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Introduce <code>NullBuffer::try_from_unsliced</code> to simplify array construction

Status: Open.

#9385 In apache/arrow-rs;

· liamzwbao opened on Feb 9, 2026

Parallel Parquet Reading

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9381 In apache/arrow-rs;

· pmarks opened on Feb 9, 2026

Arrow-csv does not update null flag in <code>Field</code> on inference

bug

Status: Open.

#9380 In apache/arrow-rs;

· realonbebeto opened on Feb 9, 2026

Optimize <code>from_bitwise_binary_op</code>

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9378 In apache/arrow-rs;

· Dandandan opened on Feb 8, 2026

Missing tests - <code>arrow::row</code> has logic for encoding <code>RunEndEncoded</code> data type but no tests

Status: Open.

#9377 In apache/arrow-rs;

· rluvaton opened on Feb 8, 2026

Use <code>u32</code> or <code>i32</code> consistently for ByteView length

Status: Open.

#9371 In apache/arrow-rs;

· alamb opened on Feb 6, 2026

Error "Not all children array length are the same!" when decoding rows spanning across page boundaries in parquet file when using <code>RowSelection</code>

bug

Status: Open.

#9370 In apache/arrow-rs;

· jonded94 opened on Feb 6, 2026

Panic when concatenating some dictionary arrays with u8 keys and 256 total values

bug

Status: Open.

#9366 In apache/arrow-rs;

· JakeDern opened on Feb 5, 2026

Optimize <code>from_bitwise_unary_op</code>

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9364 In apache/arrow-rs;

· Dandandan opened on Feb 5, 2026

Support <code>RunEndEncoded</code> arrays in <code>arrow-json</code>

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9359 In apache/arrow-rs;

· Jefffrey opened on Feb 5, 2026

Add fuzz regression testing to parquet/arrow/csv readers

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9358 In apache/arrow-rs;

· alamb opened on Feb 5, 2026

Split up Parquet async reader tests

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9348 In apache/arrow-rs;

· sdf-jkl opened on Feb 3, 2026