I did an upgrade on Jan 3,2014 from CentOS 6.4 to 6.5 and noticed that there hasnt been any updates since then
Jan 03 11:45:05 Updated: 12:dhcp-common-4.1.1-38.P1.el6.centos.i686
Jan 03 11:45:06 Updated: hwdata-0.233-9.1.el6.noarch
Jan 03 11:45:11 Updated: kernel-firmware-2.6.32-431.el6.noarch
Jan 03 11:45:12 Updated: 1:busybox-1.15.1-20.el6.i686
Jan 03 11:45:13 Updated: centos-release-6-5.el6.centos.11.1.i686
Jan 03 11:45:14 Installed: gdbm-devel-1.8.0-36.el6.i686
Jan 03 11:45:18 Updated: kernel-headers-2.6.32-431.el6.i686
Jan 03 11:45:57 Installed: kernel-devel-2.6.32-431.el6.i686
Jan 03 11:45:59 Updated: man-pages-overrides-6.5.2-1.el6.noarch
Jan 03 11:46:00 Updated: ql2400-firmware-7.00.01-1.el6.noarch
Jan 03 11:46:00 Updated: ql2500-firmware-7.00.01-1.el6.noarch
Jan 03 11:46:02 Updated: xorg-x11-drv-ati-firmware-7.1.0-3.el6.noarch
Jan 03 11:46:03 Updated: libgcc-4.4.7-4.el6.i686
Jan 03 11:46:21 Updated: glibc-common-2.12-1.132.el6.i686
Jan 03 11:46:31 Updated: glibc-2.12-1.132.el6.i686
Jan 03 11:46:32 Updated: nss-softokn-freebl-3.14.3-9.el6.i686
Jan 03 11:46:32 Updated: 1:perl-Pod-Escapes-1.04-136.el6.i686
Jan 03 11:46:33 Updated: 1:perl-Module-Pluggable-3.90-136.el6.i686
Jan 03 11:46:34 Updated: 3:perl-version-0.77-136.el6.i686
Jan 03 11:46:36 Updated: 1:perl-Pod-Simple-3.13-136.el6.i686
Jan 03 11:46:37 Updated: 4:perl-libs-5.10.1-136.el6.i686
Jan 03 11:46:49 Updated: 4:perl-5.10.1-136.el6.i686
Jan 03 11:46:51 Updated: libcom_err-1.41.12-18.el6.i686
Jan 03 11:46:52 Updated: libxml2-2.7.6-14.el6.i686
Jan 03 11:46:53 Updated: nspr-4.10.0-1.el6.i686
Jan 03 11:46:54 Updated: libstdc++-4.4.7-4.el6.i686
Jan 03 11:46:57 Updated: grep-2.6.3-4.el6.i686
Jan 03 11:46:58 Updated: coreutils-libs-8.4-31.el6.i686
Jan 03 11:47:02 Updated: coreutils-8.4-31.el6.i686
Jan 03 11:47:06 Updated: pam-1.1.1-17.el6.i686
Jan 03 11:47:08 Updated: php-common-5.3.3-26.el6.i686
Jan 03 11:47:09 Updated: nss-util-3.15.1-3.el6.i686
Jan 03 11:47:10 Updated: btparser-0.17-2.el6.i686
Jan 03 11:47:11 Updated: xmlrpc-c-1.16.24-1210.1840.el6.i686
Jan 03 11:47:12 Updated: xmlrpc-c-client-1.16.24-1210.1840.el6.i686
Jan 03 11:47:14 Updated: libudev-147-2.51.el6.i686
Jan 03 11:47:15 Updated: libuuid-2.17.2-12.14.el6.i686
Jan 03 11:47:16 Updated: libblkid-2.17.2-12.14.el6.i686
Jan 03 11:47:17 Updated: e2fsprogs-libs-1.41.12-18.el6.i686
Jan 03 11:47:18 Updated: libnl-1.1.4-2.el6.i686
Jan 03 11:47:19 Updated: libXcursor-1.1.13-6.20130524git8f677eaea.el6.i686
Jan 03 11:47:20 Updated: perl-IO-Compress-Base-2.021-136.el6.i686
Jan 03 11:47:21 Updated: 1:perl-Compress-Raw-Zlib-2.021-136.el6.i686
Jan 03 11:47:22 Installed: p11-kit-0.18.5-2.el6.i686
Jan 03 11:47:23 Updated: sysvinit-tools-2.87-5.dsf.el6.i686
Jan 03 11:47:25 Updated: perl-IO-Compress-Zlib-2.021-136.el6.i686
Jan 03 11:47:27 Updated: perl-Compress-Zlib-2.021-136.el6.i686
Jan 03 11:47:28 Updated: 1:perl-IO-Zlib-1.09-136.el6.i686
