[HWR_14]

They definitely changed it before 2017. I know it existed in 2016, but I don't know how early they did it.

It wasn't (and isn't) well publicized. But "side load to your phone is hard" is a way to lock it away from your grandparents and to power users only.

[Teknoman117]

Okay, I dug around, was actually a bit hard to find. They started allowing "free local provisioning" in 2015. You have to reload your app to the device every week though. So it's not exactly the side loading experience you get with Android.