Issues

• [C++][Parquet] Make parquet/level_comparison.h internal

  Component: C++Component: Parquetgood-first-issueType: enhancement
  apache/arrow#55455 · Filter by author pitrou opened on Nov 9, 2026

• [R][C++] How to build R package without URI parser

  Component: C++Component: RType: bug
  apache/arrow#55454 · Filter by author jonkeane opened on Nov 9, 2026
  1

• [C++][FlightRPC][Python] Async DoGet (and DoAction) in the Flight client

  Component: C++Component: FlightRPCComponent: Python
  apache/arrow#55452 · Filter by author ofer-molad-placer opened on Nov 9, 2026

• [C++] Deprecate char delimiter and use the new field string delimiter_string instead

  Component: C++Type: enhancement
  apache/arrow#55451 · Filter by author HuaHuaY opened on Nov 9, 2026
  

• [Python] Remove deprecated ChunkedArray.data

  Component: Python
  apache/arrow#55450 · Filter by author AlenkaF opened on Nov 9, 2026

• [C++][Parquet] ALP improvements

  Component: C++Component: ParquetType: enhancement
  apache/arrow#55448 · Filter by author wgtmac opened on Nov 9, 2026
  

• [C++][Python] Allow creating a UnionDataset from filtered datasets

  Component: C++Component: PythonType: enhancement
  apache/arrow#55447 · Filter by author adamreeve opened on Nov 9, 2026
  

• [C++] Inconsistent handling of path-segment encoding for directory and filename partitioning

  Component: C++
  apache/arrow#55446 · Filter by author adamreeve opened on Nov 9, 2026
  

• [C++] Null pointer arithmetic in Buffer and MutableBuffer slicing constructors

  Component: C++Type: bug
  apache/arrow#55445 · Filter by author atharva-potdar opened on Nov 8, 2026
  

• [Python] [Perf] Speed up null bitmap creation in NumPy to Arrow conversion

  Component: PythonType: enhancement
  apache/arrow#55443 · Filter by author jules-ch opened on Nov 8, 2026
  

• [C++][CI] Static S3 linking test fails after GCS moved out

  Component: C++Component: Continuous IntegrationType: bug
  apache/arrow#55440 · Filter by author tadeja opened on Nov 7, 2026
  

• [CI][Packaging] Enable Package Linux to select package and distro to build installers

  Component: PackagingType: enhancement
  Feature

  apache/arrow#55435 · Filter by author alinaliBQ opened on Nov 6, 2026
  1

• [C++][FlightRPC][ODBC] Remove Arrow libs from Linux ODBC RPM installer dependency

  Component: C++Component: FlightRPCType: bug
  apache/arrow#55432 · Filter by author alinaliBQ opened on Nov 6, 2026
  1

  

• [C++] std::in_range in column_reader.cc fails to compile with CRAN's macOS 11.3 SDK

  Component: C++Priority: BlockerType: bug
  apache/arrow#55430 · Filter by author thisisnic opened on Nov 6, 2026 · 27.0.0

• [C++] std::invocable in codegen_internal.h fails to compile with CRAN's macOS 11.3 SDK

  Component: C++Priority: BlockerType: bug
  apache/arrow#55429 · Filter by author thisisnic opened on Nov 6, 2026 · 27.0.0

• [C++][S3] Error response body larger than ranged-read buffer yields INTERNAL_FAILURE / "Failed to flush response stream" (no SlowDown retry)

  Component: C++Type: bug
  apache/arrow#55428 · Filter by author ava-windsorb opened on Nov 6, 2026

• [C++][Python] HadoopFileSystem::GetFileInfo reports HDFS I/O errors as NotFound

  Component: C++Component: Python
  apache/arrow#55424 · Filter by author jiangxt2 opened on Nov 6, 2026
  2

• [R] CRAN packaging checklist for version 26.0.1

  Component: R
  apache/arrow#55420 · Filter by author amoeba opened on Nov 5, 2026
  2

  

• [Python] pa.record_batch raises TypeError for tuple data

  Component: PythonType: bug
  apache/arrow#55418 · Filter by author AlenkaF opened on Nov 5, 2026
  7

• [CI][Dev] Remove pull_request_target for workflow labels "awaiting xxx"

  Component: Continuous IntegrationComponent: Developer ToolsType: enhancement
  apache/arrow#55411 · Filter by author raulcd opened on Nov 5, 2026
  

• [Docs][C++][Python] utf8_is_printable and ascii_is_printable docs say an empty string is false, the kernels return true

  Component: C++Component: DocumentationComponent: Python
  apache/arrow#55410 · Filter by author chrikrah opened on Nov 5, 2026

• [C++] coalesce expressions fail for mixed dictionary types

  Component: C++Type: bug
  apache/arrow#55404 · Filter by author zanmato1984 opened on Nov 4, 2026
  

• [C++] ipc::ReadMessage and ReadMessageAsync do not validate negative or overflowing body_length

  Component: C++
  apache/arrow#55400 · Filter by author professor-moody opened on Nov 4, 2026

• [C++][Parquet] Minor Optimization: Optimize some counting about int16_t levels in parquet

  Component: C++Component: ParquetType: enhancement
  apache/arrow#55399 · Filter by author mapleFU opened on Nov 4, 2026
  

• [R][CI] Build the Windows libarrow binary with Rtools45 instead of Rtools40

  Component: Continuous IntegrationComponent: RType: enhancement
  apache/arrow#55398 · Filter by author thisisnic opened on Nov 4, 2026
  3