Xen 4.5 maintenance release
The Xen Project has released version 4.5.5. of its hypervisor, a maintenance release.
It's a recommended upgrade for all users of version 4.5, because it fixes an information leak on AMD CPUs, just one of 104 fixes or minor improvements. There's 18 Qemu fixes, too.
Don't be alarmed by this release: Xen's maintenance policy calls for a new release every four months.
You can download the new software here. ®