Repository Issue Activity (beta)

#5222 [Bug] Data parallel lgbm throws exception when splitting a leaf

#7327 [python-package] Speed up 'import lightgbm' (Summer 2026 edition)

#6967 [ci] [python-package] support Windows on arm64

#7262 Enable CI Support for ppc64le (IBM Power) Architecture

#7010 [python-package] best_iteration remains 0 when no early stopping is used

#6964 [python-package] Feature Importance Discrepancy in LightGBM 4.5.0 vs 3.2.1 (Same Data & Hyperparameters)

#7014 [C++] LightGBM/utils/common.h:33:10: fatal error: fast_double_parser.h: No such file or directory

#7415 [ci] [python-package] windows builds failing: "DLL load failed while importing _ssl: The specified module could not be found."

#7413 [ci] [R-package] macOS intel jobs failing: "qpdf: no bottle available"

#6983 Built-in R2 (R-squared) metric

#7417 [CUDA] Training crashes when a categorical feature has more than 256 categories (illegal memory access / invalid argument)

#4539 [ci] warnings from cppcheck

#7412 [RFC] macOS Intel (x86_64) support

#3481 [R-package] confusing error when using lgb.train() with an unknown metric

#7009 [python-package] [dask] version 4.6.0 use dask early_stopping hang on

#7122 [CUDA] SIGFPE (Floating point exception) with discrete data when n_unique_values * n_features exceeds threshold

#7399 4.7.0 is ~10x slower than 3.3.5 with n_jobs=-1 on a 128-core machine (CPU oversubscription?)

#7400 [python-package] LGBMClassifier does not label-encode `eval_y`

#7383 [docs] R-package docs for v4.7.0 release have unreplaced `~~VERSION~~` where a version should be

#6990 [ci] AppVeyor jobs failing: "Could not load gvplugin_pango.dll"

#7387 [ci] [R-package] docs builds broken: "Some R documentation files have changed."

#7391 [ci] [python-package] Dask 'no_early_stopping' test failing (clang + Python 3.14 only)

#6792 [python-package] `Booster.refit()` segfaults when label only contains 1 class

#6982 [CUDA] [python-package] Regarding the time consumption of training LightGBM with CUDA

#6922 Memory leak in SWIG java wrappers