Patch Tuesday came and went last week with no firmware updates for any of the four Microsoft Surface tablets.

On November 17, Microsoft officials shared a list of updates it planned to issue for the Intel-based Surface Pro 3, but didn't specify exactly when they'd deliver them beyond saying they'd come "in the upcoming update." The team said that customers have asked to learn about the updates for the (Surface Pro 3) device in advance of them being available," and that the list was based on that feedback.
I'm hearing Microsoft will make the mentioned Surface Pro 3 fixes available later today, November 18.