rapidsai/cuml v25.12.00

on GitHub

What's Changed

🚨 Breaking Changes

• Make dask an optional dependency by @jcrist in #7303
• Using int64_t for HDBSCAN and dropping int by @jinsolp in #7104
• UMAP - delay embedding allocation by @viclafargue in #7313
• Don't infer dtype from model in cuml.explainer by @jcrist in #7358
• Cleanup LinearRegression by @jcrist in #7355
• Cleanup AgglomerativeClustering by @jcrist in #7379
• Cleanup LinearSVC/LinearSVR by @jcrist in #7376
• Require CUDA 12.2+ by @jakirkham in #7408
• Several improvements to Ridge by @jcrist in #7410
• Expose n_iter_ in SVC/SVR by @jcrist in #7461
• Standardize regression predict output dtype by @jcrist in #7464
• Support non-numeric class labels everywhere by @jcrist in #7480
• Rename TSNE n_iter to max_iter by @jcrist in #7500
• Cleanup cuml.multiclass by @jcrist in #7508
• Cleanup SGD/MBSGDClassifier/MBSGDRegressor by @jcrist in #7504

🐛 Bug Fixes

• Avoid pyyaml runtime dependency. by @csadorf in #7312
• Make conversion from scikit-learn SVM to cuML more robust by @csadorf in #7324
• Revert "CI: Auto-assign priority to PRs from linked issues (#7354)" by @csadorf in #7357
• Adding checks for UMAP precomputed KNN feature by @viclafargue in #7300
• Unpin treelite and xfail some tests affected by the XGBoost/treelite incompatibility by @csadorf in #7366
• Fix issue in Dask DBSCAN by @viclafargue in #7359
• CI: Increase nightly CI check window to 14 days. by @csadorf in #7392
• Fix overflow in coordinate descent by @jcrist in #7399
• Fix output argument passed by value causing the copy constructor on owning CSR matrix by @achirkin in #7390
• Fix Dask DBSCAN tree reduction by @viclafargue in #7398
• Fixup the test_kernel_density test. by @csadorf in #7404
• Fetch rapids-cmake configuration for cmake-format in CI style checks by @bdice in #7406
• Fix string slicing dtype mismatch in PorterStemmer for cudf-pandas mode by @csadorf in #7413
• Set the same random_state value for None in cuml.dask.KMeans for all workers by @divyegala in #7417
• Init checks for Dask KMeans by @viclafargue in #7391
• Fix DBSCAN overflow by @divyegala in #7421
• Fix HDBSCAN nn-descent errors with default arguments (min_samples=None) by @viclafargue in #7402
• CI: Xfail test_umap_outliers to mitigate flaky test failure. by @csadorf in #7430
• Ensure n_components < n_cols in cuml.dask.tsvd by @divyegala in #7441
• Skip test_extract_partitions_shape by @csadorf in #7453
• refactored update-version.sh to handle new branching strategy by @rockhowse in #7455
• [BUG] Fix RandomForest Builder Sampling by @tarang-jain in #7422
• Fix the RandomForest sampling bias by @csadorf in #7449
• Pin Cython pre-3.2.0 and PyTest pre-9 by @jakirkham in #7472
• Remove SpectralEmbedding from xfail list by @csadorf in #7487
• Fix UMAP Outliers for small data by @jinsolp in #7473
• Fix PCA sign flip by @zhuxr11 in #7331
• A few small fixes for multi-gpu PCA/TruncatedSVD by @jcrist in #7560
• Remove unnecessary syncthreads in UMAP optimize by @jinsolp in #7575
• Revert precomputed kNN on CPU for UMAP by @jinsolp in #7576
• Pin scikit-learn<1.8 in test dependencies by @csadorf in #7588

📖 Documentation

• Add Spectral Embedding algorithm to README.md by @aamijar in #7348
• Fix and improve build docs by @csadorf in #7383
• Mention pip as install path in README. by @csadorf in #7414
• Use current system architecture in conda environment creation command by @bdice in #7447
• Use sklearn.datasets.fetch_covtype in example notebook by @jcrist in #7581

🚀 New Features

• Provide a static target for libcuml by @divyegala in #7351
• HDBSCAN with NN Descent build option by @jinsolp in #7339
• [FEA] Implement kfold. by @trivialfis in #7296
• [FEA] Feature Importances for Random Forests by @tarang-jain in #7275
• SpectralClustering estimator by @aamijar in #7372

