Customers that have Azure HDInsight cluster is using TLS version 1.1 or lower are requested to upgrade to clusters have TLS version 1.2.
To enhance security and provide best-in-class encryption for your data, we'll require all connections to Azure HDInsight clusters to be secured using Transport Layer Security (TLS) 1.2 or later beginning March 31, 2025, when connectivity will only be available through TLS 1.2 or later versions. This retirement notice applies only to Azure HDInsight clusters; all other TLS retirements aren’t impacted by this announcement.
Your clusters maybe configured to use TLS 1.1 or lower due to outdated clusters, or other applications connected to Azure HDInsight clusters that only support lower TLS versions.
Upgrade to versions 5.1 of the Azure HDInsight cluster with TLS version 1.2 by March 31 to keep your clusters working as expected. To avoid potential service disruptions, confirm that your resources that interact with Azure services are using TLS 1.2 or later.
If they're already exclusively using TLS 1.2 or later, you don't need to take further action.
If they still have a dependency on TLS 1.0 or 1.1, transition them to TLS 1.2 or later.
If you have questions, get answers from community experts in Microsoft Q&A. If you have a support plan and you need technical help, create a support request .