I have a JIRA project, that another team worked with, that I need to restore. Unfortunately, I have no reference to the JIRA version which was used for the project and the team that created/used it no longer exists. I do know it was setup on a Linux box and it was around version 6.2 but after installing more than 20 versions, from https://www.atlassian.com/software/jira/download-archives, and attempting to restore the project's JIRA export zip file, none have worked. Each one generated a 'wrong version' error. I opened the activeobjects.xml file but this only contained mysql version information.
1) Is there any way to identify the version of the JIRA backup from the backup?
2) Is there any way to restore the file to a newer version of JIRA if the version, that the project was backed up on, no longer exists?