Google adds dynamic email support to Gmail on Android and iOS
The highlight of the latest update is dynamic email, a new functionality that is now rolling out to Gmail on Android and iOS. Dynamic email lets Gmail users take action directly within a message. For example, you can respond to a comment, RSVP to an event, or manage subscription preferences directly within the email.
Now, according to Google, the rollout is starting today, but it may take more than two weeks for everyone to see the functionality on their Android and iOS devices. It's also worth mentioning that dynamic email support will be turned on by default when the functionality arrives on a compatible device.