Dating a great guy and keep current sex buddies?

Hi all:
This might sound weird but I decided to ask your opinion.
I met a great good guy and we have been dating for almost 1.5 months. It’s been great and I am happy and excited with him. We are out of apps and as far as I know he is not dating anyone neither do I. I have a couple of existing sex buddies which I know for a while since I hade been single for 3 years. I am not sure if I should let them go or Keep them while I am single. Not going to lie I’ve had sex with them since I started dating this guy. It’s just a different connection With them , just sex and I am willing to let It go if this guy and I become something more solid than just dates. My guy and I have not had a conversation about boyfriends but we have assured each other “things are going in the right direction”. I have no idea if he has other sex buddies as well. We have agreed and both believe that when in a relationship, monogamy is a must for both and that’s awesome. I’d be willing to let go my sex buddies for sure in the blink of an eye.
Let me know your thoughts.

First, let me write that I'm glad I'm out of the dating game/scene. I've been married for ten years. Second, I think this is a discussion that you should have with this guy you're dating. I've been in a similar situation in the past, so I understand. It can often be difficult to "let go" of sex buddies, especially when the sex and the dick are amazing. Good luck!