I upgrade to Unity 5.1 and now my app ask for this new permission:
“Read phone and status and identity”
I check in the build settings and I can’t find what cause that. And I’ve check all the release notes for 5.1 and I didn’t see anything about that.
It’s a new permission set by default? Or something else?
+1
Wish it wasn’t there. No idea what’s using it. Maybe something to do with new Unity analytics info they gather (even though I’ve chosen to disable stats from being collected)?
+1 
There are several threads about this issue, this is one…
I decided to reimport my projects in Unity 5.0 which does not automatically add the permission. I do not want to release a game for kids with this permission. It was not fixed in 5.1.1 and the latest patch release 5.1.1p1,