Hi everyone! 
Two questions I have: 

1. Can you share your experience about testing SMW-based systems? For example now we're upgrading all the versions of MediaWiki, SMW and other extensions and we're getting very alarmed how to ensure if the result works without errors. Intuitively for manual testing we need the set of pages, properties and forms that uses all features of SMW-extensions. Does anybody have such a test case? Or can we use another testing strategy? 

2. We want to use the latest wmf version of MediaWiki as the base platform of our wiki. Is this a wise idea in your opinion or should we use the stable version?

Sincerely yours,
Yury Katkov