I was looking at cross-version migration issues, in the hope that we can fix most of them for release 1.6. I noticed that we still use QEMU_VERSION in hardware.
hw/scsi/megasas.c: snprintf(info.package_version, 0x60, "%s-QEMU", QEMU_VERSION); hw/usb/redirect.c:#define VERSION "qemu usb-redir guest " QEMU_VERSION These look like a bug that will break cross version compatibility - I think need to change both instances to qemu_get_version()? megasas also includes the build date/time of QEMU - this clearly removed any hope to be exactly compatible. I'm not sure what to do with respect to this: let's stop the clock at an arbitrary date? Add property for management to control this as well? We also probably want to fix this in -stable versions.
