8.13.1

• Added support for knn as a query option (#1770)
• Made the dims attribute of the dense vector type optional (#1776)
• Added missing inner_hits option to search.knn() method (#1777)
• Added support for detecting document updates in InnerDoc attributes (#1535)
• Changed _expand__to_dot setting to resolve at runtime (#1633)
• Added explicit error message when unsupported minimum_should_match values are used (#1774)
• Added the EmptySearch class (#1780)
• Added several missing aggregations:
  • AdjacencyMatrix (#1553)
  • CategorizeText (#1588)
  • GeohexGrid (#1590)
  • IPPrefix (#1592)
  • RandomSampler (#1594)
  • GeoLine (#1628)
  • MatrixStats (#1630)
  • TopMetrics (#1706)
• Added params option to the FacetedSearch object (#1500)
• Added support for passing a dictionary in the script option for a document update (#1560)
• Added keys() and items() methods to AttrDict class (#1784)
• Added a to_list() method to the AttrList class (#1584)
• Fixed various documentation issues and typos (#1769, #1615, #1585, #1318, #1223)
• Added a vector search example (#1778)