AutoSSL is the solution to one of the biggest pain points that exists for every cPanel & WHM user: SSL installation and renewal. With AutoSSL that pain goes away. There are no more forms to fill out, and no more certificates to manually copy into place. Once you enable AutoSSL, your websites are automatically secured with a free, Domain Validated SSL certificate. Perhaps more exciting is the fact that your coverage will never lapse, because at expiration time a new, free SSL is requested and automatically installed.
AutoSSL was introduced as a new feature in v58, but if you’re still running CentOS 5 or CentOS 6 32-bit, you won’t be able to take advantage. cPanel & WHM v56 is the last to support CentOS 5. If you want the benefits of AutoSSL, it’s time to migrate!