THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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As such, we don’t support downgrades in this versioning scheme/system (see Non-goals and Future work). So, there is a danger if the cluster operator tries to downgrade the group_coordinator feature flag from v1 to v0. This is because the stream client side shall not downgrade at all, and this would crash the EOS applications. A safe practice is to first downgrade the stream clients, before downgrading the group_coordinator feature flag.
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