Added * New device: virtio-vsock, backed by Unix domain sockets (GitHub issue #650). See `docs/vsock.md`. Fixed * Updated the documentation for integration tests. * Fixed high CPU usage before guest network interface is brought up (GitHub issue #1049). * Fixed an issue that caused the wrong date (month) to appear in the log. * Fixed a bug that caused the seccomp filter to reject legit syscalls in some rare cases (GitHub issue #1206). * Docs: updated the production host setup guide. * Docs: updated the rootfs and kernel creation guide. Removed * Removed experimental support for vhost-based vsock devices.