Jan 03 11:47:29 Updated: libXcursor-devel-1.1.13-6.20130524git8f677eaea.el6.i686
Jan 03 11:47:33 Updated: libstdc++-devel-4.4.7-4.el6.i686
Jan 03 11:47:34 Updated: 1:perl-Package-Constants-0.02-136.el6.i686
Jan 03 11:47:38 Updated: glibc-headers-2.12-1.132.el6.i686
Jan 03 11:47:39 Updated: glibc-devel-2.12-1.132.el6.i686
Jan 03 11:47:40 Installed: p11-kit-trust-0.18.5-2.el6.i686
Jan 03 11:47:44 Updated: ca-certificates-2013.1.94-65.0.el6.noarch
Jan 03 11:47:47 Updated: openssl-1.0.1e-15.el6.i686
Jan 03 11:47:51 Updated: openssl-devel-1.0.1e-15.el6.i686
Jan 03 11:47:53 Updated: mysql-libs-5.1.71-1.el6.i686
Jan 03 11:47:54 Updated: python-2.6.6-51.el6.i686
Jan 03 11:48:07 Updated: python-libs-2.6.6-51.el6.i686
Jan 03 11:48:09 Updated: mysql-5.1.71-1.el6.i686
Jan 03 11:48:10 Updated: libxml2-python-2.7.6-14.el6.i686
Jan 03 11:48:12 Updated: php-cli-5.3.3-26.el6.i686
Jan 03 11:48:14 Updated: nss-softokn-3.14.3-9.el6.i686
Jan 03 11:48:15 Updated: nss-sysinit-3.15.1-15.el6.i686
Jan 03 11:48:17 Updated: nss-3.15.1-15.el6.i686
Jan 03 11:48:18 Updated: rpm-libs-4.8.0-37.el6.i686
Jan 03 11:48:20 Updated: rpm-4.8.0-37.el6.i686
Jan 03 11:48:21 Updated: rpm-python-4.8.0-37.el6.i686
Jan 03 11:48:25 Updated: sos-2.2-47.el6.centos.noarch
Jan 03 11:48:26 Updated: mailx-12.4-7.el6.i686
Jan 03 11:48:27 Updated: php-pdo-5.3.3-26.el6.i686
Jan 03 11:48:28 Updated: logrotate-3.7.8-17.el6.i686
Jan 03 11:48:31 Updated: device-mapper-persistent-data-0.2.8-2.el6.i686
Jan 03 11:48:32 Installed: snappy-1.1.0-1.el6.i686
Jan 03 11:48:33 Installed: db4-cxx-4.7.25-18.el6_4.i686
Jan 03 11:48:45 Installed: db4-devel-4.7.25-18.el6_4.i686
Jan 03 11:48:47 Updated: perl-Test-Harness-3.17-136.el6.i686
Jan 03 11:48:48 Updated: 1:perl-ExtUtils-ParseXS-2.2003.0-136.el6.i686
Jan 03 11:48:52 Updated: perl-ExtUtils-MakeMaker-6.55-136.el6.i686
Jan 03 11:48:54 Updated: 4:perl-devel-5.10.1-136.el6.i686
Jan 03 11:48:56 Installed: shared-mime-info-0.70-4.el6.i686
Jan 03 11:48:59 Updated: glib2-2.26.1-3.el6.i686
Jan 03 11:49:01 Updated: policycoreutils-2.0.83-19.39.el6.i686
Jan 03 11:49:04 Updated: iptables-1.4.7-11.el6.i686
Jan 03 11:49:06 Updated: iproute-2.6.32-31.el6.i686
Jan 03 11:49:09 Updated: initscripts-9.03.40-2.el6.centos.i686
Jan 03 11:49:12 Updated: util-linux-ng-2.17.2-12.14.el6.i686
Jan 03 11:49:15 Updated: udev-147-2.51.el6.i686
Jan 03 11:49:17 Updated: atk-1.30.0-1.el6.i686
Jan 03 11:49:19 Updated: dracut-004-335.el6.noarch
Jan 03 11:49:20 Updated: device-mapper-libs-1.02.79-8.el6.i686
Jan 03 11:49:21 Updated: device-mapper-1.02.79-8.el6.i686
Jan 03 11:49:22 Updated: device-mapper-event-libs-1.02.79-8.el6.i686
Jan 03 11:49:23 Updated: openssh-5.3p1-94.el6.i686
Jan 03 11:49:29 Updated: glib2-devel-2.26.1-3.el6.i686
Jan 03 11:49:31 Updated: atk-devel-1.30.0-1.el6.i686
Jan 03 11:49:32 Updated: dracut-kernel-004-335.el6.noarch
Jan 03 11:49:36 Updated: selinux-policy-3.7.19-231.el6.noarch
Jan 03 11:49:37 Updated: device-mapper-event-1.02.79-8.el6.i686
