[CentOS] Upgrading to CentOS 7

Tue May 19 12:43:23 UTC 2015
Timothy Murphy <gayleard at eircom.net>

I read in <http://wiki.centos.org/TipsAndTricks/CentOSUpgradeTool>

"Warning: use of this tool is currently not recommended as several system-
critical packages are of a higher version number in CentOS 6.6 than they are 
in CentOS 7 so those do not get upgraded correctly. This renders yum and 
several other system tools non-functional."

Does this still hold?
It seems to me a bit pointless to offer a tool 
with the warning that it does not work.

Timothy Murphy  
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin