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Release record

iOS 12.0.1

Full article
Public release
Recorded milestones
1
Beta cycle
—
Average interval
—
Public release
Oct 8, 2018

Release notes

Overview

Editorial synthesis with inline references and a source ledger when citations are available.

iOS 12.0.1 was an early maintenance release for charging and Wi-Fi behavior on iPhone XS, the iPad symbol-key layout, video subtitles, and Bluetooth availability.[1]

Its security bulletin separately records two lock-screen access problems involving VoiceOver and Quick Look, both addressed by restricting the options available while a device was locked.[2]

Source ledger

References

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

  1. About iOS 12 Updates

    Apple Support · 2026-07-29 · iOS 12.0.1

    Back to text ↑
  2. About the Security Content of iOS 12.0.1

    Apple Support · 2026-07-29 · VoiceOver — CVE-2018-4380 and Quick Look — CVE-2018-4379

    Back to text ↑
  3. About the Security Content of iOS 12.0.1

    Apple Support · 2026-07-29 · Released October 8, 2018

Documented & observed

Changes in this version

Source-linked features, fixes, known issues, removals, and community-observed behavior recorded across this version’s appearances and verified builds.

Release changes

Changed in this release

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

bugFix · fixed

Subtitle and Bluetooth availability fixes

documentedconfirmed

The maintenance release addressed missing subtitles in some video apps and a separate condition that could make Bluetooth unavailable.

Recorded at Public

  1. [1] About iOS 12 Updates · iOS 12.0.1 — subtitles and Bluetooth

security · fixed

Quick Look lock-screen sharing fix

documentedconfirmed

Apple addressed CVE-2018-4379 by limiting Quick Look options on a locked device so the share function was not exposed in the documented path.

Recorded at Public

  1. [1] About the Security Content of iOS 12.0.1 · Quick Look — CVE-2018-4379

bugFix · fixed

iPad symbol-key position restoration

documentedconfirmed

Apple returned the “.?123” key on the iPad keyboard to its original location.

Recorded at Public

  1. [1] About iOS 12 Updates · iOS 12.0.1 — iPad keyboard

bugFix · fixed

iPhone XS Lightning charging fix

documentedconfirmed

Apple corrected a condition in which some iPhone XS devices did not immediately start charging after a Lightning cable was attached.

Recorded at Public

  1. [1] About iOS 12 Updates · iOS 12.0.1 — Lightning charging

security · fixed

VoiceOver lock-screen access fix

documentedconfirmed

Apple addressed CVE-2018-4380 by limiting VoiceOver options available while the device was locked, closing access to photos and contacts in the documented scenario.

Recorded at Public

  1. [1] About the Security Content of iOS 12.0.1 · VoiceOver — CVE-2018-4380

bugFix · fixed

iPhone XS Wi-Fi band fix

documentedconfirmed

The update resolved an iPhone XS reconnection issue that could select the 2.4 GHz band instead of the available 5 GHz Wi-Fi network.

Recorded at Public

  1. [1] About iOS 12 Updates · iOS 12.0.1 — Wi-Fi

Milestones

Release history

Every recorded channel appearance in chronological order. Open an appearance for any available build, scope, notes, and sources.

  1. Public release

    Public

    Source-linked recordEditorially verified

    The public iOS 12.0.1 release corrected five early charging, Wi-Fi, keyboard, media, and Bluetooth problems and fixed two separately documented lock-screen access vulnerabilities.

    Availability
    available
    Sources
    8 linked
    Open this appearance

Historical context

Cycle comparison

Pace, intervals, and duration compared with earlier releases on the same platform.

Historical avg for .0.1 releases

8 days, 3.0 milestones

Based on 1 previous iOS .0.1 releases

Previous .0.1 releases (iOS)

Previous comparable iOS releases
VersionYearCycleMilestonesAvg. Interval
iOS 5.0.120118d34d

Scroll horizontally to compare every historical field.

Official release notes