From the QEMU mailing list:
On behalf of the QEMU Team, I'd like to announce the availability of the QEMU 2.4.0 release. This release contains 1900+ commits from 182 authors. http://wiki.qemu.org/download/qemu-2.4.0.tar.bz2 The full list of changes are available at: http://wiki.qemu.org/ChangeLog/2.4 Highlights include: * Support for group-based disk IO throttling * Improved support for block device mirroring, and performance improvements for qcow2 disk images and iSCSI emulation * Initial support for OASIS virtio-1 specification * Support for virtio-gpu (accelerated 2D only, plans for 3D via later via Virgil3D) * Support for virtio-based keyboard/mouse/tablet emulation, as well direct passthrough of host input devices over virtio * x86 support for non-globally-locked MMIO operations for ACPI PM timer, which can substantially improve performance for large Windows guests * x86 support for memory hot-unplug * ARM support for new "xlnx-ep108" board, and ACPI v5.1 table support for "virt" board * MIPS support for microMIPS32 R6 emulation, and eXtended and Large Page Addressing emulation for MIPS32 and MIPS64, respectively * PowerPC support for PCI hotplug with pSeries guests * s390 support for channel I/O when using TCG-based emulation, diag288 watchdog devices, and vector registers, and various cleanups/improvements * And lots more... Thank you to everyone involved!