Onebux Hosting includes Softaculous, which offers the quickest and safest way to upgrade an existing WHMCS installation. We recommend using Softaculous's upgrade tool rather than WHMCS's built-in upgrader, since the built-in method runs through PHP and can time out on shared hosting.
Step 1: Access Softaculous
Log in to your hosting control panel (cPanel or DirectAdmin) and open the Softaculous Apps Installer.
Step 2: Find and upgrade your installation
In Softaculous, click All Applications (usually a top-right icon), then find your existing WHMCS installation in the list and click its Upgrade icon.
You'll be prompted for your WHMCS admin folder name — leave this as "admin" unless you previously renamed it to something custom.
Click Upgrade to start the process. It completes almost instantly since it does not rely on long-running PHP scripts.
Step 3: Finish up
Once the upgrade completes, delete the install folder inside your WHMCS directory to finish securing your installation.
