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Optimize non-scoring minimum-should-match queries that fall back to WANDScorer

type:enhancement

Status: Open.

#16626 In apache/lucene;

· kkewwei opened on Sep 3, 2026

IndexWriter rollback deletes uncommitted segment files while pooled readers are still open

type:bug

Status: Open.

#16625 In apache/lucene;

· LuXugang opened on Sep 3, 2026

HNSW merge-reuse graph repair runs single-threaded on the merge thread, slowing down merges

type:bug

Status: Open.

#16618 In apache/lucene;

· ethbak opened on Sep 2, 2026

Improvements to the sandboxed de-duplicating vector format

type:enhancement

Status: Open.

#16595 In apache/lucene;

· kaivalnp opened on Sep 1, 2026

Filtered kNN: accept set built one doc at a time with deletions, cached filter bypassed, every vector scanned for small filters, off-heap lookup per accept test on sparse fields

Status: Open.

#16586 In apache/lucene;

· john-mlika opened on Aug 30, 2026

Allow SortedNumericDocValues Updates when update is actually single valued

type:enhancement

Status: Open.

#16580 In apache/lucene;

· HoustonPutman opened on Aug 28, 2026

Separate term bytes pool from postings pool in TermsHash

type:enhancement

Status: Open.

#16574 In apache/lucene;

· neoremind opened on Aug 28, 2026

incorrect results from SortedNumericDocValuesRangeQuery when using double/float based points+NumericDocValuesField

type:bug

Status: Open.

#16573 In apache/lucene;

· hossman opened on Aug 27, 2026

Should we move vector bulk-scoring APIs to VectorUtilSupport?

type:enhancement

Status: Open.

#16556 In apache/lucene;

· kaivalnp opened on Aug 25, 2026

Should we enable the check CheckedExceptionNotThrown in error prone?

Status: Open.

#16545 In apache/lucene;

· iverase opened on Aug 22, 2026

Implement quantization on fp16 directly without inflating to fp32

type:enhancement

Status: Open.

#16533 In apache/lucene;

· Pulkitg64 opened on Aug 19, 2026

Apply filter before scoring in MaxScoreBulkScorer

type:enhancement

Status: Open.

#16514 In apache/lucene;

· kkewwei opened on Aug 15, 2026