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Release appearance

iOS 26.0 Beta 4

Full article
Developer beta

Recorded context

About this appearance

iOS 26 Beta 4 (23A5297i) has 4 source-supported milestone deltas plus exact build and channel metadata.

Date
Jul 22, 2025
Availability
available
Revision
No

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 4 appeared on 2025-07-22. Its primary build is 23A5297i; 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 4 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]

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 4; it does not project the final public notes backward or describe an unlisted revision as a bug or security fix.[6][7]

Source ledger

References

Sources are linked to the claims they support. Publication and access dates are shown when available.

  1. iOS 26.0 beta 4 (23A5297i)

    Apple Developer · Apple · 2025-07-22T00:00:00.000Z · iOS 26.0 Beta 4; build 23A5297i

    Archived copyBack to text ↑
  2. iOS & iPadOS 26 Release Notes — beta-4 snapshot

    Apple Developer via Internet Archive · Apple · 2025-07-22T00:00:00.000Z · Foundation Models framework — Known Issues; 152318091, 155273863

    Back to text ↑
  3. iOS & iPadOS 26 Release Notes — beta-4 snapshot

    Apple Developer via Internet Archive · Apple · 2025-07-22T00:00:00.000Z · Keyboards — Known Issues; 154163977

    Back to text ↑
  4. iOS & iPadOS 26 Release Notes — beta-4 snapshot

    Apple Developer via Internet Archive · Apple · 2025-07-22T00:00:00.000Z · Swift Charts — New Features; 148361385

    Back to text ↑
  5. iOS & iPadOS 26 Release Notes — beta-4 snapshot

    Apple Developer via Internet Archive · Apple · 2025-07-22T00:00:00.000Z · Wi-Fi Aware — Known Issues; 153100140

    Back to text ↑
  6. iOS & iPadOS 26 Release Notes — beta-4 snapshot

    Apple Developer via Internet Archive · Apple · 2025-07-22T00:00:00.000Z · beta-4 release-note snapshot

    Back to text ↑
  7. iOS & iPadOS 26 Release Notes

    Apple Developer Documentation · Apple · 2026-07-29 · Living document; historical attribution boundary

    Back to text ↑

Release changes

Changed in this release

Features, fixes, removals, and regressions first observed in this release record.

knownIssue · knownIssue

Foundation Models prompt and guardrail limitations

documentedconfirmed

Some prompts could produce unexpected responses or erroneous guardrail-violation errors in the Foundation Models framework.

  1. [1] iOS & iPadOS 26 Release Notes — beta-4 snapshot · Foundation Models framework — Known Issues; 152318091, 155273863

developerApi · introduced

Chart3D

documentedconfirmed

Swift Charts added Chart3D for RealityKit-powered three-dimensional data and mathematical-surface visualization on iOS.

  1. [1] iOS & iPadOS 26 Release Notes — beta-4 snapshot · Swift Charts — New Features; 148361385

knownIssue · knownIssue

10-key Return key rotation issue

documentedconfirmed

The Return key could stop responding on Japanese and Chinese 10-key keyboards after rotating from landscape to portrait.

  1. [1] iOS & iPadOS 26 Release Notes — beta-4 snapshot · Keyboards — Known Issues; 154163977

other · changed

Beta 4 seed

documentedconfirmed

iOS 26 Beta 4 appeared on 2025-07-22 as build 23A5297i.

  1. [1] iOS 26.0 beta 4 (23A5297i) · iOS 26.0 Beta 4; build 23A5297i