Can the other person still see the message I delete on my phone

Scox9876 wrote:

does The new OS delete it from receiver?

No.

Once sent, a message sent with the Messages app is gone from your control.

You cannot delete a message sent elsewhere.

That ability would quickly become a spectacular means of harassing folks, too.

So... now that we’ve all told you “no” several times, why are you asking this particular question?

No.

Scox9876 wrote:

does The new OS delete it from receiver?

No, once sent, it is out of your control.

• You don't owned the message you sent anymore
• You can only delete from your own devices.

No, when the message is sent, it is out of your control.

{in addition to above}

And even if it did delete, they could well have screen-shotted the message.