What's new in iOS 27.2 beta 4 (24B5110a) · iPhone18,2

Previous releaseiOS 27.2 beta 324B5099fiPhone18,2 · Released on Oct 5, 2026

This releaseiOS 27.2 beta 424B5110aiPhone18,2 · Released on Oct 13, 2026

Compared sources7app_os, dyld_cache, exclave_cache, exclave_os, filesystem, kernelcache, system_os

New and removed binaries

By firmware source. Only sources both builds index completely are compared.

13 added · 2 removed

Source	Change	Logical path	Size	Records
dyld_cache	Added	/System/Library/Frameworks/HomeExtensions.framework/HomeExtensions	3.0 MiB	4,655
dyld_cache	Added	/System/Library/PrivateFrameworks/PebblePlayCore.framework/PebblePlayCore	2.3 MiB	5,185
dyld_cache	Added	/System/Library/PrivateFrameworks/PebblePlayDaemon.framework/PebblePlayDaemon	347.9 KiB	917
dyld_cache	Added	/System/Library/PrivateFrameworks/PebblePlayFeatures.framework/PebblePlayFeatures	65.3 KiB	70
dyld_cache	Added	/System/Library/PrivateFrameworks/PebblePlayKit.framework/PebblePlayKit	104.6 KiB	183
filesystem	Added	/Applications/HomeProximityDynamicIslandUIService.app/HomeProximityDynamicIslandUIService	354.7 KiB	2,330
filesystem	Added	/System/Library/CoreServices/CoreTypes.bundle/Contents/Library/MobileDevices-0004.bundle/MobileDevices-0004	34.2 KiB	8
filesystem	Added	/System/Library/ExtensionKit/Extensions/HomeDeveloperSettingsIntents.appex/HomeDeveloperSettingsIntents	100.1 KiB	387
filesystem	Added	/System/Library/PreferenceBundles/HomeDeveloperSettings.bundle/HomeDeveloperSettings	73.0 KiB	212
filesystem	Added	/System/Library/PrivateFrameworks/HealthAppSupport.framework/PlugIns/MedicalIDFollowUpExtension.appex/MedicalIDFollowUpExtension	73.4 KiB	279
filesystem	Removed	/private/var/staged_system_apps/Health.app/PlugIns/MedicalIDFollowUpExtension.appex/MedicalIDFollowUpExtension	72.9 KiB	254
system_os	Removed	/usr/lib/objc/libobjcMsgSend35.dylib	84.0 KiB	43

All 6 binaries added to dyld_cache All 7 binaries added to filesystem

New frameworks and dylibs

Added framework binaries and dynamic libraries.

5 frameworks · 1 dylibs

Frameworks

Dylibs

/usr/lib/objc/libobjcMsgSend35.dylib dyld_cache

Entitlement keys

Top-level keys no binary held before, and keys no binary holds any more. Compare entitlements

10 new · 0 removed

New keys

com.apple.conversation-accessibility.required-host-entitlement 3 holders
com.apple.corespeech.uitrainingservice 5 holders
com.apple.locationd.stored_location 1 holder
com.apple.private.avfoundation.capture.query-module-sealed-state.allow 1 holder
com.apple.private.breadboard.privacy.read 1 holder
com.apple.private.home.extension-host 3 holders
com.apple.private.skylight.event-tap.direct-touch 1 holder
com.apple.runningboard.home-extensions 2 holders
com.apple.runningboard.invalidateanyassertion 1 holder
com.apple.system.get-alert-tone 1 holder

Removed keys

No removed key.

New Objective-C classes

The binaries gaining the most classes, compared exactly. Every binary whose classes changed

