Apple has released an EFI firmware update for 2012 iMac and 13" MacBook Pro models. The updates are available via Software Update or direct download at the links below. Here are the details:
MacBook Pro Retina EFI Update v1.1
This update is recommended for all 13-inch MacBook Pro with Retina display (late 2012) models. This update improves sleep performance, enhances Thunderbolt router support, fixes an HDMI display issue, and improves compatibility when using the 5GHz band in Wi-Fi.
Boot ROM or SMC Version Information: After Update is complete:
Build version: 0106.03
ROM
