in_app_purchase_storekit

• Fixes StoreKit 2 date format does not match in_app_purchase_platform_interface PurchaseDetails.transactionDate format. Fixes both SK2Transaction.purchaseDate and SK2Transaction.expirationDate.

[in_app_purchase_storekit] Group purchases into a single event in sto…

• Fixes StoreKit 2 restore transactions not grouping purchases into a single event.

• Clarifies completePurchase usage and the consequences of unfinished transactions in the README and API docstrings.
• Prevents duplicate purchase attempts in StoreKit 2 by throwing a storekit_duplicate_product_object error when a product already has an unfinished transaction.

• Fixes SK2Transaction to expose the real purchased quantity instead of defaulting to 1.

• Add support for offer codes in StoreKit 2.
• Updates minimum supported SDK version to Flutter 3.38.

• Fixes an issue causing StoreKit2 purchases to be reported as restored and left in an unfinished state, due to pendingCompletePurchase being false.
• Fixes Xcode 26.2 analyzer warnings in example app tests.

• Fixes StoreKit 2 purchase flow to send cancelled/pending/unverified results to purchaseStream.

• Adds SK2Transaction.unfinishedTransactions() method to query only unfinished transactions.
• Exposes appAccountToken property in SK2PurchaseDetails for user identification.

• Adds a new case .unverified to enum SK2ProductPurchaseResult
• Fixes the StoreKit2 implementation throwing PlatformExceptions instead of returning the corresponding SK2ProductPurchaseResult when a purchase is cancelled / unverified / pending.

• Refactors internals for improved testability.

• Updates to Pigeon 26.

• Makes SKError.userInfo key non-nullable to comply with json serialization requirements.

• Added support for specifying quantity in SK2ProductPurchaseOptions (consumable purchases on iOS).

• Removes code for versions of iOS older than 13.0.
• Updates minimum supported SDK version to Flutter 3.35.

• Adds Introductory Offer Eligibility support for StoreKit2

• Add jwsRepresentation to SK2PurchaseDetails as serverVerificationData for secure server-side purchase verification. Use this JSON Web Signature (JWS) value to perform your own JWS verification on your server.
• Add jsonRepresentation to SK2PurchaseDetails as localVerificationData for local transaction debugging and verification.

• Updates minimum supported SDK version to Flutter 3.27/Dart 3.6.
• Adds Win Back Offers support for StoreKit2:
  • Includes new isWinBackOfferEligible function for eligibility verification
• Adds Promotional Offers support in StoreKit2 purchases
• Fixes introductory pricing handling in promotional offers list in StoreKit2
• Ensures proper appAccountToken handling for StoreKit2 purchases

• BREAKING CHANGE: StoreKit 2 is now the default for all devices that support it.
• To revert to StoreKit1 for devices below iOS 15, call enableStoreKit1

• Adds sync() and countryCode().

• Fix a channel thread-safety issue when StoreKit2 is enabled.

• Adds Swift Package Manager compatibility.

• Fixes manual invocation of finishTransaction causing a fatal crash.

• Prevent devices below iOS 15 or macOS 15 from enabling StoreKit2.

• Fixes price not being displayed correctly.

• Fixes finishTransaction not completing.
• Updates minimum supported SDK version to Flutter 3.22/Dart 3.4.

• Exposes jsonRepresentation field for transactions.

• Adds StoreKit2 Transaction expiration date.

• Removes unneeded platform availability annotations.

• Adds support for StoreKit2's canMakePayments and products

• Adds support for StoreKit2's purchase and transactions

• Updates Pigeon for non-nullable collection type support.

• Adds StoreKit 2 support for restoring purchases.

• Updates README to remove contributor-focused documentation.

• Removes OCMock from tests.

• Converts main plugin tests to swift.

• Converts FIAPPaymentQueueDeleteTests to swift.

• Converts TranslatorTests to swift.

• Converts main plugin class to Swift.

• Replaces getCountryCode with countryCode.

• Adds countryCode API.

• Added new native tests for more complete test coverage.

• Handle translation of errors nested in dictionaries.

• Converts refreshReceipt(), startObservingPaymentQueue(), stopObservingPaymentQueue(), registerPaymentQueueDelegate(), removePaymentQueueDelegate(), showPriceConsentIfNeeded() to pigeon.

• Fixes type of error code returned from native code in SKReceiptManager.retrieveReceiptData.

• Fixes SKError.userInfo not being nullable.

• Converts startProductRequest(), finishTransaction(), restoreTransactions(), presentCodeRedemptionSheet() to pigeon.

• Converts storefront(), transactions(), addPayment(), canMakePayment to pigeon.
• Updates minimum iOS version to 12.0 and minimum Flutter version to 3.16.6.

• Updates minimum supported SDK version to Flutter 3.10/Dart 3.0.
• Fixes new lint warnings.

• Adds privacy manifest.

• Adds Future<SKStorefrontWrapper?> storefront() in SKPaymentQueueWrapper class.

• Updates minimum Flutter version to 3.3 and iOS 11.

• Updates links for the merge of flutter/plugins into flutter/packages.

• Clarifies explanation of endorsement in README.
• Aligns Dart and Flutter SDK constraints.

• Adds a null check, to prevent a new diagnostic.

• Removes obsolete null checks on non-nullable values.
• Updates minimum supported SDK version to Flutter 3.3/Dart 2.18.

• Migrates styleFrom usage in examples off of deprecated primary and onPrimary parameters.

• Adds pub topics to package metadata.
• Updates minimum supported SDK version to Flutter 3.7/Dart 2.19.

• Updates example code for current versions of Flutter.

• Uses the new sharedDarwinSource flag when available.

• Fixes a crash when appStoreReceiptURL is nil.