Software requirements

Java 21 is the recommended Java version for Talend 8.0.1-R2026-06 and later. The following modules can be launched with Java 21:

• Talend Studio
• Talend Administration Center
• Talend JobServer
• Talend Identity and Access Management
• Talend Dictionary Service (Data Stewardship)
• Talend SAP RFC Server
• Talend Data Preparation
• Talend Data Stewardship
• Talend ESB (Application Integration)
• Talend Runtime
• Talend Remote Engine
• Talend Installer

Except for Talend Studio, Java 17 remains supported for backward compatibility. For more information, see Compatible Java Environments.

Data Integration Jobs, Routes, and Data Service Jobs can be compiled and executed with Java 21. Routine compilation level can be set to Java 8, Java 17, or Java 21. The following execution requirements apply:

• Artifacts compiled with Java 21 require Java 21 runtime.
• Artifacts compiled with Java 17 can run on Java 17 or Java 21 runtime.
• The Routine compilation level must not be higher than the Job compilation level.

Big Data Jobs are compiled with Java 8 compliance but include add-opens parameters for Java 17 and Java 21 runtime compatibility in Talend modules. When deployed to a big data cluster, the Job executes with the Java version running on that cluster. Ensure that your Routine compilation level is compatible with the target cluster Java version.

For more information, see Supported Java versions for running Talend artifacts and Setting the compiler compliance level.