Changelog:
* Support for 32-bit KVM guests on 64-bit ARM hosts
* Support for running KVM under valgrind
* New IvyBridge CPU model for x86 guests
* Xen: support for ioreq-server API
* New 5KEc and 5KEf MIPS64r2, and M14K and M14Kc MIPS32r2
microMIPS CPU models for MIPS guests
* Basic support for transactional memory extentions in PowerPC guests
* Improved VGA support for little-endian PPC/pSeries guests
* PCI bus support for s390x guests
* Support for automatic guest device unplug when passthrough devices
are unbound from VFIO host driver
* Improved UI performance/support for GTK+/VNC/SDL/Spice, and VNC
support for multiseat
* Performance improvements for virtio-blk emulation: asynchronous SCSI
request handling, and disk read merging.
* QEMU Guest Agent: now also supports file operations in Windows guests,
can be used to enable/disable memory blocks in linux guests in
support for memory hotplug.
* Migration can now include a JSON description of migration stream to aid
in identifying incompatibilities betweens guests/hosts.
* And lots more...