"the next stage of testing is to deploy the old version of the charm (that includes the workload) and then test a charm upgrade to the new version that doesn't include the workload."
Are you deploying the same charm into the model with a different application name here?
I'm a little unclear on the steps here.
"the next stage of testing is to deploy the old version of the charm (that includes the workload) and then test a charm upgrade to the new version that doesn't include the workload."
Are you deploying the same charm into the model with a different application name here?
What is the mode of "upgrade".