Where did the "Invite" user to topic button go?

I just updated my Discourse forums to 2.4.0.beta5 and the “Invite” button at the bottom of topics is gone. I didn’t change any CSS that might impact the display of the button, my trust level is still 4, and my “max topic invitations per day” admin setting at Join a Family of Multipotentialites and Build a Life Around ALL Your Interests is still 50.

Here’s what my topic options look like now at the bottom of topics:

I’d be grateful if someone could tell me where the “Invite” button went and how I get it back.

The Invite button is now inside the modal window that opens when you click the Share button:

Well how about that. Thanks Simon!