Microsoft has pushed out new firmware updates for both the Surface 3 and the Surface Pro 3. The updates are available now and can be downloaded by searching for updates with Windows Update.
At the time of this post, Microsoft has not released what is new in this release; once they let us know, we will add here.
While didn't expect there to be any issues with this update as it installed on both of my Surfaces without any issues, as noted in the comments, some users are running into 0x80246013; let us know if this is happening to you.