Surface Pro and Surface Pro 2 haven't seen new firmware updates since mid-2015. But this week, Microsoft unexpectedly shipped new firmware updates for each machine.

As you may have heard, Microsoft admitted earlier this week that it will be undergoing a voluntary recall for all Surface Pro power cords sold before July 15, 2015. If you own such a cord, you should have it replaced (for free). Here's how.

ZDNet's Mary Jo Foley has confirmed that Microsoft will soon issue a recall for Surface Pro, Pro 2 and Pro 3 power cords. Apparently, these cords can develop issues when they become too tightly wound. (This recall does not concern the entire power adapter.)

The latest firmware updates are available for the Surface lineup, with only two of the devices—Surface Pro 2 and 3—seeing updates, and only for Windows 10.

This week, Microsoft issued firmware updates for its most recent Surface models—Surface 3, Surface 3 (4G LTE) and Surface Pro 3—as well as Surface Pro 2.