5.6.1 Release Notes

Also see Breaking changes in 5.6.

Bug fixes

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

Upgrades

Core
  • Upgrade to Lucene-6.6.1. #26535