Yes you still pay them into your bank no problem. I have several hundred to pay into my account from 2019. The new pound coins with 12 sides have a very slight increase in conductivity i think because they are just a tad bigger and probably had a few changes to the metal "mix" . The old round ones (and the new ones) have a unique tone and with practice i have a 90% success rate at knowing it's a pound coin before digging, the only targets that can fool me and the explorer are the occasional aluminium screw cap. The numbers that virtually guarantee a pound coin is most likely under the coil are 6 - 26 or 7 - 27. Other numbers to look for and easy to remember is a 9 - 9 often a 50p coin , dreaded pull tabs are close in numbers to the 50 p so i dig tabs too. (For uk hunters only or USA guys visiting us! )