Where can I download iOS 7.x firmware / IPSW files for the iPhone 4S?

iPhone 4S owners looking to update their devices to iOS 7 are in luck. Apple has released the redesigned mobile operating system in the following IPSW files:

iPhone 4S iOS 7.1.2: iPhone4,1_7.1.2_11D257_Restore.ipsw
iPhone 4S iOS 7.1.1: iPhone4,1_7.1.1_11D201_Restore.ipsw
iPhone 4S iOS 7.1.0: iPhone4,1_7.1_11D167_Restore.ipsw
iPhone 4S iOS 7.0.6: iPhone4,1_7.0.6_11B651_Restore.ipsw
iPhone 4S iOS 7.0.4: iPhone4,1_7.0.4_11B554a_Restore.ipsw
iPhone 4S iOS 7.0.3: iPhone4,1_7.0.3_11B511_Restore.ipsw
iPhone 4S iOS 7.0.2: iPhone4,1_7.0.2_11A501_Restore.ipsw
iPhone 4S iOS 7.0.0: iPhone4,1_7.0_11A465_Restore.ipsw

These files can be used to update all iPhone 4S models using iTunes and a computer.