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2) Add a new configuration setting to MirrorMaker:

• Name: use.incremental.alter.configs

• Description: Deprecated. Whether to automatically use incrementalAlterConfigs API for syncing topic configurations. This configuration will be removed in Kafka 4.0 and the incrementalAlterConfigs API will be used by default. Users should make sure that the target cluster is running at least Kafka 2.3.0 or later. 

• Type: Boolean

• Default: false

• When set to false, MirrorMaker will keep using deprecated alterConfigs API for syncing topic configurations.

• When explicitly set to true, MirrorMaker will use incrementalAlterConfigs API for syncing topic configurations. If it receives an error from an incompatible broker, the MirrorMaker will report this to the user and fail the connector. 

3) Update syncTopicConfigs()  in MirrorSourceConnector.java to call the updateTopicConfigsUsingIncrementalAlterConfigs() instead of updateTopicConfigs() if enable.incremental.alter.configs is set to true.

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