[CentOS] what people really mean when they say they're running "5.3"?

[John R Pierce]

  On 08/08/10 9:11 AM, Robert P. J. Day wrote:
>    when i asked the organizer to identify the specific version of RHEL
> that was being used at the client site, i was told 5.3 so i can easily
> install 5.3 on the classroom machines, but i'm curious about something
> and i'll have my contact look into it:  if people *initially* install
> 5.3, is it standard behaviour to still regularly upgrade as new
> releases come out?

sadly, I find far too many people who installed RHEL x.y, but don't have 
an RHN subscription so they NEVER UPDATE THE SYSTEM.