Release appearance
iOS 4.2.1 iOS 4.2 GM
Recorded context
About this appearance
iOS 4.2 GM is an editorially reviewed historical archive page with 8 structured, source-backed milestone records and an explicit account of its surviving evidence boundary.
- Date
- Nov 1, 2010
- Availability
- available
- Revision
- No
Release notes
What changed
Original editorial synthesis. Linked references appear with the claims they support and in the source ledger.
Milestone identity
Apple issued the original iOS 4.2 GM on November 1. A credited publisher retained a short Apple-authored developer-note excerpt, while a separate identity report records the same milestone.[1][2]
Indexed evidence
This page indexes 8 bounded occurrences. Titles and summaries are original synthesis; source locators identify the specific evidence family behind each record.[3][4]
Evidence limits
Source ledger
References
Sources are linked to the claims they support. Publication and access dates are shown when available.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · iOS 4.2 GM identity and timing
Contemporaneous milestone identity and timing.
- Apple Releases iOS 4.2 Golden Master to Developers
MacRumors · Arnold Kim · 2010-11-01T16:54:36-07:00 · iOS 4.2 GM identity and timing
Contemporaneous milestone identity and timing.
- Apple Releases iOS 4.2 Golden Master to Developers
MacRumors · Arnold Kim · 2010-11-01T16:54:36-07:00 · AirPlay returned in YouTube
Contemporaneous observation; publisher prose is not reused.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · Xcode — Latest SDK setting
Apple-authored developer material preserved by the credited publisher.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · Audio — iPad switch behavior
Apple-authored developer material preserved by the credited publisher.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · Calendar — ICS import
Apple-authored developer material preserved by the credited publisher.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · GameKit — friend-request controller
Apple-authored developer material preserved by the credited publisher.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · GameKit — modal presentation
Apple-authored developer material preserved by the credited publisher.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · MapKit — conditional annotation views
Apple-authored developer material preserved by the credited publisher.
- Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today!
iThinkDifferent · Apple · 2010-11-02T12:40:57+04:00 · Printing — supported AirPrint devices
Apple-authored developer material preserved by the credited publisher.
Release changes
Changed in this release
Features, fixes, removals, and regressions first observed in this release record.
bugFix · fixed
AirPlay returned to YouTube playback
The GM restored an AirPlay destination that had been missing from the prior beta’s YouTube path.
- [1] Apple Releases iOS 4.2 Golden Master to Developers · AirPlay returned in YouTube
compatibility · removed
AirPrint through shared desktop printers
The GM note listed only direct AirPrint printer families, removing the earlier shared Mac-or-PC path from the documented candidate state.
- [1] Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today! · Printing — supported AirPrint devices
Release changes
Cumulative context
Broader context included for understanding, not claimed as new in this release.
compatibility · changed
iPad apps had to treat the switch as mute
Applications targeting iPad were advised to account for the physical switch’s new audio role.
- [1] Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today! · Audio — iPad switch behavior
developerApi · introduced
Xcode added a moving latest-SDK target
Projects could select a base target that followed the newest installed iOS SDK automatically.
- [1] Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today! · Xcode — Latest SDK setting
developerApi · changed
MapKit made annotation views visibility-dependent
Applications could no longer infer missing map data from an annotation view that was not currently displayed.
- [1] Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today! · MapKit — conditional annotation views
compatibility · changed
GameKit controllers required modal presentation
Leaderboard, achievement, matchmaking, and friend interfaces had to be shown modally.
- [1] Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today! · GameKit — modal presentation
developerApi · introduced
Calendar accepted ICS event files
Applications could hand calendar files to the system for direct event import.
- [1] Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today! · Calendar — ICS import
developerApi · introduced
GameKit added a friend-request composer
Applications gained a system view controller for starting Game Center friend invitations.
- [1] Apple Has Released iOS 4.2 GM & iTunes 10.1 Beta 2 To Developers Today! · GameKit — friend-request controller