Github user zentol commented on the pull request: https://github.com/apache/flink/commit/ec28f92ffd042308494d9661a38ab462738611aa#commitcomment-29761887 In flink-core/src/main/java/org/apache/flink/configuration/Configuration.java: In flink-core/src/main/java/org/apache/flink/configuration/Configuration.java on line 744: An option may be for the current and deprecated key(s) at the same time.
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