Download iOS 8.4.2 IPSW for iPhone, iPad and iPod Touch

Signed IPSWs

Apple is still signing the following firmwares. You can restore to this firmware via iTunes.
Device
Version (Build)
Release Date
Size
File name
Apple TV 3 (2013)
(AppleTV3,2)
8.4.2 (12H606)
Dec 12, 2016
0.86 GB
AppleTV3,2_8.4.2_12H606_Restore.ipsw
Apple TV 3
(AppleTV3,1)
8.4.2 (12H606)
Dec 12, 2016
0.86 GB
AppleTV3,1_8.4.2_12H606_Restore.ipsw