cPanel & WHM 11.48 is set to reach End of Life at the end of January 2016.
In accordance with our EOL policy [http://go.cpanel.net/longtermsupport], 11.48 will continue functioning on servers. However, no further updates, such as security fixes and installations, will be provided for 11.48 after it reaches EOL.
We recommend that all customers migrate any existing installations of cPanel & WHM 11.48 to a newer version (either 11.50 or 11.52).
If your server setup complicates the process of migrating to a newer version of cPanel & WHM (an upgrade blocker list is available at http://go.cpanel.net/blockers), then cPanel is here to help. Simply open a support ticket at https://tickets.cpanel.net/submit so that our knowledgeable support team can provide recommendations, migration assistance, and more.
For the PGP-signed message, see 11.48 60 day notice signed.