We have a JIRA 6.2.7 instance with an Oracle 10g database and we want to upgrade it to JIRA 7.1.9. We installed in one machine the new version and now we need to migrate the data; for which we made a backup in the 6.2.7 instance and we tried to import it into 7.1.9. Nevertheless, we had incompatibility issues. Which is the best mode to perform the migration of the data, importing the backup (in which we have the compatibility issues) or with a database dump?
Thanks in advance!