IPWS overview

For the most recent ipws downloads go to https://ipsw.me

Old list:

IPSW 3.0.0

IPSW 3.0.1

IPSW 3.1.0

IPSW 3.1.2

IPSW 3.1.3

IPSW 4.0.0

IPSW 4.0.1

IPSW 4.0.2

IPSW 4.1.0

IPSW 4.2.1
iOS 4.2 was released as iOS 4.2.1 and this IPSW reflects that:

IPSW 4.2.6
iOS 4.2.6 IPSW is thus far only intended for CDMA iPhone 4 models:

IPSW 4.3
iOS 4.3 supports iPhone 4 and iPhone 3GS:

IPSW 4.3.1

iPhone IPSW for iOS 4.3.3

iPhone IPSW for iOS 4.3.4

iOS 4.3.5 IPSW for iPhone

iOS 5 IPSW

iOS 5.0.1 IPSW

iOS 5.0.1 9A406 IPSW

iOS 5.1 IPSW

iOS 5.1.1 IPSW

iOS 6.0 IPSW

iOS 6.0.1 IPSW

iOS 6.1 IPSW

The MacObserver

TUAW