Hi Colin, Thanks for the KIP.
>The rationale for deprecating ZK in the 3.4 release is so that we can remove >it in the 4.0 release. (In general, Kafka requires features to be deprecated >for at least one release before they can be removed in the following major >release.) During the deprecation period, ZK mode would continue to be fully >supported. However, we would let people know that KRaft mode is the future. Can you also add that for existing ZK clusters the user will have to first: 1. Upgrade the Kafka cluster to a version between [3.3, 4.0). 2. Convert the ZK cluster to KRaft (pending a future KIP). 3. Upgrade the KRaft cluster to 4.x Does this match your understanding? -- -José
