It's interesting to see Hamburger menus bleeding back into the design language with Windows 10. It seems a strange, sad concession to meeting Android/iOS designs and even Desktop designs (with their million year old menu bars) "half-way". That said, one of the interesting twists that Windows 10 designs thus far tend to put on the Hamburger menu is that secretly in many cases the Hamburger icon is just a replacement for the Windows Phone 8's App Bar ellipsis:
The items on the bar show just icons at tablet size or lower and the Hamburger simply reveals app labels and maybe (rarely) lesser used text-only options. (At larger than table sizes sometimes the bar defaults expanded rather than condensed.)
This roughly corresponds with the Facebook suggestions in the article here.
The interesting differences to a WP8 app bar are that the W10 hamburger "app bars" have mostly gone vertical and the hamburger is a toggle rather than the WP8 app bar ellipsis was a "slide".
It will be interesting to see how this design language continues to accrete/evolve as Windows 10 Mobile gets closer to launch.