Thoughts on Backward and Forward Compatibility
Compatibility is hard. Depending on the nature of your component/service it could be very unstable by nature. Let's consider an Adapter Pattern for instance or APIs that integrate 2 other APIs, easily they will be breaking on every API change at any side. Even with mundane, regular APIs and Services, compatibility can be very hard to achieve. So, what should we do? Break all the things all the time? Be backward compatible with all versions forever(Which there are a huge price and source of complexity) or maybe there is a middle ground approach we could take? Backward compatibility is only one part of the story the whole compatibility story is much more complex involving Forward compatibility, Isolation, Interfaces, and lots of subtle details. There are the different contexts where software can live so under a microservices in one thing, shared application code is another, shared lib or company framework is completely different stories as well. IMHO at the scale, it does not matte...