# llama.cpp b12090 fixes a zDNN test failure

> The ggml-org release fixes a failing fattn test in ggml-zdnn and provides builds for several platforms, including Ubuntu 26.04 on s390x with zDNN.

Oossa · 2026-11-04 · https://oossa.com/en/llama-cpp-b12090-fixes-a-zdnn-test-failure

ggml-org has released llama.cpp b12090 with a fix for a failing fattn test in ggml-zdnn, listed as change #31583. The release page offers downloads for several systems, including an Ubuntu 26.04 s390x build with zDNN support and macOS builds for Apple Silicon and Intel. The notes do not describe other changes or say whether the fix affects end users beyond the test failure.

## The facts

- The fix is listed as #31583.
- Available downloads include Ubuntu 26.04 s390x with zDNN.

## Why it matters

People using the Ubuntu 26.04 s390x zDNN build can install a release that includes the test fix, though the notes do not specify any change to runtime behavior.

## Sources & references

1. [ggml-org/llama.cpp b12090](https://github.com/ggml-org/llama.cpp/releases/tag/b12090) – llama.cpp, 2026-11-04

Last updated: 2026-11-04