[CentOS] centos version numbers

Hi,

I am running centos 4.2 version on my server. The /etc/redhat-release file lists centos 4.4 (final). In my Plesk server administration it also shows centos 4.2. I need to upgrade plesk and am suppose to have centos 4.3 to do this upgrade.

In the past I have run "yum update" and the OS was always updated to the next version but this no longer works on my server. When I try yum update or yum upgrade there is nothing to update.

I have checked some of the files from the centos mirror site for version 4 and it seems I have the same versions on my server. http://mirror.centos.org/centos/4/os/i386/

So would I have the most recent centos version?

Sincerely, Melinda Odom Design Hosting, Inc. www.designhosting.biz 479-471-0891