[glitchinc]

After all of the iterations of iOS, there is still no way to have only the first new/unread message per SMS/iMessage thread generate a notification--particularly the notification sound or tone.

I find the feature would be useful in all situations, but would be especially useful in group threads. I don't need to hear a ding every time someone in a group thread sends a message if I don't have my phone in my hand. One ding generated when the first unread message is received will do just fine.

[patrickserrano]

Not the same thing by a long shot, but you can turn on "Hide Alerts" for group chats. My wife has all of her long running group chats set to this to prevent alerts all day when her friends are chatting.

[muhammadusman]

Yup, this has been very helpful. Coming back to 20+ messages where 50-75% of them are reactions was annoying to get alerts for.