I recently became an administrator for a project that requires all 3 applications to be installed. Based off of using PostgreSQL, I started to load Jira 8.19, Confluence 7.13 and BitBucket 7.15 and had to stop at the point where it asks for the license until someone was able to obtain the licensed previously purchased. Upon entering the applicable info for serial #, etc...we were informed that we needed to use different versions for all 3. I loaded these as a fresh install and not sure of options to roll back/reinstall applicable versions or anything else regarding this. Also, this is for an offline download. Any assistance/help would be appreciated.