If you wanted to you could spin up new clusters of every changed service and direct traffic such that every version of a service is a separate cluster. Then sl

If you wanted to you could spin up new clusters of every changed service and direct traffic such that every version of a service is a separate cluster. Then slowly redirect external traffic to new services. Every internal service would always hit the exact version it was compiled with and you only need to worry about external api compatibility at that point. Most use cases you can just get some scheduled downtown, though.