In accordance with Their EOL policy [http://go.cpanel.net/
longtermsupport], 11.42 will continue functioning on servers. However, no further updates, such as security fixes and installations, will be provided for 11.42 after it reaches EOL.
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 their knowledgeable support team can provide recommendations, migration assistance, and more.
About cPanel, Inc.
Since 1997, cPanel, Inc. has been a leading innovator and developer of control panel software for the web hosting industry. cPanel builds software that allows web host professionals to transform standalone servers into fully automated, point-and-click web hosting platforms. cPanel-licensed software allows server and website owners, along with resellers and developers, to optimize their technical resources and replace tedious shell-oriented tasks with dynamic, intuitive web-based interfaces. For more information, visithttp://cpanel.net.
Source : cPanel, Inc.