Azure HDInsight 4.0 will be retired on 31 March 2025 - migrate your HDInsight clusters to 5.1

Azure [HDInsight 4.0](https://learn.microsoft.com/en-us/azure/hdinsight/hdinsight-40-component-versioning) for cluster shapes Hadoop, Kafka, HBase and Interactive Query will retire on 31 March 2025, please transition to HDInsight 5.1 by that date. HDInsight, 5.1 is Generally available from November 1, 2023, this release contains all the [latest versions of supported software](https://learn.microsoft.com/en-us/azure/hdinsight/hdinsight-5x-component-versioning). It comes with all the improvements made in open-source versions and the integrations from Microsoft. Customers running HDInsight 4.0 will no longer receive support and no new clusters can be created after the retirement date. ## **Required action** To avoid service disruptions, please follow the appropriateour instructions based on your workload to migrate to HDInsights 5.1 by 31 March 2025\. * [Hadoop (Oozie, other changes)](https://aka.ms/hdi51hadoop) * [Kafka](https://learn.microsoft.com/en-us/azure/hdinsight/kafka/migrate-5-1-versions) * [HBase](https://learn.microsoft.com/en-us/azure/hdinsight/hbase/apache-hbase-migrate-hdinsight-5-1) * [Interactive Query/Hive](https://aka.ms/hdi51hadoop) We’ll continue to provide [basic support](https://learn.microsoft.com/azure/hdinsight/hdinsight-component-versioning#basic-support) for HDInsight 4.0 until it is retired on 31 March 2025\. ## **Help and support** If you have questions, get answers from community experts in Microsoft Q&A. If you have a support plan and need technical help, create a [support request](https://portal.azure.com/#blade/Microsoft%5FAzure%5FSupport/HelpAndSupportBlade/newsupportrequest). 1. For Issue type, select Technical. 1. For Subscription, select your subscription. 1. For Service, select My services. 1. For Service type, select HDInsight. 1. For Resource, select the resource you need help with. 1. For Summary, type a description of your issue. 1. For Problem type, select the relevant problem type. 1. For Problem subtype, select the relevant problem subtype. * Features * SDK and Tools * Retirements