Issues

• [FEA] Use polars.Config.set_engine_affinity in cudf-polars Polars tests

  cudf-polarsfeature request
  NVIDIA/cudf#24478 · Filter by author mroeschke opened on Oct 6, 2026

• [FEA] Partial unpack: per-column byte ranges and column_view construction from packed_metadata_view

  ? - Needs Triagefeature request
  NVIDIA/cudf#24477 · Filter by author nirandaperera opened on Oct 6, 2026
  1

• Synchronize cudf-polars testing with upstream Polars

  cudf-polarstests
  NVIDIA/cudf#24470 · Filter by author vyasr opened on Oct 6, 2026
  2

• [FEA] Reduce AST cold JIT compilation time with nvJitLink and type-erased row operators

  ? - Needs Triagefeature request
  Enhancement

  NVIDIA/cudf#24464 · Filter by author lamarrr opened on Oct 6, 2026 · libcudf JIT Enhancements

• [FEA] Improve cudf_polars distributed sort algorithm

  ? - Needs Triagecudf-polarsfeature request
  NVIDIA/cudf#24463 · Filter by author nirandaperera opened on Oct 6, 2026
  1

• [FEA] Support GROUPS frames in rolling windows

  ? - Needs Triagefeature request
  NVIDIA/cudf#24462 · Filter by author piotrrzysko opened on Oct 6, 2026

• [FEA] Per-row frame offsets for grouped rolling windows

  bugfeature requestJavalibcudf
  NVIDIA/cudf#24456 · Filter by author piotrrzysko opened on Oct 6, 2026
  1

• [FEA] Refactor binary and unary operations to use transform_kernel

  feature requestlibcudf
  Enhancement

  NVIDIA/cudf#24453 · Filter by author lamarrr opened on Oct 6, 2026 · libcudf JIT Enhancements

• Redesign column and column view APIs to use cuda::device_buffer<T> and cudf::device_span<T>

  Enhancement

  NVIDIA/cudf#24431 · Filter by author KyleFromNVIDIA opened on Oct 2, 2026
  1

• [BUG] read_parquet_footers rejects valid mixed-schema Parquet files

  cuIOproposal
  NVIDIA/cudf#24423 · Filter by author praateekmahajan opened on Oct 2, 2026 · Parquet continuous improvement
  3

  

• [FEA] Support LazyFrame.sink_batches in cudf-polars

  cudf-polarsfeature request
  NVIDIA/cudf#24412 · Filter by author rjzamora opened on Oct 1, 2026

• [FEA]: Improve observability of spilling in cudf-polars

  cudf-polars
  NVIDIA/cudf#24403 · Filter by author TomAugspurger opened on Oct 1, 2026

• [FEA]: Improve observability of memory reservations in cudf-polars

  cudf-polars
  NVIDIA/cudf#24402 · Filter by author TomAugspurger opened on Oct 1, 2026

• [FEA]: Track inter-rank transfers for cudf-polars with Quent

  cudf-polars
  NVIDIA/cudf#24401 · Filter by author TomAugspurger opened on Oct 1, 2026

• [Story]: cudf-polars observability improvements

  cudf-polars
  NVIDIA/cudf#24400 · Filter by author TomAugspurger opened on Oct 1, 2026
  

• [BUG] Comparison operators keep nulls while str predicates fill them, on the same string dtype

  NVIDIA/cudf#24393 · Filter by author a-hirota opened on Oct 1, 2026

• [BUG] Series.str.cat(sep=...) emits a trailing separator when trailing elements are null

  buglibcudf
  NVIDIA/cudf#24392 · Filter by author a-hirota opened on Oct 1, 2026
  2

  

• [BUG] Parquet reader returns NUL-filled DELTA_BYTE_ARRAY strings when the file has a page index

  ? - Needs Triagebug
  NVIDIA/cudf#24389 · Filter by author qbacpey opened on Oct 1, 2026

• [FEA] Lift benchmark context capturing out of runner scripts

  cudf.pandascudf-polarsfeature request
  NVIDIA/cudf#24381 · Filter by author mroeschke opened on Sep 30, 2026

• [FEA] Move internal integer utilities from cudf::util to cudf::detail

  improvement
  NVIDIA/cudf#24373 · Filter by author PointKernel opened on Sep 30, 2026
  1

• [FEA] Replace custom cuDF utilities with CCCL equivalents

  improvementlibcudf
  NVIDIA/cudf#24371 · Filter by author PointKernel opened on Sep 30, 2026

• Reenable IWYU

  NVIDIA/cudf#24369 · Filter by author vyasr opened on Sep 30, 2026

• [BUG] pylibcudf ParquetReaderOptions.set_filter does not keep the filter expression alive

  ? - Needs Triagebug
  NVIDIA/cudf#24354 · Filter by author mhaseeb123 opened on Sep 30, 2026 · Parquet continuous improvement

• [FEA] Replace SFINAE in libcudf with C++20 concepts

  ? - Needs Triagefeature requestlibcudf
  NVIDIA/cudf#24341 · Filter by author vuule opened on Sep 29, 2026
  4

• [BUG] ORC reader applies the first stripe's writer timezone to every stripe

  ? - Needs Triagebuglibcudf
  NVIDIA/cudf#24315 · Filter by author vuule opened on Sep 29, 2026