Jan 03 11:49:39 Updated: lvm2-libs-2.02.100-8.el6.i686
Jan 03 11:49:40 Updated: kpartx-0.4.9-72.el6.i686
Jan 03 11:49:44 Updated: gtk2-2.20.1-4.el6.i686
Jan 03 11:49:45 Updated: mdadm-3.2.6-7.el6.i686
Jan 03 11:49:46 Updated: ntpdate-4.2.6p5-1.el6.centos.i686
Jan 03 11:49:49 Updated: rsyslog-5.8.10-8.el6.i686
Jan 03 11:49:50 Updated: cronie-anacron-1.4.4-12.el6.i686
Jan 03 11:49:52 Updated: cronie-1.4.4-12.el6.i686
Jan 03 11:49:53 Updated: libreport-plugin-reportuploader-2.0.9-19.el6.centos.i686
Jan 03 11:49:54 Updated: libreport-compat-2.0.9-19.el6.centos.i686
Jan 03 11:49:55 Updated: libreport-plugin-rhtsupport-2.0.9-19.el6.centos.i686
Jan 03 11:49:57 Updated: libreport-2.0.9-19.el6.centos.i686
Jan 03 11:49:58 Updated: libreport-python-2.0.9-19.el6.centos.i686
Jan 03 11:49:59 Updated: abrt-libs-2.0.8-21.el6.centos.i686
Jan 03 11:50:01 Updated: abrt-2.0.8-21.el6.centos.i686
Jan 03 11:50:04 Updated: abrt-addon-python-2.0.8-21.el6.centos.i686
Jan 03 11:50:06 Updated: abrt-addon-ccpp-2.0.8-21.el6.centos.i686
Jan 03 11:50:07 Updated: abrt-tui-2.0.8-21.el6.centos.i686
Jan 03 11:50:07 Updated: libreport-cli-2.0.9-19.el6.centos.i686
Jan 03 11:50:08 Updated: libreport-plugin-mailx-2.0.9-19.el6.centos.i686
Jan 03 11:50:09 Updated: libreport-plugin-kerneloops-2.0.9-19.el6.centos.i686
Jan 03 11:50:11 Updated: abrt-addon-kerneloops-2.0.8-21.el6.centos.i686
Jan 03 11:50:12 Updated: libreport-plugin-logger-2.0.9-19.el6.centos.i686
Jan 03 11:50:13 Updated: grubby-7.0.15-5.el6.i686
Jan 03 11:50:27 Installed: kernel-2.6.32-431.el6.i686
Jan 03 11:50:28 Updated: fprintd-0.1-21.git04fd09cfa.el6.i686
Jan 03 11:50:30 Updated: libss-1.41.12-18.el6.i686
Jan 03 11:50:31 Updated: e2fsprogs-1.41.12-18.el6.i686
Jan 03 11:50:33 Updated: 1:perl-Digest-SHA-5.47-136.el6.i686
Jan 03 11:50:34 Updated: numactl-2.0.7-8.el6.i686
Jan 03 11:50:36 Updated: cpp-4.4.7-4.el6.i686
Jan 03 11:50:37 Updated: sg3_utils-libs-1.28-5.el6.i686
Jan 03 11:50:39 Updated: 14:libpcap-1.4.0-1.20130826git2dbcaa1.el6.i686
Jan 03 11:50:40 Updated: libgomp-4.4.7-4.el6.i686
Jan 03 11:50:42 Updated: perl-CPAN-1.9402-136.el6.i686
Jan 03 11:50:42 Updated: abrt-cli-2.0.8-21.el6.centos.i686
Jan 03 11:53:30 Updated: selinux-policy-targeted-3.7.19-231.el6.noarch
Jan 03 11:53:32 Updated: bfa-firmware-3.2.21.1-2.el6.noarch
Jan 03 11:53:33 Updated: mysql-devel-5.1.71-1.el6.i686
Jan 03 11:53:35 Updated: python-urlgrabber-3.9.1-9.el6.noarch
Jan 03 11:53:36 Updated: 1:grub-0.97-83.el6.i686
Jan 03 11:53:40 Updated: libxml2-devel-2.7.6-14.el6.i686
Jan 03 11:53:41 Updated: perl-Archive-Tar-1.58-136.el6.i686
Jan 03 11:53:43 Updated: libcom_err-devel-1.41.12-18.el6.i686
Jan 03 11:53:44 Updated: 1:perl-Module-Load-0.16-136.el6.i686
Jan 03 11:53:47 Updated: gcc-4.4.7-4.el6.i686
Jan 03 11:53:50 Updated: gcc-c++-4.4.7-4.el6.i686
Jan 03 11:53:54 Updated: 2:nmap-5.51-3.el6.i686
Jan 03 11:53:55 Updated: ledmon-0.78-1.el6.i686
Jan 03 11:53:56 Updated: 2:irqbalance-1.0.4-6.el6.i686
