I am still waiting too - unlocked 950 XL purchased from Microsoft's UK store.
I went back through this thread to look at the release history and noted the following:
950 XL NAM:
7/20 --> Lumia FW site lists FW
7/20 --> FW available via WDRT
7/26 --> FW available via OTA
6 days in total!
950 XL UK:
8/20 --> FW available via WDRT
??? --> FW available via OTA
The closest thing I could find on the Lumia firmware site is http://www.lumiafirmware.com/ser/RM-1085/guid/059X5X1. I'm still at a loss to understand as to why it takes way so long for FW to be delivered to unlocked devices. Does anyone remember the old
Lumia site that would list FW available and delivery status? Now there's a book that MS could take a page from. :)
I feel really bad for folks on AT$T as it looks like they still continue the practice of holding Windows Phone updates hostage:
https://forums.att.com/t5/Windows-Phone/lumia-950-Firmware-update/td-p/4724139/page/3
All I can say is hang in there and don't give up hope.