Aggregations changesedit

Deprecated global_ordinals_hash and global_ordinals_low_cardinality execution hints for terms aggregations have been removededit

These execution_hint are removed and should be replaced by global_ordinals.

search.max_buckets in the cluster settingedit

The dynamic cluster setting named search.max_buckets now defaults to 10,000 (instead of unlimited in the previous version). Requests that try to return more than the limit will fail with an exception.