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Remove per-message flush overhead in Arrow IPC writer

Status: Open.

#9762 In apache/arrow-rs;

· pchintar opened on Apr 18, 2026

Parquet- thoughts on adding Ribbon filters as a bloom alternative?

Status: Open.

#9761 In apache/arrow-rs;

· lyang24 opened on Apr 18, 2026

Add deferred materialization for oversized coalesced takes in BatchCoalescer

Status: Open.

#9760 In apache/arrow-rs;

· ClSlaid opened on Apr 18, 2026

vectorise dict-index bounds check

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

Status: Open.

#9747 In apache/arrow-rs;

· Dandandan opened on Apr 16, 2026

Incorrect accounting in Interner::estimated_memory_size

bug

Status: Open.

#9744 In apache/arrow-rs;

· mzabaluev opened on Apr 16, 2026

Fuzz testing for parquet errors vs panic

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

Status: Open.

#9742 In apache/arrow-rs;

· alamb opened on Apr 16, 2026

Parquet dictionary encoding fallback is sub-optimal, may violate writer parameters

Status: Open.

#9739 In apache/arrow-rs;

· mzabaluev opened on Apr 16, 2026

New crates for take and partition kernels (for use by REE)

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

Status: Open.

#9737 In apache/arrow-rs;

· alamb opened on Apr 16, 2026

RecordBatch::normalize() does not propagate top level null bitmap into the results

bug

Status: Open.

#9732 In apache/arrow-rs;

· sqd opened on Apr 15, 2026

Column performance: run-proportional read/write cost

bug

Status: Open.

#9731 In apache/arrow-rs;

· HippoBaro opened on Apr 15, 2026

Add benchmark for cast from/to decimals

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

Status: Open.

#9728 In apache/arrow-rs;

· klion26 opened on Apr 15, 2026

Add a security policy for arrow-rs

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

Status: Open.

#9727 In apache/arrow-rs;

· alamb opened on Apr 15, 2026