Cpanel Release Tiers
cPanel has released publicly in 4 tiers:
* STABLE
* RELEASE
* CURRENT
* EDGE
This scheme allows rapid development and quick availability of new versions of cPanel & WHM. Server admins can select a cPanel & WHM tier.
STABLE Has received considerable public exposure, testing, and verification. Published least frequently.
RELEASE Similar to STABLE, but has received slightly less testing. Updated more often than STABLE. New installations default to RELEASE. Published more frequently than STABLE.
CURRENT Tested and verified, but may not contain all proposed functionality of a release. Similar to the “release candidate” tier used under other publication schemes.
EDGE Has received only rudimentary testing. Features are subject to further modification. Usually lacks official public documentation.
Due to the dynamic nature of EDGE builds, you should only use EDGE for compatibility and functionality testing in a controlled environment. Do not use the EDGE tier on production servers.
Reference: http://cpanel.net/
Updating the PHP instance used by cPanel
PHP used by cPanel
To update the PHP instance used by cPanel, run
/usr/local/cpanel/scripts/makecpphp
from the command line.
Will manually updated MySQL,work with cPanel & WHM?
Yes, but you will need to disable MySQL updates on the Update Preferences screen:
1. Go to Main >> Server Configuration >> Update Preferences.
2. Under cPanel Package Updates >> mysqld, click Never.
3. Click Save at the bottom of the page.
There may be compatibility problems with any software you choose to install manually.
Cpanel only supports MySQL versions that they supply with cPanel & WHM.
How to update or change the version of MySQL in Cpanel?
To update MySQL, run
/usr/local/cpanel/scripts/mysqlup
from the command line.
To change the MySQL version, go to Main >> Software >> MySQL Upgrade in WHM.
How to update Apache in Cpanel Servers?
The EasyApache (Apache Update) feature is responsible for updating Apache (along with other applications and libraries).
We must update Apache manually. Apache will not update when you run /scripts/upcp.
Find and use EasyApache:
WHM (in browser) Main >> Software >> EasyApache (Apache Update)
Command line /scripts/easyapache
Whenever you run EasyApache, you are prompted to select the version of Apache you wish to use. If you choose a new version number, EasyApache will update Apache accordingly. It may be important to check back frequently as new Apache builds become available.
Reference: http://cpanel.net