Tell you what....as DAGS would say we can agree to disagree here.
We can however agree that we both think the other does not know what they are talking about.
PS
"Ten year bonds" are issued frequently...sometimes several series a year....so you have 5 year old (10 yr) bonds...9 yr old ones....and brand new ones.
The phrase a" ten yr GoC" usually refers to a basket of them...each with different coupon rates and maturity dates.
Held as an ETF in most (retail) cases...
There is no maturity...they are laddered and the  ETF rolls them over.