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• Clients using High-Level DSL should not be affected with changes proposed.Clients using Processor API will need to implement `void process(K key, V value, Headers headers);` to by-pass or handle Headers. 

Rejected Alternatives

1. Adding Headers to KTable API will mean propagate Headers to Stores that are Key Value specific like RocksDB. If headers are required in stateful operations, clients will need to map headers values first to key or value and then do processing.

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