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From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 22 Jun 2016 08:53:19 +0200
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Subject: Re: [Qemu-devel] [PATCH 00/13] virtio migration: Flip outer layer
 to vmstate
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To: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
Cc: qemu-devel@nongnu.org, mst@redhat.com, amit.shah@redhat.com, quintela@redhat.com

  Hi,

> I think the first two patches are the most controversial;
> they remove migration support for old version of virtio-net and virtio-se=
rial;
> (for virtio-net versions prior to 0.11 and for virtio-serial prior to 0.1=
3).
> I'm working on the basis that migration has bit rotted enough so
> that the streams aren't migration compatible for that long back
> on upstream - but if anyone knows otherwise please shout.

We've gone great lengths to avoid new versions by using subsections
instead for *years*.  So if we are going to cut live migration support
from ancient versions now:  Can we possibly remove the versioning
altogether?

cheers,
  Gerd