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Release appearance

iOS 11.2.1 Public

Full article
Public release

Recorded context

About this appearance

iOS 11.2.1 reached the public release channel on December 13, 2017. iOS 11.2.1 reached the public channel on December 13, 2017. The narrowly scoped update repaired shared-user remote access in Home and included a documented HomeKit security correction. This article records the public appearance only and does not assign cumulative notes to an earlier beta.

Date
Dec 13, 2017
Availability
available
Revision
No

Release notes

What changed

Original editorial synthesis. Linked references appear with the claims they support and in the source ledger.

Public release

Apple’s dated records place the public iOS 11.2.1 appearance on December 13, 2017. This article covers that public release and does not infer beta-specific timing or an undocumented build number.[1][2]

What changed

Apple’s consumer note says the release fixed a bug that could disable remote access for shared Home users. The corresponding advisory records improved validation for a HomeKit message-handling issue tracked as CVE-2017-13903.[3][2]

Source ledger

References

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

  1. About the security content of iOS 11.2.1

    Apple Support · Apple · 2023-11-03T00:00:00.000Z · iOS 11.2.1 — Released December 13, 2017

    Back to text ↑
  2. About iOS 11 Updates

    Apple Support · Apple · 2023-11-15T00:00:00.000Z · iOS 11.2.1

    Back to text ↑
  3. About the security content of iOS 11.2.1

    Apple Support · Apple · 2023-11-03T00:00:00.000Z · iOS 11.2.1 — security content

    Back to text ↑
  4. About the security content of iOS 11.2.1

    Apple Support · Apple · 2023-11-03T00:00:00.000Z · iOS 11.2.1 — HomeKit; CVE-2017-13903

Release changes

Changed in this release

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