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# Changes in This Release for Oracle Big Data Connectors User's Guide

This preface contains:

- Changes in Oracle Big Data Connectors Release 4 (4.0)

## Changes in Oracle Big Data Connectors Release 4 (4.0)

The following are changes in Oracle Big Data Connectors User's Guide for Oracle Big Data Connectors Release 4 (4.0).

This table shows the software versions installed with Oracle Big Data Connectors 4.0:

Connector | Version
--- | ---
Oracle SQL Connector for HDFS | 3.1
Oracle Loader for Hadoop | 3.2
Oracle Data Integrator Application Adapter for HadoopFoot 1 | 12.1.3.0
Oracle XQuery for Hadoop | 4.0.1
Oracle R Advanced Analytics for Hadoop | 2.4

Footnote 1 For information about requirements and instructions to set up and use Oracle Data Integrator Application Adapter for Hadoop, refer to Hadoop chapter of Oracle Fusion Middleware Application Adapters Guide for Oracle Data Integrator.