That sounds like a monitoring problem and nothing to do with microservices vs. monoliths. If you have 10000 replicas of your monolith, how do you know what ver

That sounds like a monitoring problem and nothing to do with microservices vs. monoliths. If you have 10000 replicas of your monolith, how do you know what version they are running? If you can answer that question then you can also answer it for 100 replicas of 100 difference services.