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Release appearance

iOS 26.0 Beta 1 v2

Full article
Developer beta

Recorded context

About this appearance

iOS 26 Beta 1 v2 (23A5260u) has 1 source-supported milestone delta plus exact build and channel metadata.

Date
Jun 13, 2025
Availability
available
Revision
Yes

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 1 v2 appeared on 2025-06-13. Its primary build is 23A5260u; that build identifier is scoped to iOS even when the same alphanumeric value also appeared on another Apple platform. Apple limited this revised build to the iPhone 15 and iPhone 16 product families.[1]

What changed at this milestone

The adjacent preserved Apple Developer snapshots support 1 milestone-specific item 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]

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 1 v2; it does not project the final public notes backward or describe an unlisted revision as a bug or security fix.[3][4]

Source ledger

References

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

  1. iOS 26 beta (23A5260n | 23A5260u)

    Apple Developer · Apple · 2025-06-13T00:00:00.000Z · iOS 26.0 Beta 1 v2; build 23A5260u

    Archived copyBack to text ↑
  2. iOS & iPadOS 26 Release Notes — beta-1-v2 snapshot

    Apple Developer via Internet Archive · Apple · 2025-06-14T00:00:00.000Z · General — Resolved Issues; 153071880

    Back to text ↑
  3. iOS & iPadOS 26 Release Notes — beta-1-v2 snapshot

    Apple Developer via Internet Archive · Apple · 2025-06-14T00:00:00.000Z · beta-1-v2 release-note snapshot

    Back to text ↑
  4. 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.

bugFix · fixed

iPhone 15 and iPhone 16 startup recovery

documentedconfirmed

The updated Beta 1 build supplied a restore path for affected iPhone 15 and iPhone 16 models that could show a low-battery symbol and fail to start after the original seed.

  1. [1] iOS & iPadOS 26 Release Notes — beta-1-v2 snapshot · General — Resolved Issues; 153071880

other · changed

Beta 1 v2 revised seed

documentedconfirmed

iOS 26 Beta 1 v2 appeared on 2025-06-13 as build 23A5260u. This build was limited to the iPhone 15 and iPhone 16 product families.

  1. [1] iOS 26 beta (23A5260n | 23A5260u) · iOS 26.0 Beta 1 v2; build 23A5260u