I was confused about why my new server had CentOS 5.9 installed on it, when CentOS 6.3 is available.
But CentOS 5.9, it turns out, is actually the latest release.
Why are 5.x versions being released when they are a dead end that will lose full support barely 1 year from now?
Is there any reason to install CentOS 5.9 on a new server instead of a 6.x? Is there any reason to avoid 6.x? I assumed that 6 > 5.