Changing the cloud instance URL address or migrating to a new cloud instance
Platform Notice: Cloud Only - This article only applies to Atlassian products on the cloud platform.
Updating URLs is available for sites that have at least one Jira or Confluence product with a Standard, Premium, or Enterprise plan. You’re unable to update the URL if the site has only Jira Free and Confluence Free.
Please read our self help documentation on how to Update a product URL.
For migrating data between cloud sites please see this KB article.