We are currently using a stand alone version of JIRA 4.3 and Confluence 4.1.2. and wish to upgrade to the latest versions of JIRA and Confluence but on the Atlassian cloud.
The new versions need to have all the data from Confluence however JIRA will only need a selection of past data. We are also planning to keep JIRA 4.3 as a historical archive.
Is this possible and what is the most efficient way to do this?