I don't think this is actually that hard to handle, you just need a config
to enable the new fields:
Step 1: Implement optional support for the new field with some option that
controls whether it is used
Step 2: Push all servers, still using the old format.
Step 3: Now enable the new field on servers one at a time.

This is a couple of steps but since server pushes are easy that should be

If we want to make this easy for upgrades we can have an
"enable.0.8.compat.mode=true" flag which enables or disables all these
together when we do an official release and document it in the release

On Tue, Jan 29, 2013 at 8:33 AM, Jun Rao <[EMAIL PROTECTED]> wrote:
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