In general, the latest version of Kantega SSO Enterprise is compatible with the oldest version that has not been ended of life. See Atlassian’s End-of-life (EOL) policy to get an overview of versions and EOL dates.
Changelog
Excerpt
Changes in 6.8.0
17:30 CET Fallback SAML/OIDC username attributes, improvements and bug fixes
Features
Introducing option to use SamAccountName as username with fallback to UserPrincipalName if SamAccountName doesn't exist for Azure AD cloud provisioning
Whitelisted domains for JSM (Jira Service Management) will no longer be listed during login if there are more than 10 domains
Bugfixes
Catch for exception that could be thrown when an attempt to create a group failed in read only directory