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HNSW graph reuse during merge is silently disabled under per-field codecs since 10.4.0

type:bug

Status: Open.

#16400 In apache/lucene;

· jeho-rpls opened on Jul 16, 2026

PR benchmark bot for Lucene?

type:enhancement

Status: Open.

#16398 In apache/lucene;

· sgup432 opened on Jul 16, 2026

Test suite TestHnswMergeAbort slows down build

type:test

Status: Open.

#16397 In apache/lucene;

· kaivalnp opened on Jul 15, 2026

Expose per-field on-disk byte-range layout from codec readers

type:enhancement

Status: Open.

#16392 In apache/lucene;

· abernardi597 opened on Jul 14, 2026

Disable verify-changelog-and-set-milestone workflow

type:task

Status: Open.

#16366 In apache/lucene;

· dweiss opened on Jul 6, 2026

·  

11.0.0

Optimize transition lookup in CompiledAutomaton.addTail using binary search

type:enhancement

Status: Open.

#16360 In apache/lucene;

· rajat315315 opened on Jul 6, 2026

Optimize layout computation in SimpleTextBKDWriter.rotateToTree to O(1) per node

type:enhancement

Status: Open.

#16353 In apache/lucene;

· rajat315315 opened on Jul 4, 2026

Optimize IndexedDISI by implementing binary search for sparseDocs in advance methods

type:enhancement

Status: Open.

#16348 In apache/lucene;

· rajat315315 opened on Jul 2, 2026

Improve sorting logic in NeighborArray

type:enhancement

Status: Open.

#16321 In apache/lucene;

· rajat315315 opened on Jul 1, 2026

Optimize FingerprintFilter to directly append to termAttribute, improving performance and reducing memory usage.

type:enhancement

Status: Open.

#16318 In apache/lucene;

· rajat315315 opened on Jul 1, 2026

Use Java vector incubator API in GraalVM

type:enhancement

Status: Open.

#16317 In apache/lucene;

· boris-petrov opened on Jul 1, 2026

Optimizing too many if-else into a switch-case

type:enhancement

Status: Open.

#16314 In apache/lucene;

· rajat315315 opened on Jul 1, 2026