Source-backed version compatibility
Rundeck Java version compatibility. Rundeck system requirements set Java 17 as the minimum supported production runtime with support through Java 25.
Quick answer
Supported and tested versions have compatibility evidence. Recommended and bundled versions describe upstream choices without establishing compatibility. Versions outside the documented coverage are unknown, not necessarily incompatible.
Supported Java versions
Rundeck system requirements set Java 17 as the minimum supported production runtime with support through Java 25.
Rundeck docs recommend Azul Zulu OpenJDK as the Java distribution used for builds and testing.
high confidence · verified 2026-10-08 · runtime
Primary evidence
Every constraint above is backed by upstream documentation, tagged source, release notes, or another project-owned primary source.
compatibility.fyi