1. You cannot tap on any links in iMessage. You have to hold your thumb down on the link, copy it to clipboard, switch to Safari, paste
2. If someone posts a gif in an iMessage thread, it doesn't show up
3. All inbound requests for FaceTime calls seem to be automatically blocked, even when they are coming from people who are favorites in my contacts. I haven't looked into why yet. Maybe it's because I don't have their phone number saved with a `+1` prefix in my contacts?
Other than that it's hardly noticeable, and I think it's fantastic that we now have this option.