How to Import Data from an Older Version of Jira
Since version 2.4.7 of Project Configurator, we introduced the ability to allow data to be migrated into a new version of Jira than the version of Jira the data was exported from.
To import data from an older version, you need to ensure you check the Allow Data Import From Different Jira Versions checkbox on the import screen, as described in the Import Options for Complete Projects section of Import Options.
|We can not guarantee how data will import when using different versions of Jira, Jira Software, and Jira Service Desk. We advise upgrading both the source and target instances to the same version to guarantee the data will migrate cleanly.|