A little bit late but it's out, the new release is tagged in git and signed tarball and rpms have been pushed to the usual place: ftp://libvirt.org/libvirt/ I also pushed the corresponding release of python bindings at ftp://libvirt.org/libvirt/python/ This release brings a significant set of new features and noticeable improvements in addition to bug fixes: New features: - conf: Support defining distances between virtual NUMA cells A NUMA hardware architecture supports the notion of distances between NUMA cells. This can now be specified using the <distances> element within the NUMA cell configuration. Drivers which support this include Xen and QEMU. - Xen: Support defining vNUMA topology Xen now supports defining a virtual NUMA topology for VMs, including specifying distances between NUMA cells. - qemu: Add the ability to configure HPT resizing for pSeries guests The user can now decide whether HPT (Hash Page Table) resizing should be enabled, disabled or required instead of leaving it up to hypervisor defaults and negotiation between the guest and the host. - qemu: Add vmcoreinfo feature Starting with QEMU 2.11, the guest can save kernel debug details when this feature is enabled and the kernel supports it. It is useful to process kernel dump with KASLR enabled, and also provides various kernel details to crash tools. - conf: Move the auth and encryption definitions to disk source Allow parsing and formatting of the auth and encryption sub-elements to be a child of the source element. This will allow adding an auth sub-element to a backingStore or mirror elements as a means to track specific authentication and/or encryption needs. Improvements: - vbox: Add VirtualBox 5.2 support - vbox: Add support for configuring storage controllers The VirtualBox driver now supports the <controller> element in the domain XML for configuring storage controllers in VBOX VMs. Additionally, libvirt's domain XML schema was updated to allow optional model attribute for <controller type='ide'> which is used by the VBOX driver to set the IDE controller model to be one of 'piix4', 'piix4' (default), or 'ich6'. Finally, with this change dumpxml generates <controller> elements that correspond to current VBOX VM storage controller configuration. - vbox: Add support for attaching empty removable disks The VirutalBox driver now supports adding CD-ROM and floppy disk devices that do not have the disk source specified. Previously such devices were silently ignored. - vbox: Add support for attaching SAS storage controllers In VirtualBox, SCSI and SAS are distinct controller types whereas libvirt does not make such distinction. Therefore, the VBOX driver was updated to allow attaching SAS controllers via <controller type='scsi' model='lsisas1068'> element. If there are both SCSI and SAS controllers present in the VBOX VM, the domain XML can associate the disk device using the <address> element with the controller attribute, and optionally, set the port via unit attribute. - qemu: Generate predictable paths for qemu memory backends In some cases management applications need to know paths passed to memory-backend-file objects upfront. Libvirt now generates predictable paths so applications can prepare the files if they need to do so. - Shareable disks work properly with recent qemu Recent qemu versions added image locking to avoid potential corruption of disk images. This broke shareable disks with libvirt since the feature was turned on by default in qemu. Libvirt now enables sharing of those disks in qemu so that the image locking is not applied in that case. Additionally libvirt now checks that shareable disks have supported format (raw) to avoid metadata corruption. - Improve serial console behavior on non-x86 architectures ppc64, aarch64 and s390x guests were treating the <serial> and <console> elements differently from x86, in some cases presenting misleading information to the user. The behavior is now consistent across all architectures and the information reported is always accurate. Bug fixes: - vbox: Do not ignore failures to attach disk devices when defining The define now fails and reports an error if any of the controller or disk devices specified in the domain XML fail to attach to the VirtualBox VM. - vbox: Fix dumpxml to always output disk devices The VirtualBox driver was ignoring any disk devices in dumpxml output if there was a SAS storage controller attached to the VM. - vbox: Fix dumpxml to always generate valid domain XML When a VirtualBox VM has multiple disks attached, each to a different storage controller that uses 'sd' prefix for block device names e.g. one disk attached to SATA and one to SCSI controller, it no longer generates XML where both would have 'sda' device name assigned. Instead it properly assigns 'sda' and 'sdb' to those disks in the order of appearance. - Securely pass iSCSI authentication data Rather than supplying the authentication data as part of the iSCSI URL for a disk or host device, utilize the encrypted secret object to securely pass the authentication data. Thanks everybody for your help getting this release out, with ideas, patches, reviews, documentations, bug reports ... Enjoy this release, and please not that the next one (4.0.0) is scheduled for mid january ! Daniel -- Daniel Veillard | Red Hat Developers Tools http://developer.redhat.com/ veillard(a)redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | virtualization library http://libvirt.org/