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Release appearance

macOS 26.0 Beta 5

Full article
Developer beta

Recorded context

About this appearance

A clean archived Apple DocC boundary isolates macOS Tahoe 26 Beta 5; the raw diff has 21 added or status-changed lines and 5 removed or superseded lines, grouped here into 10 sourced occurrences.

Date
Aug 5, 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.

Sequential archive diff

The CDX-confirmed before and after payloads bracket Beta 5 without crossing another macOS 26 milestone. The after-state page explicitly identifies itself as macOS Tahoe 26 Beta 5 Release Notes.[1][2]

Documented Beta 5 delta

The raw comparison contains 21 added or status-changed lines and 5 removed or superseded lines. This article groups the high-signal issue-ID transitions into 10 copyright-safe editorial occurrences rather than reproducing Apple's changelog.[1][2]

Attribution boundary

Each structured occurrence is limited to an issue ID or status change present in this clean adjacent boundary. A removed note without an explicit replacement is not treated as proof of a fix, and no later Public note or build identity is inherited.[1][2]

Source ledger

References

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

  1. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · After-state raw payload 20250806092740; macOS Tahoe 26 Beta 5 Release Notes

    Back to text ↑
  2. Archived macOS Tahoe 26 Beta 4 Release Notes — 20250727152747 raw state

    Apple Developer · 2026-07-30 · Before-state raw payload 20250727152747; macOS Tahoe 26 Beta 4 Release Notes

    Back to text ↑
  3. Archived macOS Tahoe 26 Beta 4 Release Notes — 20250727152747 raw state

    Apple Developer · 2026-07-30 · Before-state raw payload 20250727152747; comparison baseline

  4. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · CoreData — Deprecations; issues 157297746 and FB19286235

  5. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · CoreData — Known Issues; issues 153848710 and FB18216198

  6. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · Foundation Models framework — Known Issues; issues 156223847, FB18944619, and 156723065

  7. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · Foundation Models framework — New Features; issues 156086748, 156109416, 156351123, and 156721060

  8. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · Foundation Models framework — Resolved Issues; issues 153773704, FB18190120, 155313086, FB18691470, 155957346, and FB18878026

  9. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · Game Controller — New Features; issue 137782227

  10. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · Quick Look — Resolved Issues; issue 154817946

  11. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · Search — Known Issues; issue 157464670

  12. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · SwiftUI — Resolved Issues; issues 147954025 and 155581361

  13. Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state

    Apple Developer · 2026-07-30 · TextKit — Resolved Issues; issue 155893102

Release changes

Changed in this release

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

bugFix · fixed

Foundation Models guided-generation and tool fixes

documentedconfirmed

Three former framework limitations move to resolved status at the Beta 5 boundary.

  1. [1] Archived macOS Tahoe 26 Beta 4 Release Notes — 20250727152747 raw state · Before-state raw payload 20250727152747; comparison baseline
  2. [2] Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state · Foundation Models framework — Resolved Issues; issues 153773704, FB18190120, 155313086, FB18691470, 155957346, and FB18878026

developerApi · introduced

Foundation Models refusal, completion, raw-content, and permissive-transform APIs

documentedconfirmed

Four new model-session and generated-content capabilities appear in the clean Beta 5 snapshot.

  1. [1] Archived macOS Tahoe 26 Beta 4 Release Notes — 20250727152747 raw state · Before-state raw payload 20250727152747; comparison baseline
  2. [2] Archived macOS Tahoe 26 Beta 5 Release Notes — 20250806092740 raw state · Foundation Models framework — New Features; issues 156086748, 156109416, 156351123, and 156721060