> ## Documentation Index
> Fetch the complete documentation index at: https://help.airbridge.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Release Note - iOS SDK
2026
v4.11.0 - Aug 3, 2026
**ADDED**
* Added support for the server-managed event block list.
* Added device UUID update timestamp to event payload.
**FIXED**
* Fixed event API version.
v4.10.1 - Jul 16, 2026
**FIXED**
* Improved reliability when updating user properties.
v4.10.0 - Jun 4, 2026
**ADDED**
* Added \`handleDeferredDeeplink(apps, onSuccess, onFailure)\` overload for multi-app deferred deeplink resolution. When multiple \`AirbridgeInterface\` instances share a single app, this function waits for all instances to collect their deferred deeplinks and delivers only the last-clicked deeplink to the appropriate instance.
**FIXED**
* Improved lifecycle event collection.
* Improved deeplink handling to exclude non-trackable deeplinks from Expo development client.
v4.9.4 - Apr 27, 2026
**CHANGED**
* Enhanced the reliability of the SDK initialization logic.
v4.9.3 - Apr 2, 2026
**FIXED**
* Improved URL handling in `handleDeeplink` functions.
* Improved URL handling in `click` and `impression` functions.
v4.9.1 - Mar 5, 2026
**ADDED**
* Added event timestamp to event payload.
* Added IPv6 information to event payload.
v4.9.0 - Jan 16, 2026
**Added**
* Support for multiple concurrent Airbridge SDK instances via `AirbridgeInterface` inheritance
* Added `allowTrackingItem` and `blockTrackingItem` functions to support granular tracking control.
* Added support for using `AirbridgeTrackingBlocklist` to disable SKAdNetwork data collection.
2025
v4.8.1 - Sep 26, 2025
**FIXED**
* Fixed an issue where SKAdNetworkOption was not accessible in the Objective-C environment.
v4.8.0 - Sep 19, 2025
**ENHANCED**
* The logic for acquiring deferred deeplinks has been optimized for better reliability and performance.
**CHANGED**
* Added a method for handling deep links in the SceneDelegate.
v4.7.1 - Aug 27, 2025
**FIXED**
* Fix an issue where the internal property could be empty when sending in‑app events.
v4.7.0 - Jul 8, 2025
**NOTICE**
* If version 4.7.0 is unavailable when installing via Pods, refer to the relevant information in [Trouble shooting guide](/ko/developers/troubleshooting-ios-sdk-v4#cocoapods이-4-7-0-버전을-찾지-못하는-문제).
**ADDED**
* `setTrackingBlocklist` option that blocks specific tracking.
v4.6.0 - Jun 27, 2025
**CHANGED**
* In-app purchase measurement is now officially supported. The in-app purchase measurement feature will no longer be supported in earlier versions.
v1.41.0 - Jun 27, 2025
**CHANGED**
* In-app purchase measurement is now officially supported. The in-app purchase measurement feature will no longer be supported in earlier versions.
v4.5.0 - Jun 4, 2025
**FIXED**
* Solve issue that install event may lose on swiftui lifecycle.
* Solve issue that dSYMs is not packaged.
* Updated the message for when SKAdNetwork is not configured.
**FIXED**
* Fix build failure on Xcode 16.2
* Provide an interface to automatically collect in-app purchase events.
* Provide functionality to track Google On-Device Measurement conversion values.
* Provide dSYM (debug symbol) support for the framework.
* Provide an interface to automatically collect DMA consent data.
**CHANGED**
* Build SDK as dynamic framework
**FIXED**
* Solve issue that App containing SDK can not be uploaded to App Store Connect using Xcode 15.3
v1.36.2 - Apr 1, 2024
**CHANGED**
* Build SDK on Xcode 15.3
v1.36.1 - Mar 11, 2024
**FIXED**
* Solve issue that SDK can not be used on Xcode 15.3
v1.36.0 - Feb 27, 2024
**ADDED**
* Solve issue that airbridge\_deeplink is delivered with double-percent-decoding
2023
v1.35.0 - Nov 30, 2023
**ADDED**
* Added fetchAirbridgeGeneratedUUID to the SDK interface. the UUID satisfies UUID4 format
v1.34.10 - Nov 28, 2023
**ADDED**
* The SDK has been added to reference AnouncyID in the Facebook SDK
**REMOVED**
* The SDK does not use iAd.framework anymore.
v1.34.9 - Oct 31, 2023
**ADDED**
* Solve issue that ABUser's copy method may crash App in edge case
v1.34.1 - Oct 4, 2023
**FIXED**
* Added a null-safety check when calling the notification deeplink.
