[Xeago]

Unless you can spin up and tear down a staging environment provisioned with data and instrumentation I too don’t believe in it. Without that you’ll be using something shared, where either one thing at a time is subjected to testing or you’re testing multiple things at once which could conflict (including falsely positive) with eachother.

Hope that provides a new perspective. If the team is small, or the product is not susceptible to concurrent development you might not have this phenomenon.

[Chyzwar]

Staging env should be (prod - 1) version. The whole point is to test thing together with other changes. Stage-environment is created to eliminated "works on my machine" problems.