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arrow-csv: RecordBatchReader::schema ignores column projection

bug

Status: Open.

Bug

#10382 In apache/arrow-rs;

· yangbaechu opened on Jul 19, 2026

[Parquet] Restore pre-#8715 tolerance for mixed row-group ordinal metadata (or add a lenient reader flag)

Status: Open.

#10381 In apache/arrow-rs;

· zhuqi-lucas opened on Jul 19, 2026

Documentation of arrow-buffer's BooleanBufferBuilder::extend_trusted_len does not include exception safety statement, potentially allowing use-of-uninitialized-memory

bug

Status: Open.

Bug

#10380 In apache/arrow-rs;

· Evian-Zhang opened on Jul 19, 2026

Panics in Buffer::shrink_to_fit() break invariants in arrow-buffer, leading to use of uninitialized memory

bug

Status: Open.

Bug

#10379 In apache/arrow-rs;

· Evian-Zhang opened on Jul 19, 2026

Panics in MutableBuffer::into_buffer() break invariants in arrow-buffer, leading to double free

bug

Status: Open.

Bug

#10378 In apache/arrow-rs;

· Evian-Zhang opened on Jul 19, 2026

Add benchmarks to measure Stream Encoder

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

Status: Open.

Feature

#10373 In apache/arrow-rs;

· Rich-T-kid opened on Jul 18, 2026

parquet-variant: PartialEq on unvalidated deeply-nested variants overflows the stack (SIGABRT)

Status: Open.

#10360 In apache/arrow-rs;

· cetra3 opened on Jul 17, 2026

parquet-variant-compute: shred_variant panics on an object with duplicate field names

Status: Open.

#10359 In apache/arrow-rs;

· cetra3 opened on Jul 17, 2026

Consider deprecating round_upto_multiple_of_64 in favor of checked_next_multiple_of

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

Status: Open.

Feature

#10350 In apache/arrow-rs;

· Rich-T-kid opened on Jul 15, 2026

Release arrow-rs / parquet Minor/Patch version 58.4.0 (July 2026)

Status: Open.

#10349 In apache/arrow-rs;

· mbutrovich opened on Jul 15, 2026

[Variant] Unshredded VariantArray producers annotate the value field as nullable (spec requires required)

Status: Open.

#10315 In apache/arrow-rs;

· sdf-jkl opened on Jul 10, 2026

[parquet-geospatial] Add geo_stats_accumulator_factory to WriterProperties

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

Status: Open.

Feature

#10312 In apache/arrow-rs;

· brawer opened on Jul 9, 2026