141 binaries changed

Binary	New	Classes
dyld_cache /System/Library/PrivateFrameworks/PebblePlayCore.framework/PebblePlayCore New binary	66	`SPAVRouteSPTemplateInterfacePebblePlayCore.LocalProxyPebblePlayCore.LaunchMetricPebblePlayCore.MemoryMonitorPebblePlayCore.NWActorHelperPebblePlayCore.NetworkHelperPebblePlayCore.SessionMetricPebblePlayCore.PlaybackMetricPebblePlayCore.SPICallCounterPebblePlayCore.SyncCheckMetricPebblePlayCore.StateDumpHandler`66 in all
dyld_cache /System/Library/Frameworks/HomeExtensions.framework/HomeExtensions New binary	63	`XPC_BoolValueXPC_ConnectionIntentXPC_ConnectionStateXPC_EnumSettingMetadataXPC_EnumSettingOptionXPC_ExtensionDriverProxyXPC_HomeAppDriverProxyXPC_HomeKitUUIDXPC_InformationSettingMetadataXPC_MetadataValueXPC_PropertiesXPC_RangeSettingMetadata`63 in all
dyld_cache /System/Library/PrivateFrameworks/CoreHAP.framework/CoreHAP	39	`HAP2AccessoryAddressResolverPipelineHAP2AccessoryDNSResolverHAP2AccessoryServerIPCacheDataHAP2BrowserResolverRegistryHAP2CoAPRequestRacingLogEventHAP2DefaultAccessoryAddressResolverPipelineFactoryHAP2SessionKeepAliveConfigurationHAP2SessionKeepAliveConfigurationEntryHAP2SessionKeepAliveListenerHAP2SessionKeepAliveTransportStateHAPAccessoryCHMMetricsLogEventHAPAccessoryCHMRecoveryLogEvent`39 in all
dyld_cache /System/Library/PrivateFrameworks/PhotosUIPrivate.framework/PhotosUIPrivate	37	`PUOneUpInsetContentGeometryPhotosPosterVibrancyControllerPhotosPosterVibrancyEffectControllerPhotosPosterVibrancyShadowControllerPhotosUIPrivate.PUPosterSetupSettingsPhotosUIPrivate.PUPosterSetupPlaceholderPhotosUIPrivate.PhotosPosterProviderBasePhotosUIPrivate.PhotosPosterTimeProviderPhotosUIPrivate.PhotosPosterMetadataModelPhotosUIPrivate.PhotosClockPosterEditModelPhotosUIPrivate.PhotosPosterTimeLabelModelPhotosUIPrivate.PUPosterSetupAssetViewModel`37 in all
dyld_cache /System/Library/PrivateFrameworks/HomeKitDaemon.framework/HomeKitDaemon	31	`HMDBeaconKeybagXPCServiceHMDCoAPRequestRacingLogEventHMDDataStreamTCPPeerSourceHAP2HMDDataStreamTCPPeerSourceIPHMDDefaultLinwoodSettingsHMDDelegatedClientContextHMDHAP2AccessoryServerIPCacheHMDHAP2AccessoryServerIPStoreHMDHomePeriodicAutoRepairHMDPredicateShapeValidatorHMDProximityControlScannerHMDStatusChannelWorkingStoreState`31 in all
dyld_cache /System/Library/PrivateFrameworks/SiriInstrumentation.framework/SiriInstrumentation	27	`RISchemaRIClientEventRISchemaRIClientEventMetadataRISchemaRIErrorRISchemaRIRemoteContextRISchemaRIRemoteEndedRISchemaRIRemoteFailedRISchemaRIRemoteStartedRISchemaRISourceContextRISchemaRISourceEndedRISchemaRISourceFailedRISchemaRISourceStartedRISessionSchemaRISessionClientEvent`27 in all
dyld_cache /System/Library/PrivateFrameworks/HomeUI.framework/HomeUI	18	`HUBrandSettingsItemModuleHUBrandSettingsItemModuleControllerHUBrandSupportItemModuleHUBrandSupportItemModuleControllerHUExtendedContentItemProviderHULeftUnsecuredThresholdItemHUServiceDetailsMotionActivationDurationItemHUSiriSetupViewControllerWrapperHUTopCapActionItemHUTopCapActionItemProviderHUTopCapActionPickerFactoryHUTopCapSettingsItemModule`18 in all
dyld_cache /System/Library/PrivateFrameworks/CompanionSetupKit.framework/CompanionSetupKit	15	`CSKPhotoSetupSpecificationClassifierJ490ClassifierJ490InputClassifierJ490OutputCompanionSetupKit.CSKAddUserClientCompanionSetupKit.CSKAddUserServerCompanionSetupKit.CSKSetupFlowManagerCompanionSetupKit.CSKManualSetupServerCompanionSetupKit.CSKSetupPebbleClientCompanionSetupKit.CSKSetupPebbleServerCompanionSetupKit.CSKEnrollmentExporterCompanionSetupKit.CSKSetupHomePodServer`15 in all

