[candiodari]

And comes at one of 2 costs:

1) never change data exchange formats between trivially connected parts of the application (e.g. splitting billing and delivery address in the payment system, no way you can do that easily with microservices)

2) effectively have 3 versions of every service running essentially constantly, and at the same time. This is more work than just running 3 versions : they must also be developed so they CAN run at the same time (e.g. they must tolerate the non-existence of a delivery address in the same example)

[CraigJPerry]

#1 i dont follow, it's common and trivial to do this

#2 i dont follow at all sorry