Ioncube is a PHP module extension use for loads up encrypted PHP files. You have to perform following tasks  to update latest version of ioncube loader to the server.

    1. Login root of the server via SSH
    2. Download the latest version of loader
# cd /root/
# wget https://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz

3. Unpack it
4. Install on server
5. Restart Apache to see the effect
6. check new version