> Library inconsistencies between services? No, just no, always use the same library version for all services. Automate importing/updating the libraries if you

> Library inconsistencies between services? No, just no, always use the same library version for all services. Automate importing/updating the libraries if you need to. This answer drove me crazy in the article. "We had trouble keeping the libraries up to date and fixing breakages, so our solution was... to update them all and fix the breakages." And per your second point, tests can go both ways - if libX is used by serviceY, write a libX integration test for serviceY instead of / in addition to a serviceY integration test for libX.