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[C++] Fix shellcheck errors in cpp/build-support/*-flatbuffers.sh

Component: C++

Type: enhancement

Status: Open.

#50917 In apache/arrow;

· hiroyuki-sato opened on Aug 20, 2026

[Format] Allow TimestampType to annotate FLBA(12)

Component: Format

Type: enhancement

Status: Open.

#50915 In apache/arrow;

· divjotarora opened on Aug 19, 2026

[C++][Dataset] Replace RapidJSON with JsonWriter in JSON Dataset

Component: C++

Type: enhancement

Status: Open.

#50913 In apache/arrow;

· Reranko05 opened on Aug 19, 2026

[Format] Tolerate unrecognized logical/physical type combinations when reading

Component: Format

Type: enhancement

Status: Open.

#50910 In apache/arrow;

· divjotarora opened on Aug 18, 2026

[Python][C++] SIGSEGV: NULL deref in bundled mimalloc mi_thread_init when first pyarrow import and first allocation happen on a short-lived thread

Status: Open.

#50908 In apache/arrow;

· kaushal9696 opened on Aug 18, 2026

[C++] Support 1D tensors in SparseCSR/CSC matrix conversion

Component: C++

Type: enhancement

Status: Open.

#50906 In apache/arrow;

· pratyushadk opened on Aug 18, 2026

[C++] Replace RapidJSON with simdjson in tensor extension types

Component: C++

Type: enhancement

Status: Open.

#50901 In apache/arrow;

· Reranko05 opened on Aug 18, 2026

[CI] assume AWS role via GitHub OIDC for sccache S3

Component: Continuous Integration

Type: enhancement

Status: Open.

#50899 In apache/arrow;

· paultiq opened on Aug 18, 2026

[Python] Typo in ORC writer docstring: LZ0 should be LZO

Status: Open.

#50897 In apache/arrow;

· maupatel opened on Aug 17, 2026

[C++][Gandiva] Out-of-bounds read in soundex_utf8 mappings lookup

Component: C++

Component: Gandiva

Status: Open.

#50893 In apache/arrow;

· Arawoof06 opened on Aug 17, 2026

[C++][Parquet] Introduce FileType reference implementation

Component: C++

Component: Parquet

Type: enhancement

Status: Open.

#50891 In apache/arrow;

· HuaHuaY opened on Aug 17, 2026

[C++] is_null kernel does not propagate nan_is_null for nested types

Component: C++

Type: bug

Status: Open.

#50889 In apache/arrow;

· hadrian-reppas opened on Aug 16, 2026