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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>
2016-12-05 07:44:22 +00:00
<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>
</ul>
2016-12-05 07:44:22 +00:00
</li>
<li><strong>Improvements</strong>
<ul>
<li>perf: Add more perf statistics<br/>
Add support to get the count of branch instructions executed
and branch misses by applications running on the platform
</li>
</ul>
2016-12-05 07:44:22 +00:00
</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>
2016-12-05 07:44:22 +00:00
</li>
</ul>
2016-12-05 07:38:09 +00:00
<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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