1. Overview
This document provides a complete guide to updating your cPanel & WHM server, including system components, services, and software packages. Regular updates ensure security, stability, and compatibility with new features.
2. Update cPanel & WHM
2.1 Update via WHM
Navigate to:
WHM » Home » cPanel » Upgrade to Latest Version
You can configure your release tier using:
WHM » Server Configuration » Update Preferences
2.2 Update via Command Line
Check your current version:
/usr/local/cpanel/cpanel -VRun the full update:
/usr/local/cpanel/scripts/upcpThis script also runs:
update-packages— updates system packagessysup— updates required OS dependencies
3. Update Apache (EasyApache 4)
EasyApache 4 updates Apache, PHP, and related libraries.
Navigate to:
WHM » Software » EasyApache 4
Click Run System Update.
4. Update Software and Services
4.1 cPAddons
Navigate to:
WHM » cPanel » Manage cPAddons Site Software
4.2 MySQL
Warning: Only MySQL versions provided by cPanel are supported.
Navigate to:
WHM » Database Services » Upgrade Database Version
4.3 Operating System Kernel
Note: You must reboot after updating the kernel.
Methods:
- Via WHM: enable Include kernel packages in System Update
- Via CLI:
yum update
4.4 Perl
Warning: Do not manually upgrade or downgrade Perl. cPanel only supports the versions it ships.
Update methods:
yum update/usr/local/cpanel/scripts/upcp/usr/local/cpanel/scripts/update_local_rpm_versions
4.5 PHP
To update Apache PHP:
WHM » Software » EasyApache 4
To update system PHP:
/usr/local/cpanel/scripts/upcp4.6 Packages
Warning: Third‑party repositories may cause conflicts.
Update packages:
/usr/local/cpanel/scripts/upcp4.7 Ruby Gems
Legacy Ruby was deprecated in version 66.
Update required modules with:
/usr/local/cpanel/scripts/upcp5. Supported MySQL Versions
Warning: MySQL 5.7 cannot be installed or selected for new systems.
| Operating System | OS Version | Available MySQL Versions |
|---|---|---|
| AlmaLinux | 8 | 8.0, 8.4 |
| AlmaLinux | 9 | 8.0, 8.4 |
| AlmaLinux | 10 | 8.4 |
| CloudLinux | 8 | 8.0, 8.4 |
| CloudLinux | 9 | 8.0, 8.4 |
| CloudLinux | 10 | 8.4 |
| Rocky Linux | 8 | 8.0, 8.4 |
| Rocky Linux | 9 | 8.0, 8.4 |
| Ubuntu | 22 / 24 | 8.0, 8.4 |
6. Supported MariaDB Versions
Warning: MariaDB versions 10.0–10.3 are deprecated and cannot be installed or upgraded to.
| Operating System | OS Version | Available MariaDB Versions |
|---|---|---|
| AlmaLinux | 8 | 10.5, 10.6, 10.11, 11.4 |
| AlmaLinux | 9 | 10.5, 10.6, 10.11, 11.4 |
| AlmaLinux | 10 | 10.11, 11.4 |
| CloudLinux | 8 / 9 | 10.5, 10.6, 10.11, 11.4 |
| CloudLinux | 10 | 10.11, 11.4 |
| Rocky Linux | 8 / 9 | 10.5, 10.6, 10.11, 11.4 |
| Ubuntu | 22 / 24 | 10.6, 10.11, 11.4 |
7. System User Accounts in cPanel & WHM
These system accounts support internal services and background processes.
| Account | Description | OS User | Added by cPanel | Third‑Party |
|---|---|---|---|---|
| clamav | Manages ClamAV antivirus | ✓ | ||
| cpanel | Manages core cPanel services | ✓ | ✓ | |
| cpanelanalytics | Manages cPanel Analytics | ✓ | ||
| cpanelcabcache | Manages SSL CA cache | ✓ | ||
| cpanelconnecttrack | Manages p0f fingerprinting | ✓ | ||
| cpanellogin | Handles cPanel logins | ✓ | ||
| cpaneleximfilter | Manages Exim mail filtering | ✓ | ||
| cpaneleximscanner | Scans outbound mail | ✓ | ||
| cpanelhorde | Manages Horde webmail | ✓ | ||
| cpanelphpmyadmin | Handles phpMyAdmin requests | ✓ | ||
| cpanelphppgadmin | Handles phpPgAdmin requests | ✓ | ||
| cpanelroundcube | Manages Roundcube webmail | ✓ | ||
| cpanelrrdtool | Manages RRDTool | ✓ | ||
| cpanelsolr | Manages Apache Solr | ✓ | ||
| dovecot | Manages Dovecot mail service | ✓ | ||
| nobody | Handles unprivileged script execution | ✓ | ||
| root | Main system administrator account | ✓ |
Conclusion
This guide covers all essential aspects of updating your cPanel & WHM system, supported database versions, and system user accounts. Following these practices ensures a secure, stable, and fully compatible hosting environment.