This article will be of interest to users of the Xibo CMS who self-host their CMS using a Let's Encrypt SSL certificate, and who use Android Players running on Android versions earlier than 7.1.1, or some older versions of webOS and Tizen.
This is a companion discussion topic for the original entry at https://xibosignage.com/blog/letsencrypt-chain-of-trust-change-2024