There are migration instructions in the docs (see
On Wed, Sep 21, 2016 at 5:32 PM, Nick Kleinschmidt <n...@rasslingcats.com>
> I’m running the old 0.8 consumer storing offsets in Zookeeper, want to
> migrate to the new consumer introduced in 0.9 . I don’t see anything in the
> docs about how to do that while preserving offsets. Do I need to follow the
> steps from the FAQ to migrate to committing offsets to Kafka, then I can
> swap in the new consumer?