrains.kotlin.plugin.compose from 2.3.20 to 2.3.21 in /platforms/android/samples/MobileBuyIntegration by @dependabot[bot] in #219
• chore(deps): bump org.jetbrains.kotlin.plugin.serialization from 2.3.20 to 2.3.21 in /platforms/android/samples/MobileBuyIntegration by @dependabot[bot] in #221
• chore(deps): bump com.android.application from 9.1.1 to 9.2.1 in /platforms/android/samples/MobileBuyIntegration by @dependabot[bot] in #144
• chore(deps): bump org.jetbrains.kotlin.android from 2.3.20 to 2.3.21 in /platforms/android/samples/MobileBuyIntegration by @dependabot[bot] in #220
• some android tweaks based on analyze code by @kiftio in #233
• Clean quicktype model names by @kiftio in #224
• Align workspace dev commands in root dev.yml by @kyle-schellen in #69
• Centralize sample storefront configuration by @kyle-schellen in #175
• Add repo setup orchestration commands by @kyle-schellen in #176
• Dismiss checkout on receipt of unrecoverable severity error by @kiftio in #153
• Introduce composed client by @kiftio in #247
• [Android] Rename MobileBuyIntegration -> CheckoutKitAndroidDemo by @kieran-osgood-shopify in #239
• replace ec params with current values by @kiftio in #272
• Introduce Android checkout preloading by @tiagocandido in #286
• ignore unknown messages by @kiftio in #287
• Remove private buyerChange event from Swift and Kotlin protocol by @markmur in #295
• respond to unknown requests with error by @kiftio in #289
• Use typed Android JSON-RPC params by @kiftio in #300
• remove buyer change in web by @kiftio in #290
• [Android] extract checkout protocol module by @kiftio in #315
• [Android] publish packages independently by @kiftio in #329
• [Android] Move url encoding to protocol by @kiftio in #324
• [Android] Add support for ec_auth and ec_color_scheme by @kiftio in #326
• [Android] Expose fulfillmentChange by @kiftio in #340
• release alpha 2 by @kiftio in #345

[Embedded Checkout Protocol] 2026.04.08.1-alpha.1

What's Changed

Publish an initial standalone Kotlin protocol package that conforms to the UCP spec that checkout kit will depend on. PRs:

• chore(protocol): refresh UCP snapshot by @westeezy in #202
• [Android] extract checkout protocol module by @kiftio in #315
• Publish initial embedded checkout protocol packages independently by @kiftio in #329
• [Android] Move url encoding to protocol by @kiftio in #324
• [Android] Add support for ec_auth and ec_color_scheme by @kiftio in #326
• [Android] Expose fulfillmentChange by @kiftio in #340

[React Native] 4.0.0-alpha.1

What's Changed

Experimental alpha release

Full Changelog: 4.0.0-alpha.1...react-native/4.0.0-alpha.1

[Swift] 4.0.0-alpha.1

What's Changed

Experimental alpha release

New Contributors

• @kiftio made their first contribution in #9
• @Juanita-Dash made their first contribution in #22
• @tiagocandido made their first contribution in #10
• @dependabot[bot] made their first contribution in #11
• @markmur made their first contribution in #24
• @kieran-osgood-shopify made their first contribution in #33
• @kyle-schellen made their first contribution in #35
• @github-actions[bot] made their first contribution in #37
• @arpitjain099 made their first contribution in #104
• @westeezy made their first contribution in #93
• @toneymathews made their first contribution in #117
• @kev-mao made their first contribution in #120
• @michaeljsXu made their first contribution in #141

Full Changelog: https://github.com/Shopify/checkout-kit/commits/4.0.0-alpha.1

[Android] 4.0.0-alpha.1

What's Changed

Experimental alpha release

New Contributors

• @kiftio made their first contribution in #9
• @Juanita-Dash made their first contribution in #22
• @tiagocandido made their first contribution in #10
• @dependabot[bot] made their first contribution in #11
• @markmur made their first contribution in #24
• @kieran-osgood-shopify made their first contribution in #33
• @kyle-schellen made their first contribution in #35
• @github-actions[bot] made their first contribution in #37
• @arpitjain099 made their first contribution in #104
• @westeezy made their first contribution in #93
• @toneymathews made their first contribution in #117
• @kev-mao made their first contribution in #120
• @michaeljsXu made their first contribution in #141

Full Changelog: https://github.com/Shopify/checkout-kit/commits/android/4.0.0-alpha.1