Hi Heather. Skyler from the Livefyre team here. Sorry we didn’t catch your question earlier!
And further apologies for any miscommunication on our end. The latest version of Livefyre’s free apps for WordPress users (including Livefyre Comments) now lives in our recently-launched “Livefyre Apps” plugin, available here:
https://www.ads-software.com/plugins/livefyre-apps/
We’ll be working to keep the Livefyre Apps plugin compatible with the most recent versions of WordPress from now on, and you should see some updated messaging go out for Livefyre Comments 3 in the near future.
Hope this helps clarify! If you have any in-depth questions about a specific setup, feel free to contact our support team via support[at]livefyre[dot]com as well.