For general app upgrade guidance, see Atlassian's Updating Add-ons guide.
We strongly recommend undertaking
- a practice upgrade in a development or test environment first in order to identify any potential problems
For large deployments, we also additionally recommend undertaking
- a practice upgrade in a staging environment that closely resembles the production or live environment
- then perform some acceptance tests to ensure that workflow functionality, notifications, etc. are all working as expected
Always take a full backup before updating a production or live environment.
If you run into problems, please contact Comalatech Support.