Thunderbolt 1.2.1 update adds Ethernet adapter support
 

Got your fancy new Retina MacBook Pro? Eying up one of those Thunderbolt to Ethernet adapters? Well, Apple's just released a software update that adds support for the nifty peripheral. That's the main purpose of this latest version -- 1.2.1 -- according to the company's website. However, there are reports suggesting it also resolves a boot-related issue that was affecting certain users, caused by a previous update. If this was affecting you, or you're running OS X 10.7.4, then make a dash for that source link.

http://www.engadget.com/2012/06/19/t...apter-support/