In preparation for XSA-172, due to be made public next week (29 March), as discussed previously, I'm going to be updating the centos-release-xen package to point to Xen 4.6 rather than 4.4. As a reminder, you can "pin" your installation to Xen 4.4 by installing centos-release-xen-44 and then removing centos-release-xen. Also, I will not be applying any more patches to the Xen 4.4 packages. I will, however, review and push through the build system pull requests sent to https://github.com/CentOS-virt7/xen. -George