RedHat 7.3 or Centos 2.1

[oliver at samera.com.py (Oliver Schulze L.)]

Hi,
I have a server that have an aplication that runs on RH7.3
and in Centos 2.1

Currently, it runs RH7.3 with yum updates from fedora-legacy

My question is, should I update to Centos 2.1 or stay in RH7.3?
What are my advantages of migrating to Centos 2.1?

My concern are more about security updates in the next 2 years.

Many thanks
Oliver

-- 
Oliver Schulze L.
<oliver@xxxxxxxxxxxxx>