On Thursday, Apple released iOS 6.1.4 (10B350). It’s only for the iPhone 5, and the only listed change is an updated speakerphone audio profile. Just like 6.1.3, there’s not currently an untethered jailbreak, so avoid it if that’s your thing.
iPhone 5 AT&T GSM – iPhone5,1_6.1.4_10B350_Restore.ipsw
iPhone 5 Verizon CDMA / International GSM – iPhone5,2_6.1.4_10B350_Restore.ipsw