3.0.x release versions

Preview

This product is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA products are available "as is" and might have limited support. For more information, see the launch stage descriptions.

Component	3.0.0-RC1-debian12/ -ubuntu24/ -rocky9 2025/09/08
Apache Hadoop ^installed	3.4.1
Apache Hive ^installed	4.1.0
Apache Spark ^installed	4.0.0
Apache Tez ^installed	0.10.5
Cloud Storage Connector ^installed	3.1.4
Conscrypt ^installed	2.6
Java ^installed	17
Python ^installed	micromamba 2.0.5 with Python 3.11
Scala ^installed	2.13.14
Zookeeper ^optional component	3.9.3

Notes:

• For support in case of issues or to provide feedback during the preview release, file bugs or feature requests.

• The Zookeeper optional component is available in 3.0 images. You specify optional components that you want to install when you create a cluster (see Add optional components).

• yarn.nodemanager.recovery.enabled and HDFS Audit Logging are enabled by default in 3.0 images.

• micromamba is installed as part of the Python installation.

• The default resource calculator for YARN has been changed from DefaultResourceCalculator to DominantResourceCalculator, which uses the dominant-resource concept to determine resource allocation, such as Memory and CPU allocation. This change impacts Autoscaler, which scales based on the dominant resource usage of the cluster.