Hi @Fahad ,
There is no way you can get all the details. If your team has prepared any document then you can refer them. However, you can view the upgrade history in the system information page in JIRA for the modified and removed files.
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events