The system is regularly changed by shopware without there being a proper roadmap for it.

Apparently interfaces are changed instead of deprecating them and ensuring a transition phase, at least that's how I have to understand the warnings that are issued in the shop when enhancements are made. It is completely unacceptable from the customer's point of view if sufficiently large transition phases are not observed in which all providers can adapt to innovations/changes. Never touch a running system" feels like tinkering with Shopware, and in the meantime we have the same concerns about the stability and availability of our shops as we did with VersaCommerce.