Spacewalk not just install new packages but update packages as well

Before I registered the server with Spacewalk I ran yum update to get the list of available updates.  The output (ran on 8/1/2016) reported:

Transaction Summary==========================Install       3 Package(s)Upgrade      36 Package(s)

Now that I have registered the server with Spacewalk I see the following:

sudo yum repolistLoaded plugins: refresh-packagekit, rhnplugin, securityThis system is receiving updates from Spacewalk server.repo id                                               repo name                                                                                 statusol6_u7_x86_64                                         Oracle Linux 6 Update 7 installation media copy x86_64                                    8,225ol6_u7_x86_64_patch                                   Oracle Linux 6 Update 7 Patch x86_64                                                      1,676ol6_x86_64_ksplice                                    Ksplice for Oracle Linux 6                                                                1,889ol6_x86_64_spacewalk24_client                         Spacewalk Client 2.4 for Oracle Linux 6 x86_64                                              505ol6_x86_64_uekr3_latest                               Unbreakable Enterprise Kernel Release 3 for Oracle Linux 6 x86_64                           493repolist: 12,788sudo yum updateLoaded plugins: refresh-packagekit, rhnplugin, securityThis system is receiving updates from Spacewalk server.Setting up Update ProcessResolving Dependencies--> Running transaction check---> Package kernel-headers.x86_64 0:2.6.32-642.1.1.el6 will be obsoleted---> Package kernel-uek.x86_64 0:3.8.13-118.9.2.el6uek will be installed---> Package kernel-uek-firmware.noarch 0:3.8.13-118.9.2.el6uek will be