Release appearance
iOS 26.0 Beta 5
Recorded context
About this appearance
iOS 26 Beta 5 (23A5308g) has 9 source-supported milestone deltas plus exact build and channel metadata.
- Date
- Aug 5, 2025
- Availability
- available
- Revision
- No
- Build
23A5308G
Release notes
What changed
Original editorial synthesis. Linked references appear with the claims they support and in the source ledger.
Release identity
iOS 26 Beta 5 appeared on 2025-08-05. Its primary build is 23A5308g; that build identifier is scoped to iOS even when the same alphanumeric value also appeared on another Apple platform.[1]
What changed at this milestone
The adjacent preserved Apple Developer snapshots support 9 milestone-specific items for this seed. These are deltas visible at this point in the prerelease cycle, not a cumulative copy of the eventual public release notes.[2][3][4][5][6][7][8][9][10]
How to read these notes
Apple’s iOS and iPadOS 26 developer-notes page was updated throughout the beta cycle. This article uses preserved snapshots to isolate what the retained evidence supports at Beta 5; it does not project the final public notes backward or describe an unlisted revision as a bug or security fix.[11][12]
Source ledger
References
Sources are linked to the claims they support. Publication and access dates are shown when available.
- iOS 26.0 beta 5 (23A5308g)
Apple Developer · Apple · 2025-08-05T00:00:00.000Z · iOS 26.0 Beta 5; build 23A5308g
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · CoreData — Deprecations; 157297746
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · CoreData — Known Issues; 153848710
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · Foundation Models framework — New Features; 152381043
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · Foundation Models framework — New Features; 155801948
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · Foundation Models framework — New Features; 156086748, 156351123, 156721060
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · Game Controller — New Features; 137782227
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · HealthKit — Resolved Issues; 155576088
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · Passcode — Known Issues; 156070293
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · SwiftUI — Resolved Issues; 154232311
- iOS & iPadOS 26 Release Notes — beta-5 snapshot
Apple Developer via Internet Archive · Apple · 2025-08-06T00:00:00.000Z · beta-5 release-note snapshot
- iOS & iPadOS 26 Release Notes
Apple Developer Documentation · Apple · 2026-07-29 · Living document; historical attribution boundary
Release changes
Changed in this release
Features, fixes, removals, and regressions first observed in this release record.
developerApi · introduced
Multilingual content tagging
The Foundation Models content-tagging use case expanded beyond English and exposed supported-language discovery.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · Foundation Models framework — New Features; 155801948
developerApi · introduced
Foundation Models prompt prewarming
LanguageModelSession.prewarm() began caching instructions and prompt prefixes to reduce time to the first generated token.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · Foundation Models framework — New Features; 152381043
regression · regression
Alphanumeric passcode entry regression
Some devices with alphanumeric passcodes could show a single-digit entry screen that prevented the correct passcode from being entered.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · Passcode — Known Issues; 156070293
bugFix · fixed
Health data at the power-off screen
Health data remained accessible after a device without a passcode reached the Power Off slider.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · HealthKit — Resolved Issues; 155576088
bugFix · fixed
SwiftUI full-screen cover backgrounds
SwiftUI full-screen covers again used opaque backgrounds where transparency was unintended.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · SwiftUI — Resolved Issues; 154232311
developerApi · introduced
Foundation Models refusal and raw-content APIs
Guided generation added explicit refusal handling, raw generated-content access, and a permissive mode for supported text transformations.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · Foundation Models framework — New Features; 156086748, 156351123, 156721060
removal · removed
Deprecated Core Data ubiquitous-store options removed
The iOS and iPadOS 26 SDK removed long-deprecated ubiquitous-store option keys superseded by NSPersistentCloudKitContainer and SwiftData.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · CoreData — Deprecations; 157297746
other · changed
Beta 5 seed
iOS 26 Beta 5 appeared on 2025-08-05 as build 23A5308g.
- [1] iOS 26.0 beta 5 (23A5308g) · iOS 26.0 Beta 5; build 23A5308g
feature · introduced
Multi-device DualSense pairing
A DualSense or DualSense Edge controller could pair with multiple Apple devices and switch between them.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · Game Controller — New Features; 137782227
developerApi · changed
Core Data concurrency annotations
The Beta 5 SDK revised Core Data Sendable and isolation annotations, surfacing warnings for code that violated established context-concurrency rules.
- [1] iOS & iPadOS 26 Release Notes — beta-5 snapshot · CoreData — Known Issues; 153848710