Purchased 360 digital version and not seeing free upgrade on the one.

Sorry but the Far Cry content cannot be upgraded to the Xbox One. If it's meant for the 360 then that is what it must be used for.

However, if you have a digital copy of Destiny that was originally purchased on the 360 then you can upgrade to the Xbox One for free. The same goes for the DLC (releases tomorrow). If you purchase it on the 360 you get a free upgrade to the Xbox One version.

The free upgrade for Destiny is only available until January 15.

Supports to busy trying to figure out which button powers on their PCs

so that we get it on both for the same price rather than having to buy it twice. im in the same boat - it just says "unavailable" on the store.

I spent ages trying to find info on this as my misses is at home waiting to play it on the Xbox One using my account as I purchased it on the 360. A guy from Microsoft Support called me by requesting it and let me know they class this as a "known" issue
and should be resolved in a few hours but only after he was going to get me to remove my profile and power off my console etc. to see if that was causing the issue first.

I'm guessing it's to allow the pre-orders more time so it's only gonna become available at 9am somewhere in America which so far seems to be getting further and further west! Meanwhile, she's just finished the first mission on the 360 vesrion... probably
using my account since there's no family sharing on the 360!

I've got a feeling that we will only be able to download it on to our Xbox Ones tomorrow.