Downloaded client and server x86_64 DVD's for 5.4 and 5.5beta. Got a list of package names and made a difference list. I am downloading the src dvd's to do a better 'blocking' list but at the moment here is a list of changes between 5.4 and 5.5beta

Items removed from 5.5beta that were in 5.4: pfmon

Items added from 5.5beta that were NOT in 5.4

apr-util-mysql celt051 celt051-devel e4fsprogs-devel e4fsprogs-libs etherboot-pxes etherboot-roms etherboot-roms-kvm etherboot-zroms etherboot-zroms-kvm freeradius2 freeradius2-krb5 freeradius2-ldap freeradius2-mysql freeradius2-perl freeradius2-postgresql freeradius2-python freeradius2-unixODBC freeradius2-utils gpxe-roms-qemu gsl gsl-devel gsl-static iasl kmod-kvm kvm kvm-qemu-img kvm-tools libipathverbs libipathverbs-static libsmbclient libsmbclient-devel libtalloc libtalloc-devel libtdb libtdb-devel log4cpp log4cpp-devel log4cpp-docs mcelog openoffice.org-ure postgresql84 postgresql84-contrib postgresql84-devel postgresql84-docs postgresql84-libs postgresql84-plperl postgresql84-plpython postgresql84-pltcl postgresql84-python postgresql84-server postgresql84-tcl postgresql84-test python-dmidecode qcairo qcairo-devel qffmpeg-devel qffmpeg-libs qpixman qpixman-devel qspice qspice-libs qspice-libs-devel rsyslog-gnutls rsyslog-gssapi rsyslog-pgsql samba3x samba3x-client samba3x-common samba3x-doc samba3x-domainjoin-gui samba3x-swat samba3x-winbind samba3x-winbind-devel sblim-sfcb sblim-sfcc sblim-sfcc-devel sblim-smis-hba tdb-tools tunctl valgrind-devel xz xz-devel xz-libs xz-lzma-compat

Now for the ODD things.. some stuff were moved from RHEL 5.4 client to 5.5 server? apmd gnu-efi gpart ibmasm ibmasm-xinput kernel-PAE kernel-PAE-devel xorg-x11-drv-apm xorg-x11-drv-ark xorg-x11-drv-chips xorg-x11-drv-cyrix xorg-x11-drv-glint xorg-x11-drv-i128 xorg-x11-drv-i740 xorg-x11-drv-neomagic xorg-x11-drv-nsc xorg-x11-drv-rendition xorg-x11-drv-tseng xorg-x11-drv-v4l

and vice versa... libpfm libpfm-devel

Hope this helps people.