Today kvm-80 was released featuring bug fixes. The notable bug fixes include those for display regressions and userspace/kernel compatibility with older kernel modules. Also included in this release are some minor features that are included the changelog.

The official changelog provided by the kvm maintainers are as follows:

Changes from kvm-80:

- merge qemu-svn
- fix performance regression with qcow2 files
- improve qcow2 data integrity with cache=writethrough
- fix display corruption with gnome panel auto-appear
- scsi improvements
- shld/shrd instruction emulation and unit test (Guillaume Thouvenin)
- ppc updates (Hollis Blanchard, Deepa Srinivasan, Christian Ehrhardt)
- prepare virtio for upstream merging (Anthony Liguori)
- fix uninitialized variable in virtio-net (Anthony Liguori)
- fix compile failure on Debian (Amit Shah)
- fix display loss in opensuse 11 installer
- fix vmmcall emulation on intel (Amit Shah)
- fixes amd->intel migration
- allow userspace to work with modules from kvm-79 and earlier
- fix undefined behaviour copying cpuid signature (Guillaume Thouvenin)
- fix build with --kerneldir (Maik Hentsche)
- really exit if device assignment fails (Mark McLoughlin)
- fix vga on ia64 (Xiantao Zhang)
- simplify nmi injection from userspace (Jan Kiszka)
- enable virtio zero-copy (Mark McLoughlin)
- also fixes crash in rare cases
- fix display loss on 32-bit hosts
- reduce tlb flushing when resyncing pages (Marcelo Tosatti)
- don't resync global pages on context switch (Marcelo Tosatti)
- improves HIGHMEM performance
- prepopulate shadow on invlpg (Marcelo Tosatti)
- fix kvmclock when HZ != 1000 (Eduardo Habkost)
- fix module unload race oops (Christian Borntraeger)
- reduce stack footprint on large hosts (Rusty Russell)
- reduce capability reporting code duplication
- check for missing pae pdptr on invlpg emulation (Marcelo Tosatti)
- fixes solaris 10 oops
- fix handlig of ack from irq shared between assigned and emulated devices
(Mark McLoughlin)
- fix nmi-vs-irq race for -no-kvm-irqchip (Jan Kiszka)

Kvm-81 can be downloaded here.