Issues

• BufferedUpdates comment refers to DocumentWriterPerThread

  type:documentation
  apache/lucene#16828 · Filter by author hidingmyname opened on Oct 12, 2026

• ArrayIntroSorter constructor javadoc says ArrayInPlaceMergeSorter

  type:documentation
  apache/lucene#16827 · Filter by author hidingmyname opened on Oct 12, 2026

• LongsRef.deepCopyOf javadoc says IntsRef

  type:documentation
  apache/lucene#16826 · Filter by author hidingmyname opened on Oct 12, 2026

• AnalyzingInfixSuggester javadoc names nonexistent class SortedSetDVField

  type:documentation
  apache/lucene#16825 · Filter by author hidingmyname opened on Oct 12, 2026

• DocumentDictionary javadoc refers to parameter withPayload (actual name hasPayloads)

  type:enhancement
  apache/lucene#16824 · Filter by author hidingmyname opened on Oct 12, 2026

• charfilter package doc refers to nonexistent addOffCorrectMapping()

  type:documentation
  apache/lucene#16823 · Filter by author hidingmyname opened on Oct 12, 2026

• vectorhighlight package doc builds SubInfo with 3 args (boost missing)

  type:documentation
  apache/lucene#16822 · Filter by author hidingmyname opened on Oct 12, 2026

• highlight package doc example uses removed APIs (IndexSearcher(Directory), IndexSearcher.doc(int))

  type:documentation
  apache/lucene#16821 · Filter by author hidingmyname opened on Oct 12, 2026

• Possible deprecations for Lucene 11

  type:task
  apache/lucene#16820 · Filter by author romseygeek opened on Oct 12, 2026

• HNSW Graph Connectivity and Recall Degradation with Skewed Duplicate Vectors

  type:enhancement
  apache/lucene#16817 · Filter by author Pranshu-S opened on Oct 12, 2026
  2

• IndexWriter allows updating index sort fields if the index sort is not set in the config

  type:bug
  apache/lucene#16809 · Filter by author harshvardhanrp opened on Oct 10, 2026

• TestDedupScalarQuantizedVectorsFormat.testAllEncodingsMergeAndSearch fails non reproducibly

  type:test
  apache/lucene#16803 · Filter by author spinscale opened on Oct 9, 2026

• TestRescoreTopNQuery.testLateInteractionQuery failed

  type:test
  apache/lucene#16793 · Filter by author spinscale opened on Oct 8, 2026
  1

• Explore ALP encoding for numeric doc values in sandbox

  type:enhancement
  apache/lucene#16792 · Filter by author sgup432 opened on Oct 7, 2026
  3

• Explore binary fuse filters to replace bloom filters

  type:enhancement
  apache/lucene#16780 · Filter by author mikemccand opened on Oct 6, 2026
  7

• Change log for 10.5.2 release is giving 404 error

  apache/lucene#16774 · Filter by author Pulkitg64 opened on Oct 5, 2026
  8

• Could/should Lucene map the same file twice for different hints (RANDOM, SEQUENTIAL) instead of sharing one map?

  type:enhancement
  apache/lucene#16767 · Filter by author mikemccand opened on Oct 2, 2026
  3

• A briefly saturated intra-merge executor can serialize an entire HNSW graph merge

  type:bug
  apache/lucene#16729 · Filter by author abernardi597 opened on Sep 28, 2026
  9

• InitializedHnswGraphBuilder.rebalanceGraph() bypasses HnswGraphBuilder.randSeed — intentional?

  apache/lucene#16726 · Filter by author xzhang9292 opened on Sep 27, 2026
  1

• Complete FP16 (float16) vector support across Lucene

  type:task
  apache/lucene#16725 · Filter by author Pulkitg64 opened on Sep 27, 2026 · 12.0.0
  3

• Add Sinhala language analyzer (si)

  type:enhancement
  apache/lucene#16724 · Filter by author indrajithek opened on Sep 27, 2026
  3

• LogMergePolicy has no explicit delete-driven merge selection

  type:enhancement
  apache/lucene#16701 · Filter by author salvatorecampagna opened on Sep 22, 2026

• IndexSortSortedNumericDocValuesRangeQuery should support floats and doubles

  type:enhancement
  apache/lucene#16698 · Filter by author HoustonPutman opened on Sep 21, 2026 · 11.0.0
  

• [ENH] Improve DocValues bulk decoding using Panama Vector API

  type:enhancement
  apache/lucene#16677 · Filter by author CH-Abhinav opened on Sep 15, 2026
  2

• Can we speed up centroid calculation in the OSQ vector format?

  type:enhancement
  apache/lucene#16674 · Filter by author kaivalnp opened on Sep 15, 2026
  7