security · changed
Stricter TLS for managed system services
documentedconfirmed
Selected management, enrollment, app-installation, and software-update processes began requiring TLS 1.2 or later with App Transport Security-compatible ciphers and certificates.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · Network Security — New Features; 176055825
compatibility · changed
Launch screen required for SDK 27 apps
documentedconfirmed
iOS and iPadOS apps built with the 27 SDK were required to declare a launch screen before App Store submission support began.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · UIKit — New Features; 168247372
compatibility · introduced
PlayStation Access controller support
documentedconfirmed
iPhone and iPad gained PlayStation Access controller support, including custom input profiles saved on the Apple device.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · Game Controller — New Features; 168071382
developerApi · introduced
HealthKit menopause sample types
documentedconfirmed
HealthKit added read/write sample types for menopausal state and bleeding after menopause under Reproductive Health.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · HealthKit — New Features; 178532053
compatibility · changed
Scene-based lifecycle required
documentedconfirmed
Apps linked with the latest SDK had to adopt the scene-based lifecycle or they would fail to launch.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · UIKit — Deprecations; 141837548
developerApi · introduced
System media-sharing extensions
documentedconfirmed
New frameworks let developers add media-sharing protocols as system extensions and gave media apps a common API for using them.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · Media Sharing Extensions — New Features; 168722808
removal · removed
On Demand Resources deprecated
documentedconfirmed
Apple deprecated On Demand Resources and NSBundleResourceRequest in favor of Background Assets.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · On Demand Resources — Deprecations; 170066290
enhancement · introduced
Advanced Dictation on-device model
documentedconfirmed
An optional on-device Dictation model became available for developer testing to improve recognition accuracy.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · Dictation — New Features; 178444388
developerApi · introduced
Localized Background Assets packs
documentedconfirmed
Background Assets could deliver language-specific asset packs according to the user’s preferred languages, reducing unnecessary app storage.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · Background Assets — New Features; 163944365
developerApi · introduced
Swift-first MetricKit reporting
documentedconfirmed
MetricKit added Swift-first asynchronous reports, state-aware diagnostics, memory-termination diagnostics, and application-level Metal frame-rate metrics.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · MetricKit — New Features; 96078210, 159889985, 159890067, 159890165, 164439529
feature · introduced
Home video descriptions and search
documentedconfirmed
When enabled, Apple Intelligence for Home could process HomeKit Secure Video recordings on-device and through Private Cloud Compute for descriptions and search.
Recorded at Beta 1
- [1] iOS & iPadOS 27 Beta Release Notes (preserved snapshot) · HomeKit — New Features; 178858470
enhancement · changed
RCS inline replies and media reactions
undocumentedcorroborated
Messages added inline replies for RCS conversations and displayed reactions on shared images and video more directly.
Recorded at Beta 2
- [1] Here's what's new with iOS 27 beta 2 · iOS 27 beta 2 — RCS
- [2] Everything New in iOS 27 Beta 2 · RCS
bugFix · fixed
Channel Sounding ranging results
documentedconfirmed
Core Bluetooth and Nearby Interaction began returning Channel Sounding ranging results.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · Core Bluetooth and Nearby Interaction — Known Issues to Resolved Issues; 178333845 and 178073051
developerApi · changed
Core AI Neural Engine changes
documentedconfirmed
Core AI improved large-model loading and process-level memory attribution on the Neural Engine while restricting background access.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · Core AI — New Features; 174796039
bugFix · fixed
Metal clamp-to-edge sampling
documentedconfirmed
Apple fixed Metal sampling that could incorrectly clamp edge-addressed texture results to zero.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · Metal — Known Issues to Resolved Issues; 172520325 status transition
bugFix · fixed
Foundation Models profile and Generable fixes
documentedconfirmed
Apple fixed an enum Generable warning, transcript-truncation runtime errors, and Profile onPrompt callbacks that could be skipped.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · Foundation Models — Known Issues to Resolved Issues; 177899620, 177901494, 177902488
knownIssue · knownIssue
Screen Time child-account restrictions
documentedconfirmed
Configured Screen Time restrictions could fail to apply to child accounts.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · Screen Time — Known Issues; 175437403
feature · introduced
Remote Apple TV updates in Home
undocumentedcorroborated
The Home app added a control for remotely starting software updates on a supported Apple TV.
