We are pleased to announce the general availability of IBM^® Semeru Runtime^TM Certified Edition for z/OS version 25. The binaries have been made available on our standard distribution sites as on 10th April 2026.

IBM Semeru Runtime Certified Edition for z/OS version 25 is built with OpenJDK Java class libraries and latest Eclipse OpenJ9 Java Virtual Machine with z/OS unique security value-adds. It is certified to be compliant with Java Standard Edition application programming interface (APIs) specification version 25. This is the latest Java SDK long term support release for z/OS platform. With this release, customers can now stay current, secure as well as leverage the latest Java language features for the modernisation of their Java workloads on z/OS platform.

You can read more about everything this release offers in the GA blog here.

We are also happy to inform that multiple products across the IBM Z platform are simultaneously providing support for developing Java 25 applications on z/OS on the same day as this general availability announcement. See the latest ecosystem product support on z/OS page.

Download Links:

• IBM Semeru Runtime Certified Edition for z/OS version 25 (25.0.1.0) is available on Java Information Manager (JIM) (IBM Only Access).
• Downloads of IBM Semeru Runtime Certified Edition for z/OS version 25 (25.0.1.0) is also available at EPWT site.
• The SMP/E installable format is available only through Shopz. Visit the Shopz website at Shopzseries.

Additional Information:

• Documentation for IBM Semeru Runtime Certified Edition for z/OS version 25 is available here.
• IBM Semeru Runtime Certified Edition for z/OS product page is here.

#releaseannouncement #java #semeruruntimes