Hello Java customers!
We are happy to announce the latest October 2026 patch set update release for the Microsoft Build of OpenJDK. Check our release notes page for details on fixes and enhancements or download and install the binaries today. The source code of our builds are now available on GitHub for further inspection:
Microsoft Build of OpenJDK specific updates
Note: The Microsoft Build of OpenJDK will end support for JDKs 11 and 17 in September of 2027. For more information, please refer to: https://devblogs.microsoft.com/java/plan-your-java-upgrade-ahead-of-microsofts-2027-support-milestones/
OpenJDK 25
- No Microsoft-specific updates for this release.
OpenJDK 21
- No Microsoft-specific updates for this release.
OpenJDK 17
- No Microsoft-specific updates for this release.
OpenJDK 11
- No Microsoft-specific updates for this release.
Summary of Upstream Updates
OpenJDK Vulnerability Advisories for October 2026:
OpenJDK 25
- List of fixes
- For further details, please refer to Oracle’s page on JDK25 consolidated release notes.
OpenJDK 21
- List of fixes
- For further details, please refer to Oracle’s page on JDK21 consolidated release notes.
OpenJDK 17
- List of fixes
- For further details, please refer to Oracle’s page on JDK17 consolidated release notes.
OpenJDK 11
- List of fixes
- For further details, please refer to Oracle’s page on JDK11 consolidated release notes.
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 Azure Linux and Ubuntu. Refer to our documentation.
Questions?
Contact openjdk-support@microsoft.com.
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