Sandbox operations and profiles

Operations the sandbox checks and the compiled profiles it ships. Compare sandbox records

1 binary changed

Binary	Collection	Changes
kernelcache com.apple.security.sandbox	Sandbox profiles	51 updated`collectioncollection/com.apple.driverkitdprotoboxprotobox/AppleQEMUGuestAgentprotobox/Campoprotobox/CheckerBoardprotobox/DumpBasebandCrashprotobox/ManagedStatusSubscriberprotobox/ManagementTestSubscriberprotobox/MobileGestaltHelperprotobox/ReportSystemMemoryprotobox/SpringBoard`

Largest API-surface changes

Binaries whose exported interface changed, by record delta. Every API-surface change

8,322 binaries

Binary	Records	Changed collections
dyld_cache /System/Library/PrivateFrameworks/OmniSearch.framework/OmniSearch	+4,884	C strings +2,812Exports +1,632Undefined imports +361Objective-C methods +28Objective-C ivars +27Objective-C properties +10Objective-C classes +6Linked libraries +4Objective-C protocols +2Objective-C protocol adoptions +2Dylib identities changedSections changed
dyld_cache /System/Library/PrivateFrameworks/HomeKitDaemonFoundation.framework/HomeKitDaemonFoundation	+2,990	Exports +2,731C strings +127Undefined imports +58Objective-C methods +40Objective-C ivars +8Objective-C properties +8Objective-C classes +5Sections +5Objective-C protocols +4Objective-C protocol adoptions +2Linked libraries +1Segments +1
dyld_cache /System/Library/PrivateFrameworks/RemindersAppIntents.framework/RemindersAppIntents	+2,796	Exports +2,464C strings +269Objective-C methods +26Objective-C protocol adoptions +12Objective-C protocols +10Objective-C properties +8Undefined imports +6Linked libraries +1Objective-C ivars changedSections changed
dyld_cache /System/Library/PrivateFrameworks/HomeKitDaemon.framework/HomeKitDaemon	+2,755	C strings +1,509Objective-C methods +603Objective-C properties +255Objective-C ivars +179Undefined imports +117Objective-C classes +31Exports +26Objective-C protocol adoptions +20Objective-C protocols +12Linked libraries +3Dylib identities changedObjective-C categories changedSections changed
dyld_cache /System/Library/Frameworks/HomeKit.framework/HomeKit	+2,739	Exports +2,053C strings +358Objective-C methods +121Objective-C ivars +100Objective-C properties +51Undefined imports +36Objective-C classes +12Linked libraries +4Objective-C protocol adoptions +4Dylib identities changedSections changed
dyld_cache /System/Library/PrivateFrameworks/CoreHAP.framework/CoreHAP	+2,677	Objective-C methods +1,044C strings +533Objective-C properties +424Objective-C ivars +308Exports +230Objective-C protocol adoptions +67Objective-C classes +39Undefined imports +25Objective-C protocols +6Sections +1Dylib identities changedLinked libraries changed
dyld_cache /System/Library/PrivateFrameworks/PhotosUIPrivate.framework/PhotosUIPrivate	+2,577	Exports +1,464C strings +480Objective-C ivars +270Objective-C methods +226Undefined imports +61Objective-C classes +37Objective-C properties +12Linked libraries +11Objective-C protocol adoptions +11Objective-C protocols +5Dylib identities changedSections changed
dyld_cache /System/Library/PrivateFrameworks/HomeDataModel.framework/HomeDataModel	+1,749	Exports +1,454C strings +231Objective-C ivars +26Objective-C methods +15Undefined imports +12Objective-C classes +6Objective-C protocol adoptions +3Objective-C protocols +2Linked libraries changedSections changed
dyld_cache /System/Library/PrivateFrameworks/CompanionSetupKit.framework/CompanionSetupKit	+1,687	Exports +1,016C strings +332Objective-C ivars +202Objective-C methods +55Undefined imports +32Objective-C classes +15Objective-C properties +14Objective-C protocol adoptions +9Linked libraries +8Objective-C protocols +4Sections changed
filesystem /usr/libexec/proximitycontrold	+1,456	C strings +649Undefined imports +297Chained imports +295Objective-C ivars +125Objective-C methods +46Objective-C classes +13Exports +9Objective-C protocols +8Linked libraries +7Objective-C protocol adoptions +6Objective-C properties +1Code identities changedPlist properties changedSections changed