On Wed, Mar 5, 2014 at 6:43 PM, Stephen Harris lists@spuddy.org wrote:
No, what everyone has said is that there _are_ updates, and yum knows how to get them, even selectively.
More to the point, "6.4" and "6.5" are just markers in the sand for "CentOS 6". 6.5 is basically just a rebasing of the packages to make it easier to install; it's an accumulation of updates for 6.4 in an easy to digest form.
If you stop thinking of "6.4" and "6.5" as different OS's but as the same OS but at different parts of their patch lifecycle then it becomes a lot simpler.
I think it is really just a quirk of centos package management where to be kind to the repository mirror sites they rebase what the repositories hold to be just the newest at each minor release (since that is what a yum update will pull anyway). That way the mirrors don't have to hold all of the old/intermediate package versions that are only kept in the vault repository. It is pretty much irrelevant to normal updates - you can update from any version to current, even just with specific packages.