My company just upgraded to 15.4 and would like upgrade again in the next couple months to 15.6. I am looking for some feedback as to the amount of time, cost and effort for an upgrade. Is there anyone that can provide some approx details on this type of an effort, during our upgrade (13.2 to 15.4) we removed almost all of the customization with exception to our processes and job on the backend.
Also anyone with knowledge on patches and how long those take would be beneficial.
Sr IT Analyst