# SKAdNetwork 3 release notes A version of SKAdNetwork available in iOS 14.6 and later. ## Discussion Use `“3.0”` as the version number when signing ads for this version. You’re eligible to receive a version 3.0 postback if all three of the following conditions are met: - The source app generates a signature for version 3.0. - The source app is built with iOS 14.6 SDK or later. - The advertised app is App Store-signed and is running on a device with iOS 14.6 or later. ### New features New features include: - Devices can now send install-validation postbacks to multiple ad networks that sign their ads using version 3.0. One ad network receives a postback with a `did-win` parameter value of `true` for the ad impression that wins the ad attribution. Up to five other ad networks receive a postback with a `did-win` parameter value of `false` if their ad impressions qualified for, but didn’t win, the attribution. For more information about signing ads with version 3.0, see [Signing and providing ads](/documentation/StoreKit/signing-and-providing-ads). For more information about your ad’s eligibility to receive an attribution or a non-winning postback, see [Receiving ad attributions and postbacks](/documentation/StoreKit/receiving-ad-attributions-and-postbacks). For details about the postback, see [Verifying an install-validation postback](/documentation/StoreKit/verifying-an-install-validation-postback). --- 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)