Since the voice assistants' inception, you've had to say 'Hey Siri' in order for Siri to activate, and for things to happen. In Mark Gurmans Newsletter, however, we learn that there may be a possibility that Apple will "drop the 'Hey' from 'Hey Siri'."
The change is something to look out for later today at the WWDC show, along with a bunch of other new features and even products, like the rumored Apple VR headset.
