Cpanel/WHM Update Preferences

Main >> Server Configuration >> Update Config
cPanel/WHM Updates
Automatic (STABLE tree)
Automatic (RELEASE tree)
Automatic (CURRENT tree)
Manual Updates Only (STABLE tree)
Manual Updates Only (RELEASE tree)
Manual Updates Only (CURRENT tree)
Manual Updates Only (bleeding EDGE tree)
Never Update

cPanel Package Updates
Automatic
Manual Updates Only
Never Update

Security Package Updates
Automatic
Manual Updates Only
Never Update

Build Types
EDGE Edge is the bleeding edge tree. While it has the newest features; It has undergone the least amount of testing (if any). You generally shouldn't run this build unless you need a bug fix or feature in it. Once an equivalent CURRENT or RELEASE build has been released, you should switch away from this.
CURRENT Current builds are more mature than the EDGE builds since they have been tested in a production environment.
RELEASE Release builds are the prefered builds to run. They are generally current enough to have the latest bugfixes and new features, but without the worry of new bugs being introduced.
STABLE Stable builds are for the consverative people who do not wish to run the latest release.