My Thunderbolt port on my mid-2011 MacBook Air 13" stopped working after I installed this update, for both Thunderbolt devices and with a display that does DisplayPort without Thunderbolt. Did anyone else experience this?
This is what it now says in System Information for that port:
Port:
Status: No device connected
Link Status: 0x7
Port Micro Firmware Version: FFFF.FF.FF
Try rebooting without any TB devices connected and then re-connect it, see if that'll help.