THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Compatibility, Deprecation, and Migration Plan
The proposed new DataStream API and the old API are incompatible.
The deprecation and migration plan are discussed in the umbrella FLIP.
Test Plan
Comprehensive unit tests and integration tests will be added to ensure the correctness. In addition, some old API based jobs will be selected and rewritten for verification.