Release record

iOS 3.1

Full article
Public release
Recorded milestones
1
Beta cycle
Average interval
Public release
Sep 9, 2009

Release notes

Overview

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

Apple’s dated records place iPhone OS 3.1 on September 9, 2009. Apple’s launch material ties it to home-screen organization in iTunes, more selective media and photo syncing, Genius Mixes and Genius for Apps, direct ringtone purchases, MobileMe remote lock, and anti-phishing protection.[1][2][3]

The matching security advisory covers crafted audio, Exchange passcode policy, deleted mail in Spotlight, recovery-mode access, SMS resilience, password display, credential leakage, cross-site scripting, code execution, and deceptive internationalized URLs. Claims specific to iPod touch are not generalized to every iPhone.[4][5]

Source ledger

References

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

  1. Apple Premieres iTunes 9

    Apple Newsroom · 2009-09-09T00:00:00Z · Improved syncing and iPhone Store ringtones

    Back to text ↑
  2. Apple security updates (15-Jan-2008 to 03-Dec-2009)

    Apple Support · Apple · 2026-07-30 · iOS 3.1 — 09 September 2009

    Back to text ↑
  3. Apple Introduces New iPod touch Lineup

    Apple Newsroom · 2009-09-09T00:00:00Z · iPhone 3.1 features and update availability

    Back to text ↑
  4. About the security content of iOS 3.1 and iOS 3.1.1 for iPod touch

    Apple Support · 2009-09-09T00:00:00Z · iOS 3.1 security content

    Back to text ↑
  5. Apple Introduces New iPod touch Lineup

    Apple Newsroom · 2009-09-09T00:00:00Z · iPod touch product and pricing qualifications

    Back to text ↑
  6. Apple Introduces New iPod touch Lineup

    Apple Newsroom · 2009-09-09T00:00:00Z · iPhone 3.1 features

  7. Apple Premieres iTunes 9

    Apple Newsroom · 2009-09-09T00:00:00Z · iPhone OS 3.1 integration

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

Precut ringtone purchases

documentedconfirmed

The iPhone store offered more than twenty thousand precut ringtones for individual purchase at launch.

Recorded at Public

  1. [1] Apple Premieres iTunes 9 · iTunes Store on iPhone

security · changed

MobileMe remote lock and anti-phishing

documentedconfirmed

Apple identified MobileMe remote lock and anti-phishing behavior as part of the 3.1 software, with service and device applicability preserved.

Recorded at Public

  1. [1] Apple Introduces New iPod touch Lineup · iPhone 3.1 software features

enhancement · changed

More selective media and photo syncing

documentedconfirmed

Apple added music selection by artist and genre plus photo selection by Events and Faces, alongside broader media-sync improvements.

Recorded at Public

  1. [1] Apple Premieres iTunes 9 · Improved syncing with iPhone OS 3.1

enhancement · changed

Home-screen app organization in iTunes

documentedconfirmed

iTunes 9 could organize an iPhone home-screen app layout and reproduce the arrangement during synchronization.

Recorded at Public

  1. [1] Apple Premieres iTunes 9 · Improved syncing with iPhone OS 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

    The public iPhone OS 3.1 release expanded iTunes organization, syncing, recommendations, ringtones, MobileMe controls, and anti-phishing behavior while repairing audio, enterprise, mail, recovery, telephony, password, and web security defects.

    Availability
    available
    Sources
    21 linked
    Open this appearance

Historical context

Cycle comparison

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

Historical avg for .1 releases

47 days, 5.2 milestones

Based on 21 previous iOS .1 releases

Previous .1 releases (iOS)

Previous comparable iOS releases
VersionYearCycleMilestonesAvg. Interval
iOS 26.1202542d68d
iOS 18.1202491d1010d
iOS 17.1202328d75d
iOS 16.1202240d77d
iOS 15.1202134d67d
iOS 14.1202027d

Scroll horizontally to compare every historical field.

Official release notes