With version 4.0.1 for Jira and Confluence, the OpenID app is now compatible with Atlassian Data Center. 

For this release, we removed support for the OpenID 1.0 protocol as part of the changes for the data center approval.
Please note that OpenID 1.0 is not OpenID Connect/ OAuth2.

Should you still require OpenID 1.0, you can't use the data center version and you should stay at version 3.3.4 for server.

Please contact us at if you have concerns about this.