IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Breaking changes
editBreaking changes
editThis section discusses the changes that you need to be aware of when migrating your application from one version of Elasticsearch to another.
As a general rule:
-
Migration between minor versions — e.g.
5.xto5.y— can be performed by upgrading one node at a time. -
Migration between consecutive major versions — e.g.
2.xto5.x— requires a full cluster restart. -
Migration between non-consecutive major versions — e.g.
1.xto5.x— is not supported.
See Upgrading Elasticsearch for more info.