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Elastic Docs ›Elasticsearch Reference [5.6] ›Release Notes
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5.6.1 Release Notesedit

Also see Breaking changes in 5.6.

Bug fixesedit

Highlighting
  • Fix percolator highlight sub fetch phase to not highlight query twice #26622
Mapping
  • Fix unmapped_type creation for indices created in 2.x #26602 (issue: #26162)
Similarities
  • Add boolean similarity to built in similarity types #26613

Upgradesedit

Core
  • Upgrade to Lucene-6.6.1. #26535
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