That just sounds like the shared libraries needed to make breaking changes less often. If you're going to make changes to core code, it's going to take time to get everything up to date no matter how your code is organized. In other words, shared code needs to be treated just like a third-party library/service (both from the developers and users points of view).
One view is that the difference between a service and a microservice is that a microservice can be sketched between being a local library or wrapped in an RPC server.
