Documentation, Support Java 26 in Open Liberty 26.0.0.4

[Arunkumar-Kallyodan]

Feature epic details

• For the title of this issue, type: Documentation, Development epic name
• Link to development epic: Support Java 26 in Open Liberty open-liberty#33060
• Target GA release: 26.0.0.4

Operating systems

Does the documentation apply to all operating systems?

• Yes
• No; specify operating systems: ______
• No; specify operating systems: - All operating systems that support Java 26 (not z/OS and IBM i)

Summary

The Java SE support page must be updated for the 26.0.0.4 release to include support for Java 26.
This update ensures that users are aware of the new non-LTS Java version supported by Open Liberty, and provides the relevant JVM download links and migration resources once they become available.

Note: Java 26 is a non‑LTS release.

These documentation updates must not be published until Open Liberty 26.0.0.4 reaches GA.

Configuration

List any new or changed properties, parameters, elements, attributes, etc. Include default values and configuration examples where relevant:
No new configuration elements are introduced for this update.

External Links (pending availability)
The following resources are expected but not yet published. They must be added once the links are live:

Temurin 26 download page: https://adoptium.net/temurin/releases/?version=26
IBM Semeru 26 download page: https://developer.ibm.com/languages/java/semeru-runtimes/downloads/?version=26
Java 26 Migration Guide: https://docs.oracle.com/en/java/javase/26/migrate/getting-started.html

Updates to existing topics

To update existing topics, specify a link to the topics that are affected. Include a copy of the current text and the exact text to which it will change. For example: Change ABC to XYZ

Need to update the Java SE support page for 26.0.0.4 to include Java 26. Please update the following values for the new Java 26 row:

1. Java SE version to 26
2. LTS release, set to No
3. Blank out the value for End of Open Liberty support
4. Eclipse OpenJ9 Download to
   a. Link name to IBM Semeru 26
   b. Link URL to https://developer.ibm.com/languages/java/semeru-runtimes/downloads/?version=26
5. HotSpot Download to
   a. Link name to Eclipse Temurin 26
   b. Link URL to https://adoptium.net/temurin/releases/?version=26
6. Migration Advice to
   a. Link name to Java SE 26 migration guide
   b. Link URL to https://docs.oracle.com/en/java/javase/26/migrate/getting-started.html

For reference, here is the previous (Java 25) request -> #7992

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