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    <h1>Releases</h1>
    <p>This is the list of official releases for libvirt, along with an
    overview of the changes introduced by each of them.</p>
    <p>For a more fine-grained view, use the
    <a href="http://libvirt.org/git/?p=libvirt.git;a=log">git log</a>.
    </p>

    <h3>v3.0.0 (<i>unreleased</i>)</h3>
    <ul>
      <li><strong>New features</strong>
        <ul>
          <li>qemu: Support QEMU group I/O throttling<br/>
          Add the capability to allow group I/O throttling via a new
          domain &lt;disk&gt; &lt;iotune&gt; subelement "group_name"
          to allow sharing I/O throttling quota between multiple drives
          </li>
          <li>nss: Introduce <code>libvirt-guest</code><br/>
          New <code>libvirt-guest</code> nss module that translates libvirt
          guest names into IP addresses
          </li>
          <li>daemon: Add support for runtime logging settings adjustment<br/>
          Logging-related settings like log outputs and filters can now be
          adjusted during runtime using the admin interface without the
          necessity of the daemon's restart
          </li>
        </ul>
      </li>
      <li><strong>Improvements</strong>
        <ul>
          <li>perf: Add more perf statistics<br/>
          Add support to get the count of branch instructions
          executed, branch misses, bus cycles, stalled frontend
          cpu cycles, stalled backend cpu cycles, and ref cpu
          cycles by applications running on the platform
          </li>
        </ul>
      </li>
      <li><strong>Bug fixes</strong>
        <ul>
            <li>qemu: Correct GetBlockInfo values<br/>
            For an active domain, correct the physical value provided for
            a raw sparse file backed storage and the allocation value provided
            for a qcow2 file backed storage that hasn't yet been opened on
            the domain
          </li>
        </ul>
      </li>
    </ul>

    <h3>v2.5.0 (2016-12-04)</h3>
    <ul>
      <li><strong>New features</strong>
        <ul>
          <li>shmem: Add support for additional models<br/>
          The shmem device can now utilize QEMU's ivshmem-plain and
          ivshmem-doorbell, more modern versions of ivshmem
          </li>
          <li>vbox: Add VirtualBox 5.1 support
          </li>
          <li>libssh: New transport<br/>
          The new libssh transport allows one to connect to a running
          libvirtd via SSH, using the libssh library; for example:
          <tt>qemu+libssh://<i>server</i>/system</tt>
          </li>
          <li>vhost-scsi: Add support scsi_host hostdev passthrough<br/>
          Add the capability to pass through a scsi_host HBA and the
          associated LUNs to the guest
          </li>
          <li>qemu: Users can now enable debug logging for native gluster
          volumes in qemu using the "gluster_debug_level" option in qemu.conf
          </li>
          <li>memory hotplug: Slot numbers for memory devices are now
          automatically allocated and thus persistent. In addition slot numbers
          can be specified without providing a base address, which simplifies
          user configuration
          </li>
          <li>qemu: Express devices will be placed on PCIe bus by default<br/>
          For machine types that use a PCI Express root bus
          (e.g. x86_64/Q35 and aarch64/virt), any unaddressed PCI
          device that is an Express device (all virtio-1.0 devices,
          e1000e, nec-xhci, vfio assigned devices) will be placed on
          an Express controller (i.e. a pcie-root-port) instead of a
          legacy PCI controller (i.e. pci-bridge) with the root ports
          added as needed
          </li>
        </ul>
      </li>
      <li><strong>Improvements</strong>
        <ul>
          <li>docs: Better documentation for migration APIs and flags
          </li>
          <li>vbox: Address thread safety issues
          </li>
          <li>virsh: Add support for passing an alternative persistent XML
          to migrate command
          </li>
          <li>vhostuser: Allow hotplug of multiqueue devices
          </li>
          <li>NEWS: Switch to an improved format<br/>
          List user-visible changes instead of single commits for a better
          high-level overview of differences between libvirt releases
          </li>
          <li>website: Modernize layout and branding<br/>
          The libvirt website looked very cluttered and outdated; it has now
          been completely overhauled, resulting in a design that's better
          organized and more pleasant to look at
          </li>
        </ul>
      </li>
      <li><strong>Bug fixes</strong>
        <ul>
          <li>vz: Fix migration in P2P mode
          </li>
          <li>Forbid newline character in names of some libvirt objects
          </li>
          <li>Fix compilation on macOS
          </li>
        </ul>
      </li>
    </ul>

    <p>Releases earlier than v2.5.0 detailed their changes using a different
    format and as such are excluded from the list above.
    You can read about those older release, starting from those made in
    <a href="news-2016.html">2016</a>.
    </p>

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