updates which work on all of 6.x don't apear in the lower 6.x (6.0, 6.1)
this is true for example for the new glibc-*.rpm
this make automatic updating a little bit difficult, if not impossible as i
have to read through all of the security announcements to find the
directory for a given release number.
this is happening for bash-1.14.7-23.6x.i386.rpm and ncurses-5.0-12.i386.rpm
still happening (for example for the new rpm rpms).
I see it's happening - trying to establish if this is for a reason.
6.2 is the oldest supported release. Releases before that are not assured of
receiving any updates.