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Compatibility, Deprecation, and Migration Plan

To be backwards compatible, a new kafka connect configuration property "passworkd.masking" (type Boolean, default False) will be added. If the user want the password to be masked, they can set this to True.

• Existing users will no long get the actual password value from Kafka Connect REST endpoint. In stead, they will get a masked value (e.g. "*********").
• A new deployment of kafka connect is needed

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