An application user received an email indicating the version of the application currently in use...

EOL (end-of-life) is a term that indicates a vendor no longer supports a product. It means that the product will no longer be sold, updated or patched by the vendor, and that the users should migrate to a newer version or alternative product. AUP (acceptable use policy), EULA (end-user license agreement) and UAC (user account control) are not terms that indicate a vendor no longer supports a product. Verified References: https://www.comptia.org/blog/what-is-end-of-life https://www.comptia.org/certifications/a