Release Notes v. 5.6.4.0

v. 5.6.4.1

Fixed an issue where the SharePoint Online integration would not work correctly because of an underscore.js conflict

Fixed an issue where Featured Results (Best Bets) would not work for Expertise Search pages.
Fixed an issue where NONE/NOT operators would not work in conjunction with Admin Relevancy.
Fixed an issue where Admin Relevancy stage would be skipped when using any other sort than Rank.
Fixed an issue where filters would not be applied correctly for evidence matches on Expertise Search.
Fixed an issue where Learn To Rank would cause a search failure for certain partial-match words.
Fixed an issue where selecting the top node of a Tree refiner would break the search.
Fixed an issue where excluding a multi-word value from a Tree refiner would cause the search to break.