Breaking changes in 7.5edit

This section discusses the changes that you need to be aware of when migrating your application to Elasticsearch 7.5.

See also Release highlights and Release notes.

Search Changesedit

Stricter checking for wildcard queries on _indexedit

Previously, a wildcard query on the _index field matched directly against the fully-qualified index name. Now, in order to match against remote indices like i`cluster:index`, the query must contain a colon, as in cl*ster:inde*. This behavior aligns with the way indices are matched in the search endpoint.