I noticed updates for dhcp and redhat-logos. From the changelog it becomes clear why there was no announcement nor update from redhat. As I understand this was only branding stuff.
* Mit Aug 15 2012 Johnny Hughes johnny@centos.org - 12:4.1.1-31.P1.1.el6.centos - created patch 1000 for CentOS Branding - replaced vvendor variable with CentOS in the SPEC file
* Mit Aug 15 2012 Johnny Hughes johnny@centos.org 60.0.14-12 - Bugfix for CentOS Bug #5704
But it is not clear to me why there was no announcement from CentOS, at least I can not find it. I am subscribed to centos-announce and I had a look at http://lists.centos.org/pipermail/centos-announce/2012-August/thread.html too.