🛠️ Improvements

• Update RAPIDS_BRANCH, codify changes in update-version.sh by @KyleFromNVIDIA in #7268
• Avoid usage of deprecated cudf from_pandas by @TomAugspurger in #7284
• Branch 25.12 merge branch 25.10 by @jcrist in #7291
• Update to rapids-logger 0.2 by @bdice in #7301
• Cleanup TSNE python implementation by @jcrist in #7311
• Cleanup cuml.decomposition by @jcrist in #7316
• A few HDBSCAN cleanups by @jcrist in #7319
• Run the scikit-learn test suite in parallel again by @csadorf in #7315
• A few cuml.neighbors cleanups by @jcrist in #7320
• Cleanup DBSCAN by @jcrist in #7325
• Release GIL in SpectralEmbedding by @jcrist in #7326
• Cleanup *.pxd files and cimports by @jcrist in #7327
• Accelerate linear model predict on C-ordered inputs by @jcrist in #7329
• Remove cuml.ensemble/cuml.dask.ensemble deprecated features by @jcrist in #7332
• Cleanup Ridge by @jcrist in #7330
• Add SparseRandomProjection, AgglomerativeClustering and GaussianRandomProjection to common checks by @betatim in #7307
• Enable sccache-dist connection pool by @trxcllnt in #7344
• Use pinned_host_memory_resource instead of pinned_memory_resource. by @bdice in #7340
• Propagate Dask/UCX exceptions by @viclafargue in #7308
• Add libcuml linkage smoke test by @divyegala in #7343
• Cleanup SVM by @jcrist in #7347
• Remove outdated link flags from CMakeLists.txt by @hcho3 in #7349
• Fix flaky test_logistic_regression_weighting test by @csadorf in #7321
• CI: Auto-assign priority to PRs from linked issues by @csadorf in #7354
• Reduce warnings verbosity in tests by @csadorf in #7322
• Add xgboost to benchmark utilities by @dantegd in #7350
• Use main in RAPIDS_BRANCH by @bdice in #7364
• Use main shared-workflows branch by @bdice in #7369
• Use SPDX for all copyright headers by @KyleFromNVIDIA in #7373
• Add commit to use SPDX copyright headers to git ignore blame revs. by @csadorf in #7381
• CI: Fix the auto-release assignment GA job. by @csadorf in #7380
• Cleanup ElasticNet, Lasso, and CD by @jcrist in #7382
• Add cuVS to python test dependencies by @jinsolp in #7385
• Support KernelDensity in cuml.accel by @jcrist in #7397
• Deprecate normalize option to all linear models by @jcrist in #7415
• Expose n_iter_ in LinearSVC/LinearSVR by @jcrist in #7419
• Bring back KMeansMG by @jcrist in #7420
• Remove reachability.hpp Header by @tarang-jain in #7416
• Add Out-of-Bag (OOB) Score Support to RandomForest by @csadorf in #7401
• Add Third-Party Integration Tests for BERTopic by @csadorf in #7388
• Expose _fit_X and _y on neighbors estimators in cuml.accel by @jcrist in #7437
• Refactor pytests spectral embedding by @aamijar in #7435
• Remove shims for CCCL < 3.1 compatibility by @bdice in #7432
• Cleanup LogisticRegression/QN/LogisticRegressionMG by @jcrist in #7433
• Remove double instantiations for cuml.explainer kernels by @aamijar in #7384
• Migrate to new CCCL memory resource interface by @bdice in #7450
• Expose n_iter_ in Ridge by @jcrist in #7458
• Expose n_iter_ on ElasticNet/Lasso/CD by @jcrist in #7457
• Support of weights argument in KNeighbors by @viclafargue in #7289
• Pin pytest<9.0 by @jcrist in #7468
• Cleanup UMAP and simpl_set by @jcrist in #7456
• Remove cupy allocator utils by @jcrist in #7463
• Make cuml.manifold.umap.find_ab_params public by @jcrist in #7477
• Assorted classifier improvements by @jcrist in #7475
• Improve sparse support in cuml.accel by @jcrist in #7462
• Remove Extra Test in Random Forest by @tarang-jain in #7485
• Update RMM includes from <rmm/mr/device/*> to <rmm/mr/*> by @bdice in #7483
• Use ruff-check, ruff-format instead of black, flake8, isort by @KyleFromNVIDIA in #7429
• Add ruff formatting migration to .git-blame-ignore-revs by @csadorf in #7489
• Bump Treelite to 4.6.1 by @hcho3 in #7471
• Document SVC(probability=True) requires 5 samples per class by @jcrist in #7491
• Expose penalty_normalized and lbfgs_memory in LogisticRegression by @jcrist in #7490
• Remove caveat in cuml.accel docs about PCA/TSVD sign by @jcrist in #7492
• Fixup test_serialize strides check by @jcrist in #7497
• Use sccache-dist build cluster for conda and wheel builds by @trxcllnt in #7440
• Remove global, contextual, and estimator-level memory_type settings by @jcrist in #7501
• Use s3 for preprocessor cache by @trxcllnt in #7510
• Update UMAP random_state doc by @jcrist in #7518
• Remove target_dtype and supporting infra by @jcrist in #7516
• Improved memory efficiency in UMAP given precomputed knn graphs by @jinsolp in #7481
• Temporarily drop xgboost from CI by @jcrist in #7526
• Improve Dask documentation and fix a few minor issues by @csadorf in #7499
• Revert "Temporarily drop xgboost from CI (#7526)" by @csadorf in #7534
• Add minimal support for sklearn 1.8.0rc1 by @jcrist in #7546
• Bump SciPy lower bound to 1.11 by @jcrist in #7551

New Contributors

• @rockhowse made their first contribution in #7455
• @zhuxr11 made their first contribution in #7331

Full Changelog: v25.12.00a...v25.12.00