Some of you might have noticed that Fedora 11 and up already have an up to date Drupal6 version, but EPEL , which is what a lot of people are using on their CentOS or RHEL builds only has a Drupal5. I asked Jon Ciesla, who is maintaing the Drupal packages in Fedora why :
Because when Drupal was initially built for EL-5 and EL-5, the 5.x
branch was the current release. It's up to date, 5.20 is the most
recent release, and is still supported upstream in terms of security
fixes. 6 is out, and has been for awhile, but we have the following:
Since 5.x isn't broken or insecure, it'll be a tough sell to move to
6.x. Once upstream drops support, this may change.
It's a correct answer from a Distribution point of view, but the fact is it is widening the gap between the Ops and the Devs. If the ops want to keep their platform clean we need to have our software packaged on the platform we want to use, which is most often an Enterprise Linux distro, on the other there is understandably no hair on a dev's head that he will be building a new site on a Drupal 5 platform.
So until the Drupal community doesn't declare Drupal 5 dead, RHEL and CentOS users will have to use 3rd party Drupal6 RPMS , or rebuild the F12 rpm from Source again .