Drupion upgrades all its CentOS 6.3 based servers to CentOS 6.4
CentOS-6.4 is based on the upstream release EL 6.4 and includes packages
from all variants. All upstream repositories have been combined into
one, to make it easier for end users to work with.
There are many fundamental changes in this release, compared with the
past CentOS-6 releases, and we highly recommend everyone stufy the
Drupion team has thoroughly verified the changes and made sure
they do not negatively impact your DrupionOS installations. Now all that existing Drupion customers are requested to do is to login to your Webmin control panels and click on "Update Detected Operating System" under "Warning - Your system is actually running CentOS Linux version 6.4" notice.
Please create support request in your profile account at https://my.drupion.com if you are experiencing any issues due to this upgrade.