* Improved logic for getting attribution from Airbridge Server.
v1.34.0 - Jul 17, 2023
**ADDED**
* Handle airbridge\_deeplink query item from deeplink
### 1.33.4 - Jul 06, 2023
**ADDED**
* Now supports older versions of FBSDKCoreKit. (>= 9.2.0)
### 1.33.2 - Jun 22, 2023
**FIXED**
* Updated \`ABUser\`'s copy behavior to be \`atomic\`
### 1.33.1 - Jun 15, 2023
**FIXED**
* Improve the stability of SKAdNetwork.
### 1.33.0 - Jun 8, 2023
**ADDED**
* Support SKAdNetwork 4.0
### 1.32.2 - May 31, 2023
* Add \`abr.ge\` tracking link support.
### 1.32.1 - May 24, 2023
**CHANGED**
* Default value of `trackingAuthorizeTimeout`is changed to 30 seconds.
### 1.32.0 - Apr 26, 2023
**ADDED**
* Add SDK Signature feature that protect Airbridge SDK from SDK spoofing.
**FIXED**
* Resolve the issue that a foreground event occasionally occurs before the install event.
### 1.30.0 - Mar 20, 2023
**ADDED**
* We have added new interface support that allows you to remove alias and attribute properties for user state.
### 1.29.3 - Mar 16, 2023
**FIXED**
* Solve issue that deeplink event can be lost when open app with deeplink when app is closed not on background with using uninstall tracking.
### 1.29.2 - Feb 22, 2023
**FIXED**
* Fix open events that may be missing when a opened application.
* Open events can be lost when using Uninstall Tracking. This is not a problem for Deeplink Open.
### 1.29.1 - Feb 20, 2023
**FIXED**
* Solve issue that `appname.deeplink.page`tracking link is not providing deeplink properly when user do not use custom domain feature.
### 1.29.0 - Feb 20, 2023
**CHANGED**
* The methods 'enableSDK' and 'disableSDK' have been added to 'AirBridge.h.' They are used to stop and resume all features. When you call 'disableSDK', the following actions will take place:
* All functions are stopped until call the enable method.
* Even if calling the disableSDK, useable a setter until the initialized.
* Calling all getters will return nil or false.
v1.28.2 - Jan 13, 2023
**FIXED**
* Solve issue that uninstall tracking is not working if call registerPushToken function before call startTracking function with set autoStartTrackingEnabled option as false.
v1.28.1 - Jan 03, 2023
**CHANGED**
* Improved to allow the use of real (double) values for the amount item when updating SKAdNetwork conversion value.
2022
v1.28.0 - Dec 29, 2022
**ADDED**
* Device Alias feature has been added.
* HTTP Referrer collection feature for UniversalLink has been added.
* Added feature to collect lifecycle events occurring within a session.
**CHANGED**
* Support for Xcode 13 and iOS 9, 10 has been discontinued.
* Improved to deliver Attribution information to callbacks faster.
v1.27.0 - Oct 05, 2022
**ADDED**
* Display warning message when tracking start function is called before SDK initialization
**CHANGED**
* Naming has been changed to match the conversion value method changed in iOS 15.4 and above.
* Allow uppercase alphabets for User Attributes Key and user alias key
v1.26.0 - Sep 14, 2022
**ADDED**
* Provides functionality to turn on/off the entire operation of Airbridge
* Provides an option to clear events in local storage during SDK initialization
v1.25.0 - Aug 05, 2022
**ADDED**
* Added feature to set event transmission cycle
**FIXED**
* Resolved issue where session was not properly measured when force-killing the app
**REMOVED**
* Stopped background event collection
v1.24.5 - Jul 28, 2022
**FIXED**
* Resolved compilation issue in Case Sensitive file systems
v1.24.4 - Jul 21, 2022
**ADDED**
* Supports app life cycle in SceneDelegate environment
* Events before startTracking are no longer destroyed and stored in local memory (limited to life cycle events)
* Debug level logs can be output
* Supports distribution through SPM (Swift Package Manager)
**FIXED**
* Bug fixes and performance improvements related to tracking
**Known issue**
* There is an issue where all life cycle events occurring before startTracking are recorded as re-events before session expiration
v1.24.1 - Jun 20, 2022
**ADDED**
* Added handleNotificationDeeplink function
v1.24.0 - May 04, 2022
**CHANGED**
* Modified so that Internal placement deeplink move event is collected only in placement.click function
* Modified to pass NSError in case of error
v1.23.0 - Apr 18, 2022
**ADDED**
* Added callback to placement.click function
**FIXED**
* Resolved issue where deviceUUID was transmitted to the server even when the app was opened with a Tracking link before the startTracking function was called
**FIXED**
* Resolved issue where SKAdNetwork feature was operating before startTracking function call
