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Upgradingedit
Before upgrading Elasticsearch:
- Consult the breaking changes docs.
- Test upgrades in a dev environment before upgrading your production cluster.
- Always back up your data before upgrading. You cannot roll back to an earlier version unless you have a backup of your data.
Elasticsearch can usually be upgraded using a rolling upgrade process, resulting in no interruption of service. This section details how to perform both rolling upgrades and upgrades with full cluster restarts.
To determine whether a rolling upgrade is supported for your release, please consult this table:
| Upgrade From | Upgrade To | Supported Upgrade Type |
|---|---|---|
|
| |
|
| |
|
| Rolling upgrade (where `y > x `) |
Take plugins into consideration as well when upgrading. Most plugins will have to be upgraded alongside Elasticsearch, although some plugins accessed primarily through the browser (_site plugins) may continue to work given that API changes are compatible.