This update for xen fixes the following issues:
This security issue was fixed:
These non-security issue were fixed:
{
    "binaries": [
        {
            "xen-libs-32bit": "4.4.4_36-22.74.1",
            "xen": "4.4.4_36-22.74.1",
            "xen-tools": "4.4.4_36-22.74.1",
            "xen-doc-html": "4.4.4_36-22.74.1",
            "xen-libs": "4.4.4_36-22.74.1",
            "xen-kmp-default": "4.4.4_36_k3.12.61_52.141-22.74.1",
            "xen-tools-domU": "4.4.4_36-22.74.1"
        }
    ]
}