So, how do you guys handle API versioning with microservices?

This microservices thing is getting big and honestly, managing API versions is becoming a pain. We tried putting the version in the URL, like v1/users, and also using headers, like Accept: application/vnd.myapp.v1+json. But both ways have their ups and downs, you know? So, what have you guys found works best for handling API versions with lots of microservices? Anything you'd tell me to definitely stay away from?