Where can I download iOS 8.x firmware / IPSW files for the iPhone 5?

The iPhone 5 originally shipped with iOS 6. When it comes to iOS 8, here are links to the official IPSW files for the iPhone 5.

iPhone 5 (AT&T / GSM) iOS 8.1.1: iPhone5,1_8.1.1_12B435_Restore.ipsw
iPhone 5 (GSM & CDMA) iOS 8.1.1: iPhone5,2_8.1.1_12B435_Restore.ipsw

iPhone 5 (AT&T / GSM) iOS 8.1.0: iPhone5,1_8.1_12B411_Restore.ipsw
iPhone 5 (GSM & CDMA) iOS 8.1.0: iPhone5,2_8.1_12B411_Restore.ipsw

iPhone 5 (AT&T / GSM) iOS 8.0.1: iPhone5,1_8.0.1_12A402_Restore.ipsw
iPhone 5 (GSM & CDMA) iOS 8.0.1: iPhone5,2_8.0.1_12A402_Restore.ipsw

iPhone 5 (AT&T / GSM) iOS 8.0.0: iPhone5,1_8.0_12A365_Restore.ipsw
iPhone 5 (GSM & CDMA) iOS 8.0.0: iPhone5,2_8.0_12A365_Restore.ipsw