WARNING: Version 5.4 of Elasticsearch has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
Also see Breaking changes in 5.2.
- Geo distance range deprecation #22835
- Include stale replica shard info when explaining an unassigned primary #22826
- Plugin Ingest Attachment
- Plugin Lang Painless
- Reindex API
search.highlight.term_vector_multi_valueas a node level setting #22999
- Upgrade to Lucene 6.4.1. #22978