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Release record

iPadOS 15.4

Full article
Public release
Recorded milestones
7
Beta cycle
46d
Average interval
8d
Public release
Mar 14, 2022

Release notes

Overview

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

Release overview

iPadOS 15.4 was publicly released on March 14, 2022. iPadOS 15.4 introduced Universal Control and expanded communication, Siri, keyboard, camera, and volume-control behavior.[1][2]

Universal Control was the defining iPad feature, allowing a nearby Mac’s keyboard, mouse, or trackpad to work across supported Macs and iPads.[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 15.4 and iPadOS 15.4

    Apple Support · Apple · 2023-10-31T00:00:00.000Z · iOS 15.4 and iPadOS 15.4 — Released March 14, 2022

    Back to text ↑
  2. About iPadOS 15 Updates

    Apple Support · Apple · 2026-05-28T00:00:00.000Z · iPadOS 15.4

    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.

feature · introduced

Universal Control

documentedconfirmed

The release added cross-device pointer and keyboard control, including drag-and-drop between supported devices.

Recorded at Public

  1. [1] About iPadOS 15 Updates · iPadOS 15.4 — Universal Control

enhancement · changed

New emoji and Siri voice options

documentedconfirmed

New emoji arrived with an additional Siri voice and more offline time-and-date responses.

Recorded at Public

  1. [1] About iPadOS 15 Updates · iPadOS 15.4 — Emoji and Siri

enhancement · changed

Rotation-aware controls and input refinements

documentedconfirmed

The update refined physical controls and text-entry workflows across supported iPads.

Recorded at Public

  1. [1] About iPadOS 15 Updates · iPadOS 15.4 — Volume controls, Camera, Keyboard, and Scribble

Milestones

Release history

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

  2. +12 days
  3. +7 days
  4. +7 days
  5. +7 days
  6. +7 days
  7. +6 days

    Public release

    Public

    Full articleEditorially verified

    iPadOS 15.4 reached the public release channel on March 14, 2022. iPadOS 15.4 introduced Universal Control and expanded communication, Siri, keyboard, camera, and volume-control behavior. This article records the public appearance only and does not attribute cumulative notes to an earlier beta.

    Availability
    available
    Sources
    6 linked
    Open this appearance

Historical context

Cycle comparison

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

Historical avg for .4 releases

40 days, 6.3 milestones

Based on 6 previous iPadOS .4 releases

Cycle vs. platform average

46d (avg: 50d)

4 days shorter than the iPadOS average

Duration ranking

#20 of 46

Middle of the pack iPadOS beta cycles

Longest gap in this cycle

12 days

Between Beta 1 and Beta 2

Previous .4 releases (iPadOS)

Previous comparable iPadOS releases
VersionYearCycleMilestonesAvg. Interval
iPadOS 26.4202636d76d
iPadOS 18.4202538d76d
iPadOS 17.4202440d77d
iPadOS 16.4202339d68d
iPadOS 14.4202141d414d
iPadOS 13.4202048d78d

Scroll horizontally to compare every historical field.

Official release notes