We are pleased to announce the general availability of IBM^® Semeru Runtime™ Certified Edition for z/OS^® v11.0.29.1, v17.0.17.1 and v21.0.9.1 (4Q25 Intermediate Update that fixes critical bug in the 4Q25 Quarterly Updates). These releases contain a security fix that addresses a critical bug in the 4Q25 Quarterly Updates of IBM Semeru Runtime Certified Edition for z/OS. The binaries have been made available on our standard distribution sites as on 18^th Dec 2025.

If you are using IBM Semeru Runtime Certified Edition for z/OS v11.0.29.0, v17.0.17.0 and/or v21.0.9.0, you are strongly advised to upgrade to the respective .1 release.

Download Links:

• IBM Semeru Runtime Certified Edition for z/OS 11.0.29.1, 17.0.17.1 and 21.0.9.1 are available on Java Information Manager (JIM) (IBM Only Access).
• Downloads of IBM Semeru Runtime Certified Edition for z/OS 11.0.29.1, 17.0.17.1 and 21.0.9.1 are 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 11 is available here.
• Documentation for IBM Semeru Runtime Certified Edition for z/OS Version 17 is available here.
• Documentation for IBM Semeru Runtime Certified Edition for z/OS Version 21 is available here.