Release of libvirt-7.4.0

The 7.4.0 release of both libvirt and libvirt-python is tagged and signed tarballs and source RPMs are available at https://libvirt.org/sources/ https://libvirt.org/sources/python/ Thanks everybody who helped with this release by sending patches, reviewing, testing, or providing any other feedback. Your work is greatly appreciated. * Removed features * qemu: Remove support for QEMU < 2.11 In accordance with our platform support policy, the oldest supported QEMU version is now bumped from 1.5 to 2.11. * New features * qemu: Add support for hotplugging ``<transient/>`` disks The disk hotplug code in the qemu driver now can handle hotplug of disks with automatically added overlay. * qemu: Add support for sharing base image of ``<transient/>`` disks Users can use ``<transient shareBacking='yes'/>`` to tell the qemu driver to never open the base image in write mode thus multiple VMs can share the same image. Note that the disk will be hotplugged during startup. * Improvements * Add win-dmp crashdump format New ``win-dmp`` format for ``virDomainCoreDumpWithFormat`` API and/or virsh ``dump --format`` was introduced. * Bug fixes * Allow 0 offset in XML schema for ``<slice type='storage' offset='0' size='321'/>`` Having a 0 offset so that the size of the image can be limited is a valid configuration so it was allowed in the XML schema. Enjoy. Jirka