Apple is about to change the game! According to Business Insider, the messages will be retracted through iMessage. Apparently once the message is retracted, a notification with very fine print will pop up in the conversation notifying everyone involved that the message was unsent.
The new feature is reportedly set to be a part of the next iOS update for iPhone users. Additionally there will be a new Slack-like mention system that would allow users to tag other contacts with their name like @Jack or @Mary. When you type the @ sign, a list of suggested contacts would appear. This would be particularly useful in busy group chat conversations, as it would be possible to enable the “Hide Alerts” setting and only receive push notifications when you are mentioned directly.