The Netflix app has been updated today to version 220.127.116.11. This refresh is the first update since early September when version 18.104.22.168 was released. The update applies to all Windows devices regardless of 8.1 or 10.
However, for those on Windows 10 there are some noticeable improvements to the UI to make the app Windows 10 focused. For instance, gone is the default Windows hamburger menu that happens when you run Windows 8.1 apps in Windows 10. Instead, there is now an ellipsis on-screen (instead of the upper left corner). Likewise, instead of making the window full-screen through the arrows on the Window taskbar users can now change modes with the player controls with a dedicated button.
Other than obeying Windows 10 UI design we are not seeing too many other changes. There is now the ability to see which version of the app you are on under Settings, which is welcomed too. If you find anything else, let us know in comments.
Thanks, Zapella T., for the tip!