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Release record

iOS 15.3.1

Full article
Public release
Recorded milestones
1
Beta cycle
—
Average interval
—
Public release
Feb 10, 2022

Release notes

Overview

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

Release overview

iOS 15.3.1 was publicly released on February 10, 2022. iOS 15.3.1 paired a Braille-display responsiveness fix with a WebKit security correction.[1][2]

Apple said the WebKit issue might have been actively exploited, making the security change the defining part of this small release.[1][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 15.3.1 and iPadOS 15.3.1

    Apple Support · Apple · 2023-11-02T00:00:00.000Z · iOS 15.3.1 and iPadOS 15.3.1 — Released February 10, 2022

    Back to text ↑
  2. About iOS 15 Updates

    Apple Support · Apple · 2026-05-28T00:00:00.000Z · iOS 15.3.1

    Back to text ↑

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

Braille display responsiveness

documentedconfirmed

The maintenance update corrected an issue that could leave connected Braille displays unresponsive.

Recorded at Public

  1. [1] About iOS 15 Updates · iOS 15.3.1

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

    Full articleEditorially verified

    iOS 15.3.1 reached the public release channel on February 10, 2022. iOS 15.3.1 paired a Braille-display responsiveness fix with a WebKit security correction. This article records the public appearance only and does not attribute cumulative notes to an earlier beta.

    Availability
    available
    Sources
    3 linked
    Open this appearance

Historical context

Cycle comparison

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

Official release notes