A few minutes ago Apple released Thunderbolt Firmware Update through its downloads website and the desktop Software Update control panel, targeting all machines running the recently introduced Thunderbolt I/O connectivity standards. Until today, Apple has released new MacBook Pros and iMacs featuring the Thunderbolt technology from Intel. The update brings “performance and stability fixes”.
This update provides Thunderbolt performance and stability fixes.
When your computer restarts a gray screen will appear with a status bar to indicate the progress of the update.
Do not disturb or shut off the power on your computer during this update.
Apple’s release notes don’t specifically mention the targeted machines so we assume it applies to all 2011 Macs with at least a Thunderbolt port. The new MacBook Airs rumored to be getting a Sandy Bridge and Thunderbolt update later this month or in July will likely come with these fixes pre-installed, so if you need to download the patch now go ahead and pull the 486 KB package from Apple’s website.