Abstract: Systems and methods as described herein may relate to the use of card pipelines in the deployment of a service and/or library change. Cards may, for example, include code and/or run-time systems that utilize the service/library component. A system such as a release controller may detect a change to a service/library component that is utilized by a plurality of cards, trigger a card pipeline to cause the execution of one or more tests, and if a test failure is attributable to the change to the service component, halt the deployment of the card pipeline, a second card pipeline (e.g., being deployed and/or tested in parallel). The order in which the card pipelines are exercised may be determined based on card quality scores generated based on quality metrics collected in association with operation of the cards over time.