Jan 03 11:53:58 Updated: 1:quota-3.17-20.el6.i686
Jan 03 11:53:59 Updated: fprintd-pam-0.1-21.git04fd09cfa.el6.i686
Jan 03 11:54:00 Updated: systemtap-runtime-2.3-3.el6.i686
Jan 03 11:54:04 Updated: sysstat-9.0.4-22.el6.i686
Jan 03 11:54:06 Updated: ntp-4.2.6p5-1.el6.centos.i686
Jan 03 11:54:08 Updated: kexec-tools-2.0.0-273.el6.i686
Jan 03 11:54:13 Updated: gtk2-devel-2.20.1-4.el6.i686
Jan 03 11:54:15 Updated: lvm2-2.02.100-8.el6.i686
Jan 03 11:54:17 Updated: openssh-server-5.3p1-94.el6.i686
Jan 03 11:54:18 Updated: openssh-clients-5.3p1-94.el6.i686
Jan 03 11:54:20 Updated: parted-2.1-21.el6.i686
Jan 03 11:54:21 Updated: biosdevname-0.5.0-2.el6.i686
Jan 03 11:54:22 Updated: libdrm-2.4.45-2.el6.i686
Jan 03 11:54:24 Updated: 1:readahead-1.5.6-2.el6.i686
Jan 03 11:54:26 Updated: 12:dhcp-4.1.1-38.P1.el6.centos.i686
Jan 03 11:54:32 Updated: mysql-server-5.1.71-1.el6.i686
Jan 03 11:54:34 Updated: 12:dhclient-4.1.1-38.P1.el6.centos.i686
Jan 03 11:54:35 Updated: 1:microcode_ctl-1.17-17.el6.i686
Jan 03 11:54:37 Updated: iptables-ipv6-1.4.7-11.el6.i686
Jan 03 11:54:38 Updated: php-mysql-5.3.3-26.el6.i686
Jan 03 11:54:39 Updated: nss-tools-3.15.1-15.el6.i686
Jan 03 11:54:41 Updated: php-5.3.3-26.el6.i686
Jan 03 11:54:42 Updated: python-ethtool-0.6-5.el6.i686
Jan 03 11:54:43 Updated: iw-3.10-1.1.el6.i686
Jan 03 11:54:44 Updated: php-process-5.3.3-26.el6.i686
Jan 03 11:54:46 Updated: php-gd-5.3.3-26.el6.i686
Jan 03 11:54:47 Updated: php-mbstring-5.3.3-26.el6.i686
Jan 03 11:54:49 Updated: sudo-1.8.6p3-12.el6.i686
Jan 03 11:54:56 Updated: ghostscript-8.70-19.el6.i686
Jan 03 11:54:57 Updated: 4:perl-Time-HiRes-1.9721-136.el6.i686
Jan 03 11:54:58 Updated: efibootmgr-0.5.4-11.el6.i686
Jan 03 11:55:00 Updated: setuptool-1.19.9-4.el6.i686
Jan 03 11:55:00 Updated: scl-utils-20120927-8.el6.i686
Jan 03 11:55:01 Updated: hdparm-9.43-4.el6.i686
[blah@valrog ~]$ sudo yum clean all
Loaded plugins: fastestmirror, priorities, security
Cleaning repos: base centosplus epel epel-source extras updates
Cleaning up Everything
Cleaning up list of fastest mirrors
[blah@valrog ~]$ sudo yum update
Loaded plugins: fastestmirror, priorities, security
Determining fastest mirrors
epel-source/metalink | 14 kB 00:00
* epel-source: download-i2.fedoraproject.org
base | 3.7 kB 00:00
base/primary_db | 3.5 MB 00:09
centosplus | 3.7 kB 00:00
centosplus/primary_db | 3.5 MB 00:08
epel | 4.2 kB 00:00
epel/primary_db | 4.9 MB 00:11
epel-source | 3.5 kB 00:00
epel-source/primary_db | 1.6 MB 00:03
extras | 3.7 kB 00:00
extras/primary_db | 3.5 MB 00:08
updates | 3.7 kB 00:00
updates/primary_db | 3.5 MB 00:08
Setting up Update Process
No Packages marked for Update
[blah@valrog ~]$ sudo yum upgrade
[sudo] password for dabeast:
Loaded plugins: fastestmirror, priorities, security
Loading mirror speeds from cached hostfile
* epel-source: download-i2.fedoraproject.org
Setting up Upgrade Process
No Packages marked for Update
??