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elasticsearch-js/docs/installation.asciidoc
github-actions[bot] 4fcdb3c5ce [Backport 8.13] [DOCS] Adds compatibility matrix to docs and readme (#2146)
Co-authored-by: Josh Mock <joshua.mock@elastic.co>
(cherry picked from commit 352f73e7c2)

Co-authored-by: István Zoltán Szabó <szabosteve@gmail.com>
2024-02-28 11:55:17 -06:00

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[[installation]]
== Installation
This page guides you through the installation process of the client.
To install the latest version of the client, run the following command:
[source,sh]
----
npm install @elastic/elasticsearch
----
To install a specific major version of the client, run the following command:
[source,sh]
----
npm install @elastic/elasticsearch@<major>
----
To learn more about the supported major versions, please refer to the
<<js-compatibility-matrix>>.
[discrete]
[[nodejs-support]]
=== Node.js support
NOTE: The minimum supported version of Node.js is `v18`.
The client versioning follows the {stack} versioning, this means that
major, minor, and patch releases are done following a precise schedule that
often does not coincide with the https://nodejs.org/en/about/releases/[Node.js release] times.
To avoid support insecure and unsupported versions of Node.js, the
client *will drop the support of EOL versions of Node.js between minor releases*.
Typically, as soon as a Node.js version goes into EOL, the client will continue
to support that version for at least another minor release. If you are using the client
with a version of Node.js that will be unsupported soon, you will see a warning
in your logs (the client will start logging the warning with two minors in advance).
Unless you are *always* using a supported version of Node.js,
we recommend defining the client dependency in your
`package.json` with the `~` instead of `^`. In this way, you will lock the
dependency on the minor release and not the major. (for example, `~7.10.0` instead
of `^7.10.0`).
[%header,cols=3*]
|===
|Node.js Version
|Node.js EOL date
|End of support
|`8.x`
|December 2019
|`7.11` (early 2021)
|`10.x`
|April 2021
|`7.12` (mid 2021)
|`12.x`
|April 2022
|`8.2` (early 2022)
|`14.x`
|April 2023
|`8.8` (early 2023)
|`16.x`
|September 2023
|`8.11` (late 2023)
|===
[discrete]
[[js-compatibility-matrix]]
=== Compatibility matrix
Language clients are forward compatible; meaning that clients support
communicating with greater or equal minor versions of {es} without breaking. It
does not mean that the client automatically supports new features of newer {es}
versions; it is only possible after a release of a new client version. For
example, a 8.12 client version won't automatically support the new features of
the 8.13 version of {es}, the 8.13 client version is required for that.
{es} language clients are only backwards compatible with default distributions
and without guarantees made.
[%header,cols=3*]
|===
|{es} Version
|Client Version
|Supported
|`8.x`
|`8.x`
|`8.x`
|`7.x`
|`7.x`
|`7.17`
|`6.x`
|`6.x`
|
|`5.x`
|`5.x`
|
|===
[discrete]
==== Browser
WARNING: There is no official support for the browser environment. It exposes
your {es} instance to everyone, which could lead to security issues. We
recommend you to write a lightweight proxy that uses this client instead,
you can see a proxy example https://github.com/elastic/elasticsearch-js/tree/master/docs/examples/proxy[here].