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Release record

iOS 4.3.1

Full article
Public release
Recorded milestones
1
Beta cycle
—
Average interval
—
Public release
Mar 25, 2011

Release notes

Overview

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

Contemporaneous reporting preserved four items from the iOS 4.3.1 update notice: a sporadic graphics problem on the fourth-generation iPod touch, activation and connectivity trouble on certain cellular networks, image flicker with the Apple Digital AV Adapter on some televisions, and authentication failures involving some enterprise web services.[1]

The same report dates the public release to March 25, 2011. Apple’s surviving first-party security corpus independently establishes iOS 4.3.1 as the predecessor covered by the iOS 4.3.2 advisory, but Apple’s archived security index does not preserve a separate 4.3.1 entry. The structured notes therefore rely on the cited contemporary report rather than presenting that material as a surviving Apple web page.[2][3][4]

Source ledger

References

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

  1. Apple Releases iOS 4.3.1

    MacRumors · Eric Slivka · 2011-03-25T17:14:00Z · Contemporaneous reproduction of the four-item update notice

    Back to text ↑
  2. Apple security updates (2011 to 2012)

    Apple Support · Apple · 2023-08-10T00:00:00.000Z · 2011 security release chronology

    Back to text ↑
  3. About the security content of iOS 4.3.2 Software Update

    Apple Support · 2026-07-30 · Available for range through iOS 4.3.1

    Back to text ↑
  4. Apple Releases iOS 4.3.1

    MacRumors · Eric Slivka · 2011-03-25T17:14:00Z · Published March 25, 2011

    Back to text ↑
  5. Apple Releases iOS 4.3.1

    MacRumors · Eric Slivka · 2011-03-25T17:14:00Z · Contemporaneous reproduction of the iOS 4.3.1 update notice

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

Cellular activation and connectivity

documentedconfirmed

The source does not identify affected carriers or devices, so the structured claim retains the original limited scope.

Recorded at Public

  1. [1] Apple Releases iOS 4.3.1 · Cellular activation and connection item

bugFix · fixed

iPod touch graphics stability

documentedconfirmed

The preserved update notice scopes the graphics correction to occasional behavior on the fourth-generation iPod touch.

Recorded at Public

  1. [1] Apple Releases iOS 4.3.1 · Fourth-generation iPod touch graphics item

bugFix · fixed

Digital AV Adapter image stability

documentedconfirmed

The preserved notice describes a display-output correction and limits it to some television configurations.

Recorded at Public

  1. [1] Apple Releases iOS 4.3.1 · Apple Digital AV Adapter flicker item

bugFix · fixed

Enterprise web-service authentication

documentedconfirmed

No particular service or protocol is named in the surviving report, so the entry does not infer a narrower technical cause.

Recorded at Public

  1. [1] Apple Releases iOS 4.3.1 · Enterprise web-service authentication item

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 4.3.1 was a maintenance release addressing an iPod touch graphics glitch, cellular activation and connection problems, Digital AV Adapter flicker, and enterprise web-service authentication.

    Availability
    available
    Sources
    9 linked
    Open this appearance

Historical context

Cycle comparison

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