What are the Confluence on-prem Data Center versions? What are long term support versions?

We are working on plugin for Atlassian Data Center Edition. To check the compatibility of the plugin with available versions need to know what are the long term support version of confluence on-prem , what are latest and what are getting deprecated.

On this page you can see the Versions of Confluence (including LTS) supported by Atlassian: Atlassian Support End of Life Policy.
Hope this helps!