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How this is achieved is left to the connector, as long as it conforms to the rest of the proposal.

The flink.version  that's set in the root pom.xml should be set to the lowest Flink version that's supported. You can't use highest because there are no guarantees that something that's working in e.g. Flink 1.18 is working in Flink 1.17.

Since branches may not be specific to a particular Flink version this may require the creation of dedicated modules for each supported Flink version.

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