What's new in iOS 26.4.2 23E261
Compared with iOS 26.4.1 23E254, the previous release for iPhone18,2 in the catalogue.
23E254iPhone18,2 · Released on 23E261iPhone18,2 · Released on New and removed binaries
By firmware source. Only sources both builds index completely are compared.
No binary was added or removed.
New frameworks and dylibs
Added framework binaries and dynamic libraries.
No framework or dylib was added.
Entitlement keys
Top-level keys no binary held before, and keys no binary holds any more. Compare entitlements
No entitlement key was introduced or removed.
New Objective-C classes
The binaries gaining the most classes, compared exactly. Every binary whose classes changed
No binary gained Objective-C classes.
Sandbox operations and profiles
Operations the sandbox checks and the compiled profiles it ships. Compare sandbox records
No sandbox operation or profile changed.
Largest API-surface changes
Binaries whose exported interface changed, by record delta. Every API-surface change
| Binary | Records | Changed collections |
|---|---|---|
| dyld_cache /System/Library/PrivateFrameworks/AppPredictionClient.framework/AppPredictionClient | +26 | C strings +14Objective-C methods +9Objective-C ivars +3Exports changedLinked libraries changedObjective-C properties changedSections changed |
| dyld_cache /System/Library/PrivateFrameworks/PosterFuturesKit.framework/PosterFuturesKit | +10 | C strings +7Objective-C ivars +1Objective-C methods +1Undefined imports +1Objective-C properties changedSections changed |
| filesystem /System/Library/Messages/PlugIns/iMessage.imservice/iMessage | +7 | C strings +4Chained imports +1Objective-C methods +1Undefined imports +1Code identities changedSections changed |
| dyld_cache /System/Library/PrivateFrameworks/IMSharedUtilities.framework/IMSharedUtilities | +6 | C strings +4Exports +2Linked libraries changedObjective-C ivars changedSections changed |
| dyld_cache /System/Library/PrivateFrameworks/AppPredictionInternal.framework/AppPredictionInternal | +4 | C strings +2Objective-C methods +1Undefined imports +1Linked libraries changedObjective-C ivars changedSections changed |
| dyld_cache /System/Library/PrivateFrameworks/AppPredictionFoundation.framework/AppPredictionFoundation | +2 | Exports +1C strings +1Linked libraries changedSections changed |
| dyld_cache /System/Library/Accounts/Notification/DonationAccountWatcher.bundle/DonationAccountWatcher | 0 | Objective-C ivars changedSections changed |
| dyld_cache /System/Library/ControlCenter/Bundles/HomeControlCenterSingleTileModule.bundle/HomeControlCenterSingleTileModule | 0 | Objective-C ivars changedSections changed |
| dyld_cache /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib | 0 | Exports changedSections changed |
| dyld_cache /System/Library/Frameworks/AccessoryNotifications.framework/AccessoryNotifications | 0 | Objective-C ivars changedSections changed |