Do I tell my FWB about my dating updates?

I have a relationship with a man that is long distance, not committed, and that doesn’t have any promise of a defined future as a couple. We still sleep with each other when we see each other, we sext, and we communicate often. It’s a good friendship ++. I want to keep the friendship. I’m dating, nothing significant yet. My question is, at what point do I tell my fwb about the dating updates? The play by play or when something significant develops and pot relationship needs to shift to just friends? Idk if he’ll really be cool with it, though we’ve talked about his hypothetical in the past. I want to respect and keep our friendship, and be honest. Help!