Hi All,
I've forked the VirtIO specification into a Linaro repo for us to work on it:
https://github.com/Linaro/virtio-msg-spec
I've set the default branch to "virtio-msg-alpha" with the intention of re-basing and squashing commits before we post to the list.
Once PRs are merged it triggers a rebuild of the draft spec which you can find in:
https://github.com/Linaro/virtio-msg-spec/releases
Hopefully the working-draft just gets overwritten each time.