Google has created a new firewall chain to support the restricted networking mode. Only apps that have the use restricted networks permission will be allowed to use the network.
Twitter, via a Tweet from its official Twitter Support account has confirmed that it is rolling out the new share menu to all its users on its Android app.
This was spotted a week ago in official support threads as well where people did complain about it but wasn’t sure if this was a test, bug or an official roll out.