Hi, everyone--
Installing the latest Windows Insider Fast build (14936) should get you a Gadgets app update, in which you should see the dock. It took a little while for my phone to get the update, so it may not be instantaneous. Let me know how it goes!
Thanks!
-Darcie
Hi
I am running build 14393.221 with insider release preview set. My gadgets app updated over the weekend to version
4.4.1609.2000 4.3.1608.28000
Hope this helps
Ewan