# App Store Connect API 4.3 release notes Update your server-side code to use new features, and test your code against API changes. ## Discussion App Store Connect API version 4.3 provides resources that enable you to automate actions you take in App Store Connect. ### New Features - To get the size usage of a background asset, reference the `usedBytes` attribute on [`BackgroundAsset.Attributes`](/documentation/AppStoreConnectAPI/BackgroundAsset/Attributes-data.dictionary). - To specify the initial `gameCenterChallengeVersion` when creating a challenge, call [`Create a Challenge`](/documentation/AppStoreConnectAPI/POST-v1-gameCenterChallenges) using [`GameCenterChallengeVersionInlineCreate`](/documentation/AppStoreConnectAPI/GameCenterChallengeVersionInlineCreate). - To specify the initial `gameCenterActivityVersion` when creating an activity, call [`Create an Activity`](/documentation/AppStoreConnectAPI/POST-v1-gameCenterActivities) using [`GameCenterActivityVersionInlineCreate`](/documentation/AppStoreConnectAPI/GameCenterActivityVersionInlineCreate). You can also specify a `fallbackUrl` for the initial activity version during the operation. - Use the `preReleased` attribute with [`Add a Player's Score`](/documentation/AppStoreConnectAPI/POST-v1-gameCenterPlayerAchievementSubmissions) and [`Add a Score to a Leaderbaord`](/documentation/AppStoreConnectAPI/POST-v1-gameCenterLeaderboardEntrySubmissions) to indicate whether the requested change applies to the game’s release version or its prerelease version. ### Deprecations - The user role permission `ACCESS_TO_REPORTS` for App Store Connect API is deprecated. See [`UserRole`](/documentation/AppStoreConnectAPI/UserRole) for available alternatives. ### Removals - Removed the endpoints `GET /v1/appStoreVersions/{id}/relationships/ageRatingDeclaration` and `GET /v1/appStoreVersions/{id}/ageRatingDeclaration`. Use [`Read the age-rating declaration`](/documentation/AppStoreConnectAPI/GET-v1-appInfos-_id_-ageRatingDeclaration) instead. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)