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Dataset.save_binary() silently produces a corrupt file when disk fills during write

Status: Open.

#7334 In lightgbm-org/LightGBM;

· timforby opened on Jun 8, 2026

[python-package] Speed up 'import lightgbm' (Summer 2026 edition)

efficiency

maintenance

Status: Open.

#7327 In lightgbm-org/LightGBM;

· jameslamb opened on Jun 2, 2026

[python-package] speed up Booster.predict() (Summer 2026 edition)

efficiency

Status: Open.

#7326 In lightgbm-org/LightGBM;

· jameslamb opened on Jun 2, 2026

LightGBM C API Crash Report: LGBM_BoosterPredictForMat SIGSEGV (v4.6.0.99)

Status: Open.

#7325 In lightgbm-org/LightGBM;

· snailwei opened on Jun 1, 2026

[ci] [dask] Dask tests on macOS are very expensive

dask

maintenance

Status: Open.

#7295 In lightgbm-org/LightGBM;

· jameslamb opened on May 24, 2026

[ci] flaky CI setup: "exit code 4" after wget install on Ubuntu jobs

maintenance

Status: Open.

#7294 In lightgbm-org/LightGBM;

· jameslamb opened on May 24, 2026

[ci] Speed up CI (Summer 2026 edition)

dask

efficiency

maintenance

Status: Open.

#7292 In lightgbm-org/LightGBM;

· jameslamb opened on May 23, 2026

[ci] [python-package] simplify / clarify device selection in pytest tests

gpu (CUDA)Issue is related to the CUDA GPU variant.Issue is related to the CUDA GPU variant.

gpu (OpenCL)Issue is related to the OpenCL-based GPU variant.Issue is related to the OpenCL-based GPU variant.

gpu (ROCm)Issue is related to the ROCm GPU variant.Issue is related to the ROCm GPU variant.

maintenance

Status: Open.

#7281 In lightgbm-org/LightGBM;

· jameslamb opened on May 17, 2026

[RFC] New public API(s) exposing build info?

awaiting review

feature request

gpu (CUDA)Issue is related to the CUDA GPU variant.Issue is related to the CUDA GPU variant.

gpu (OpenCL)Issue is related to the OpenCL-based GPU variant.Issue is related to the OpenCL-based GPU variant.

gpu (ROCm)Issue is related to the ROCm GPU variant.Issue is related to the ROCm GPU variant.

question

Status: Open.

#7273 In lightgbm-org/LightGBM;

· jameslamb opened on May 14, 2026

[cuda] Current CMakeLists.txt is not compatible with CUDA 13.x

gpu (CUDA)Issue is related to the CUDA GPU variant.Issue is related to the CUDA GPU variant.

maintenance

Status: Open.

#7270 In lightgbm-org/LightGBM;

· vm-quant opened on May 12, 2026

Enable CI Support for ppc64le (IBM Power) Architecture

feature

Status: Open.

#7262 In lightgbm-org/LightGBM;

· sandeepgupta12 opened on May 7, 2026

[ci] conda installs produces thousands of empty lines in logs

maintenance

Status: Open.

#7259 In lightgbm-org/LightGBM;

· jameslamb opened on May 4, 2026