This article explains how to properly move from the Spira Jira Server dataSync to the Jira Cloud dataSync without disrupting the previously synchronized data, ensuring the data synchronization continues to function as expected.
For performance reasons, Atlassian has made breaking changes to the Jira Server API in version 9.0 (and later). This means that is you are using the Spira data synchronization plugin for Jira Server, you need to download the most recent version from our website. This also affects Jira Data Center.
Note: this does not affect Jira Cloud.