Hi!
We need to migrate a couple of JIRA projects (few thousands issues) from the old JIRA installation (v4.4.4, to be dismissed) to the new one (v5.2.5), where we have already another couple of tiny projects in place.
In the old JIRA instance we have no major customizations (i.e. custom fields, workflows, permissions) but issue do have information (like attachments, worklog, etc) that we want to preserve.
I was looking over internet to find the proper (minimal but complete) procedure to safely execute the migration but I haven't found any.
Could you please suggest one?
Thanks a lot,
Simone