8.4.3 release notes

Upgrading to Enterprise Search 8.4.3? See Upgrading and migrating.

Mitigated increased load to Elasticsearch when using /api/as/v1/engines/[ENGINE]/documents endpoint to fetch documents by IDs.
Fixed a performance issue with the Elastic Crawler where the Elasticsearch index _mapping was queried too frequently.
Fixed issues where public search keys and private write keys had access to list engines.
Fixed an issue where the Elastic Web Crawler would not trigger scheduled crawls.
Query suggestion API works for Elasticsearch based Engines.