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Chapter 3. Deprecated Features
3.1. Map/Reduce
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The native Map/Reduce API in JDG 6 has been deprecated in version 6.6.0 and is expected to be removed in version 7.0.0. JDG 7.0.0 will support the Map/Reduce use case via a new Distributed Streams feature, which is based on the Java 8 Stream API.
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