Recorded at Beta 2
- [1] Everything New in iOS 27 Beta 2 · Apple TV
- [2] Here's what's new with iOS 27 beta 2 · iOS 27 beta 2 — Home app
bugFix · fixed
Home accessory responsiveness after OS 27 installation
undocumentedreported
One publication reported that Beta 2 corrected Home accessories that became unresponsive after installing the initial iOS 27 and tvOS 27 betas.
Recorded at Beta 2
- [1] Everything New in iOS 27 Beta 2 · HomeKit Accessories
enhancement · changed
Write with Siri keyboard entry
undocumentedcorroborated
A Write with Siri entry appeared above the software keyboard, making the tool reachable without first selecting text.
Recorded at Beta 2
- [1] Here's what's new with iOS 27 beta 2 · iOS 27 beta 2 — What’s new
- [2] Everything New in iOS 27 Beta 2 · Write with Siri
bugFix · fixed
Core AI with Metal API Validation
documentedconfirmed
Core AI models could execute while Metal API Validation was enabled.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · Core AI — Known Issues to Resolved Issues; 177991751 status transition
developerApi · introduced
Attributed note names in App Intents
documentedconfirmed
The Notes create and update schemas accepted an AttributedString name parameter.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · App Intents — New Features; 173431080
bugFix · fixed
SwiftData Query background-save deadlock
documentedconfirmed
SwiftData no longer deadlocked a Query when a background actor saved its ModelContext while scheduling ModelActor tasks.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · SwiftData — Known Issues to Resolved Issues; 178113288 status transition
developerApi · changed
SwiftUI document protocol model
documentedconfirmed
SwiftUI introduced a combined Document protocol for read/write documents and deprecated FileDocument in favor of ReadableDocument or Document.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · SwiftUI — New Features and Deprecations; 177458781 and 178776840
developerApi · introduced
HealthKit heart-rate and cycling-power zones
documentedconfirmed
HealthKit added support for heart-rate zones and cycling-power zones.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · HealthKit — New Features; 135746152
compatibility · changed
Calendar delete-event schema rename
documentedconfirmed
The calendar.deleteEvents App Intents schema was renamed to calendar.deleteEvent.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · App Intents — Deprecations; 176751155
developerApi · introduced
Trust Insights framework
documentedconfirmed
Apps with the required entitlement could use the TrustInsights framework to request network-backed trust results.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · Trust Insights — New Features; 154949256
compatibility · fixed
AirPods Max 2 beta firmware updates
documentedconfirmed
iOS 27 Beta 2 restored support for installing AirPods Max 2 beta firmware after Beta 1 could not perform the update.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · AirPods Max 2 — Known Issues; Beta 1 limitation and Beta 2 support; 178280323
developerApi · introduced
VideoToolbox frame interpolation dimensions
documentedconfirmed
Low-latency frame interpolation accepted arbitrary source dimensions up to 1080p.
Recorded at Beta 2
- [1] iOS & iPadOS 27 Beta 2 Release Notes (preserved snapshot) · VideoToolbox — New Features; 179040806
knownIssue · knownIssue
Recently Deleted file removal
documentedconfirmed
Deleting files from Recently Deleted could fail or take substantially longer than expected.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · Files — Known Issues; 179787658
knownIssue · knownIssue
Critical Alerts enabled automatically
documentedconfirmed
Critical Alerts could be enabled automatically for an app when the app requested notification permission.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · Notifications — Known Issues; 179179362
developerApi · changed
SwiftUI item-or-error dialogs back-deployed
documentedconfirmed
SwiftUI’s data-item and error-object alert and confirmation-dialog modifiers became available to projects targeting earlier OS releases.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · SwiftUI — New Features; 179388848
bugFix · fixed
LanguageModel existential compiler support
documentedconfirmed
Passing an existential LanguageModel to the model modifier no longer caused a compiler error.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · Foundation Models — Known Issues to Resolved Issues; 178545978 status transition
bugFix · fixed
StoreKit upgraded-subscription expiration
documentedconfirmed
StoreKit Testing stopped immediately marking upgraded-subscription transactions as expired.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · StoreKit Testing in Xcode — Known Issues to Resolved Issues; 178441109 status transition
enhancement · changed
Updated Reminders icon
undocumentedcorroborated
Reminders received a revised icon using hollow, colored list bullets.
