This topic describes the release notes for E-MapReduce (EMR) V4.9.X, including the release date and updates.

Release date

April 21, 2021 for EMR V4.9.0

Updates

Component Description
SmartData SmartData is updated to 3.5.0.

For more information, see SmartData 3.5.X.

Spark
  • The issue that adaptive execution does not take effect in some scenarios is fixed.
  • The issue that statistical aggregate functions are used in different manners in Spark and Hive is fixed.
  • The issue that Spark cannot read valid data of the CHAR type from a Hive ORC table is fixed.
HDFS The SM4 encryption algorithm is supported.
Hue Hue is updated to 4.9.0.
Alluxio Alluxio is updated to 2.5.0.
Livy Livy is updated to 0.7.1.