* Resolved issue where Life cycle event creation was operating before startTracking function call
v1.20.0 - Mar 15, 2022
**ADDED**
* Added feature to limit event storage size
v1.19.0 - Mar 08, 2022
**ADDED**
* Collect Deeplink Move event when URL is an Airbridge link during in-app deeplink movement
**CHANGED**
* Modified to use only 1 operation concurrent when sending events
* Changed the condition for determining Airbridge link from "if airbridge exists in query string" to "if there is a key-value pair where key is airbridge\_referrer among query key-value pairs"
v1.18.1 - Mar 03, 2022
**FIXED**
* Resolved issue where app could crash with low probability when force-closing the app
2021
v1.18.0 - Nov 12, 2021
**FIXED**
* Resolved issue where Build was not possible on Mac with Apple silicon
v1.17.0 - Jun 16, 2021
**ADDED**
* isRestartTrackingAuthorizeTimeout option add
* device.network.mcc add
* device.network.mnc add
**FIXED**
* Solve issue that session id is lost
* Resolved issue where app crashes when Universal Link URL is nil when opening the app
**CHANGED**
* Collect deferred deeplink and apple search ads attribution information after ATT status is selected
v1.16.0 - May 11, 2021
**CHANGED**
* Modified to generate install event when calling startTracking function when using Opt-out setting
v1.15.4 - Mar 10, 2021
**FIXED**
* Resolved issue where setSemantics function is not applied when called from swift
v1.15.3 - Feb 15, 2021
**ADDED**
* Collect token for Apple Search Ads Attribution from AdServices.framework on iOS 14.3 and above
**CHANGED**
* Deprecate ABUserEvent
* Deprecate ABEcommerceEvent
**FIXED**
* Resolved issue where Facebook deferred app link setting does not work with Facebook SDK 9.0.0 and above
v1.15.2 - Jan 08, 2021
**ADDED**
* Added sessionStartTimestamp
**FIXED**
* Resolved issue where last 3 digits of requestTimestamp were truncated
2020
v1.15.1 - Dec 17, 2020
**ADDED**
* Added feature to receive semantic attributes as dictionary from Web SDK when using Web interface feature
v1.15.0 - Dec 04, 2020
**ADDED**
* Added Callback to retrieve Attribution information
v1.14.5 - Nov 10, 2020
**FIXED**
* Resolved issues related to Attribution information collection
* Resolved issue where setSemanticAttributes function did not work in ABEcommerceEvent
v1.14.4 - Oct 05, 2020
**ADDED**
* Added Setter to change Semantic Attributes through Dictionary
v1.14.3 - Sep 22, 2020
**FIXED**
* Resolved issue where build was only possible on Simulator
**FIXED**
* Resolved issue where carrier information was not collected probabilistically on iPhones capable of Dual SIM on iOS 13.4
v1.11.3 - Jul 27, 2020
**ADDED**
* Added setSemanticAttributes function to ABInAppEvent
v1.11.2 - Jul 20, 2020
**FIXED**
* Resolved issue where carrier information was not collected probabilistically on iOS 13.4 and above
v1.11.1 - Jul 16, 2020
**FIXED**
* Resolved issue where Airbridge Universal Link probabilistically did not call deeplink callback in special situations on iOS 12
v1.11.0 - Jun 24, 2020
**CHANGED**
* Deeplink Event is not sent when Deeplink opens in the same app.
* All Airbridge Deeplinks are converted to SCHEME:// format and passed to Deeplink Callback.
* co.ab180.airbridge.deeplink.scheme and co.ab180.airbridge.deeplink.host options are removed.
* SCHEME can be found in Airbridge Dashboard > Tracking Link > Deep Link > iOS URI Scheme.
v1.10.9 - Jun 09, 2020
**ADDED**
* Added Web Interface that receives Web Event from Airbridge Web SDK
**FIXED**
* Bug fixes
v1.10.6 - May 11, 2020
**CHANGED**
* User Attributes key value must satisfy the regular expression ^\[a-z\_]\[a-z0-9\_]\*\$.
* User Attributes key value is maximum 128 characters.
* User Attributes value must be NSNumber or NSString. If NSString, maximum 1024 characters.
* Maximum number of User Attributes is 100.
* Event's Custom Attributes value must be one of NSNumber, NSString, NSArray. If NSArray, its item must be one of NSNumber, NSString.
v1.10.5 - Apr 13, 2020
**ADDED**
* Added Facebook Deferred App Link integration
v1.10.3 - Mar 30, 2020
**CHANGED**
* Modified to not hash User ID
**FIXED**
* Resolved issue where Locale changes when changing AppleLanguages of NSUserDefaults
v1.10.2 - Jan 22, 2020
**ADDED**
* Added User Attributes feature
* Added log feature
2018
v1.7.0 - Dec 26, 2018
**ADDED**
* Added feature to transmit remaining data for a certain period of time when the app is forcibly terminated.
**CHANGED**
* Improved data transmission speed.
v1.6.2 - Nov 13, 2018
**CHANGED**
* Modified the format of UUID per event to follow the UUID standard format.
**ADDED**
* Added feature to turn on/off hashing of userID and userEmail.