Recorded at Beta 3
- [1] Here's what's new with iOS 27 beta 3 · iOS 27 beta 3 — Reminders
- [2] Everything New in iOS 27 Beta 3 · Reminders
feature · introduced
Siri voice pace and expressivity controls
undocumentedcorroborated
Previously inactive Siri voice pace and expressivity controls became usable on the supported iPhone models reported for Beta 3.
Recorded at Beta 3
- [1] Here's what's new with iOS 27 beta 3 · iOS 27 beta 3 — What’s new
- [2] Everything New in iOS 27 Beta 3 · Siri Voice
enhancement · changed
Cellular status while connected to Wi-Fi
undocumentedcorroborated
Control Center began showing cellular signal and network type while the iPhone remained connected to Wi-Fi.
Recorded at Beta 3
- [1] Everything New in iOS 27 Beta 3 · Control Center
- [2] Here's what's new with iOS 27 beta 3 · iOS 27 beta 3 — Control Center
feature · introduced
Limited or full HealthKit history access
documentedconfirmed
HealthKit’s updated permission flow let users grant an app limited history or full history.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · HealthKit — New Features; 172310874
enhancement · changed
Shortcuts starting-editor choice
undocumentedcorroborated
Shortcuts added a choice between beginning with natural-language description and opening the manual action editor.
Recorded at Beta 3
- [1] Here's what's new with iOS 27 beta 3 · iOS 27 beta 3 — Shortcuts
- [2] Everything New in iOS 27 Beta 3 · Shortcuts
knownIssue · knownIssue
Shortcuts on-device model output
documentedconfirmed
The Shortcuts Use Model action could fail for some output types when configured for on-device execution.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · Shortcuts — Known Issues; 181071784
developerApi · introduced
Background Neural Engine entitlement
documentedconfirmed
Core AI documented a dedicated entitlement for Neural Engine inference during continued-processing background tasks.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · Core AI — Known Issues to New Features; 179282606 status transition
bugFix · fixed
Swift System stat method conflicts
documentedconfirmed
Swift System fixed source conflicts between custom unqualified stat calls and the new FilePath or FileDescriptor stat methods.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · System — Known Issues to Resolved Issues; 177911316 status transition
developerApi · introduced
Navigation bar minimization API
documentedconfirmed
UIKit added UINavigationItem.navigationBarMinimization as the replacement control for navigation-bar minimization behavior.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · UIKit — New Features; 177953926
developerApi · fixed
SwiftUI document concurrency annotations
documentedconfirmed
SwiftUI corrected document reader/writer concurrency and main-actor isolation for document factories and URLDocumentConfiguration.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · SwiftUI — Resolved Issues; 180302015, 180302065, 180302075
knownIssue · knownIssue
Blurred foreground status bar
documentedconfirmed
The iPhone status bar could appear blurred while an app was in the foreground.
Recorded at Beta 3
- [1] iOS & iPadOS 27 Beta 3 Release Notes (preserved snapshot) · Status Bar — Known Issues; 179470940
feature · introduced
TV app automatic download controls
undocumentedcorroborated
Two independent publications reported Beta 4 controls for fetching upcoming episodes and removing watched downloads; Apple’s developer notes did not enumerate the interface change.
Recorded at Beta 4
- [1] Here’s What’s New with iOS 27 Beta 4 · TV app downloads
- [2] iOS 27 Beta 4: Everything New · TV app downloads
enhancement · changed
Photos fill-display preference
undocumentedcorroborated
Two independent publications reported a Photos fill-display preference in Beta 4; Apple’s developer notes did not enumerate the interface change.
Recorded at Beta 4
- [1] Here’s What’s New with iOS 27 Beta 4 · Photos setting
- [2] iOS 27 Beta 4: Everything New · Photos setting