Java OpenJDK April 2025 Patch & Security Update

Hello Java customers!

We are happy to announce the latest April 2025 patch & security update release for the Microsoft Build of OpenJDK. Download and install the binaries today.

• OpenJDK 21.0.7
• OpenJDK 17.0.15
• OpenJDK 11.0.27

Check our release notes page for details on fixes and enhancements. The source code of our builds is available now on GitHub for further inspection: jdk21u, jdk17u, jdk11u.

Container images will also be updated, and soon we will be upgrading the base OS layer. Read this other announcement for details.

Microsoft Build of OpenJDK specific updates

OpenJDK21

• Backport of JDK-8350609: Cleanup unknown unwind opcode (0xB) for windows (Enhancement – P3)
• Enabled GPU selection hinting in Windows builds using NvOptimusEnablement and AmdPowerXpressRequestHighPerformance
  • Exported driver hints to prefer high-performance GPU (NVIDIA/AMD) from the JVM
  • Useful in environments like Minecraft, IDEs, or ML tooling to ensure GPU utilization

OpenJDK17

• Backport of JDK-8350609: Cleanup unknown unwind opcode (0xB) for windows (Enhancement – P3)

OpenJDK11

• No Microsoft-specific updates for this release.

Special notes

• This release of the Microsoft Build of OpenJDK we have started shipping packages for SUSE Linux. Please see our Install page for details.

Summary of Upstream Updates

OpenJDK 21

• List of fixes
• See the OpenJDK Vulnerability Advisory

OpenJDK 17

• List of fixes
• See the OpenJDK Vulnerability Advisory

OpenJDK 11

• List of fixes
• See the OpenJDK Vulnerability Advisory

OpenJDK 8

We continue to provide support on Azure and internally at Microsoft for OpenJDK 8 binaries of Eclipse Temurin built by the Eclipse Adoptium project. To facilitate its usage, we ship container images of OpenJDK 8 on top of CBL-Mariner and Ubuntu. Refer to our documentation.

OpenJDK 8 (latest)

Questions?

Contact openjdk-support@microsoft.com.

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