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This article provides information about the most recent Azure HDInsight release updates. For information on earlier releases, see HDInsight Release Notes Archive.
Summary
Azure HDInsight is one of the most popular services among enterprise customers for open-source analytics on Azure. Subscribe to the HDInsight Release Notes for up-to-date information on HDInsight and all HDInsight versions.
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Release Information
Release date: Oct 06, 2025
Note
This is a Hotfix / maintenance release for Resource Provider. For more information see, Resource Provider.
Azure HDInsight periodically releases maintenance updates for delivering bug fixes, performance enhancements, and security patches ensuring you stay up to date with these updates guarantees optimal performance and reliability.
This release note applies to
HDInsight 5.1 version.
HDInsight release will be available to all regions over several days. This release note is applicable for image number 2508190809. How to check the image number?
HDInsight uses safe deployment practices, which involve gradual region deployment. It might take up to 10 business days for a new release or a new version to be available in all regions.
OS versions
- HDInsight 5.1: Ubuntu 18.04.5 LTS Linux Kernel 5.4
Note
Ubuntu 18.04 is supported under Extended Security Maintenance(ESM) by the Azure Linux team for Azure HDInsight July 2023, release onwards.
For workload specific versions, see HDInsight 5.x component versions.
New features
Entra Authentication is enabled for Azure HDInsight clusters. User can now choose to have user authentication done by Entra ID.
Grafana login now supported for Entra clusters.
C++ CodeQL scanning enabled for better static analysis coverage.
Managed Identity (MI) based authentication for SQL databases is now supported in non-public clouds. For more information see, Use Managed Identity for SQL Database authentication in Azure HDInsight
Issues fixed
Patched multiple OS-level vulnerabilities across dependencies (qs, braces, connect, debug, etc.).
Disabled local user creation by default to strengthen access control.
Updates
- The following standalone drivers are no longer supported with HDInsight.
Reminder
HDInsight service has transitioned to use standard load balancers for all its cluster configurations due to deprecation announcement of Azure basic load balancer.
Important
By default, creation of any new HDInsight cluster happens with Standard Load Balancers. We recommend referring to the migration guide to recreate the cluster. For any assistance, contact support.
If you have any more questions, contact Azure Support.
You can always ask us about HDInsight on Azure HDInsight - Microsoft Q&A.
We're listening: You’re welcome to add more ideas and other topics here and vote for them - HDInsight Ideas and follow us for more updates on AzureHDInsight Community.
Note
We advise customers to use to latest versions of HDInsight Images as they bring in the best of open source updates, Azure updates, and security fixes. For more information, see, Best practices.