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[BUG] Parquet bloom filter pruning drops row groups that contain the value (int8/int16, TIME(MILLIS), -0.0) and fails for decimals

Status: Open.

#24319 In NVIDIA/cudf;

· kita-renji opened on Sep 29, 2026

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

? - Needs Triage

bugSomething isn't workingSomething isn't working

libcudfAffects libcudf (C++/CUDA) code.Affects libcudf (C++/CUDA) code.

Status: Open.

#24315 In NVIDIA/cudf;

· vuule opened on Sep 29, 2026

[BUG] read_parquet ignores prefetch_options={"method": "parquet"} for remote files

Status: Open.

#24313 In NVIDIA/cudf;

· Arthur031221 opened on Sep 28, 2026

[BUG] With regex_flags::ASCII, \S matches only digits and [\W] matches _

bugSomething isn't workingSomething isn't working

libcudfAffects libcudf (C++/CUDA) code.Affects libcudf (C++/CUDA) code.

Status: Open.

#24299 In NVIDIA/cudf;

· Arthur031221 opened on Sep 28, 2026

[BUG] Negative timedeltas: astype(str) output and string parsing disagree with pandas

Status: Open.

#24298 In NVIDIA/cudf;

· Arthur031221 opened on Sep 27, 2026

[BUG] Parquet Snappy decompression can consume uninitialized padded input bytes after RMM pool reuse

? - Needs Triage

bugSomething isn't workingSomething isn't working

Status: Open.

#24274 In NVIDIA/cudf;

· matal-nvidia opened on Sep 23, 2026

[FEA] Top-down migration plan: cudf::memory_resources in every public API, in dependency order

improvementImprovement / enhancement to an existing functionImprovement / enhancement to an existing function

libcudfAffects libcudf (C++/CUDA) code.Affects libcudf (C++/CUDA) code.

Status: Open.

#24268 In NVIDIA/cudf;

· devin-ai-integration opened on Sep 23, 2026

[BUG] ORC timestamps near the Unix epoch are one second off for non-UTC writers with ignore_timezone_in_stripe_footer

bugSomething isn't workingSomething isn't working

libcudfAffects libcudf (C++/CUDA) code.Affects libcudf (C++/CUDA) code.

Status: Open.

#24259 In NVIDIA/cudf;

· igorpeshansky opened on Sep 22, 2026

[FEA] Support polars.scan_delta/iceberg in cudf-polars

cudf-polarsIssues specific to cudf-polarsIssues specific to cudf-polars

Status: Open.

#24247 In NVIDIA/cudf;

· mroeschke opened on Sep 21, 2026

[BUG] CUDA compiler warning for CUDF_HOST_DEVICE on constexpr variables

? - Needs Triage

bugSomething isn't workingSomething isn't working

Status: Open.

#24238 In NVIDIA/cudf;

· bdice opened on Sep 20, 2026

[FEA] Support outer null checks for Array columns in cudf-polars

? - Needs Triage

feature requestNew feature or requestNew feature or request

Status: Open.

#24235 In NVIDIA/cudf;

· 0guban0v opened on Sep 19, 2026

[BUG] Ambiguous union_member::get overloads with GCC 16 break ORC/Parquet writer builds

Status: Open.

#24233 In NVIDIA/cudf;

· karthikeyann opened on Sep 18, 2026