Evolution Archive
EN繁中

Major OS release · iOS

iOS 4

Version 4Jun 21, 201017 public releases · 16 point updates

Software history

Defining features

Feature summaries are anchored to the cited Apple first-party source.

Multitasking

iOS 4 brought Apple’s multitasking model to supported iPhone hardware.

Folders

Users could organize applications into folders on the Home Screen.

Mail improvements

Mail gained a unified inbox, threaded messages, and support for multiple Exchange accounts.

Apple feature source ↗

iPhone Software / iPhone OS / iOS

Device support

Archive-product links show the canonical products represented by this project. The full device-name list preserves the broader structured support evidence, including hardware refreshes that do not have their own archive node.

Supported archive products8 mapped products
Full device coverage11 device names
  • iPad
  • iPad 2 Wi-Fi
  • iPad 2 Wi-Fi + 3G (CDMA)
  • iPad 2 Wi-Fi + 3G (GSM)
  • iPhone 3G
  • iPhone 3GS
  • iPhone 4 (CDMA)
  • iPhone 4 (GSM)
  • iPod touch (2nd generation)
  • iPod touch (3rd generation)
  • iPod touch (4th generation)

Support dropped at this major

Device names in support data

  • iPhone
  • iPod touch (1st generation)

Public releases

Public release history

Every canonical public release assigned to this major version, including the initial release and later point updates.

2010

  1. 4.0Initial major release
  2. 4.0.1Point update
  3. 4.0.2Point update
  4. 4.1Point update
  5. 4.2.1Point update

2011

  1. 4.2.5Point update
  2. 4.2.6Point update
  3. 4.3Point update
  4. 4.3.1Point update
  5. 4.2.7Point update
  6. 4.3.2Point update
  7. 4.2.8Point update
  8. 4.3.3Point update
  9. 4.2.9Point update
  10. 4.3.4Point update
  11. 4.2.10Point update
  12. 4.3.5Point update