# td-agent v2 vs v3 vs v4

{% hint style="danger" %}
The series of td-agent had already reached End of Life (EOL). td-agent should not be newly installed because no support, no new release and no security updates anymore.
{% endhint %}

## Supported Platforms

[ClearCode, Inc.](https://www.clear-code.com) maintains stable packages for Fluentd and canonical plugins as Treasure Agent (the package is called `td-agent`). `td-agent` has v2, v3 and v4. [Chronosphere](https://chronosphere.io/) (formerly Calyptia) maintains stable packages as Calyptia-fluentd as another option. Supported OS is the same as td-agent v4 currently.

| Platform        |  v2 |  v3 | v4(x86\_64) | v4(Arm64) |
| --------------- | :-: | :-: | :---------: | :-------: |
| RedHat/CentOS 5 |  ✔  |     |             |           |
| RedHat/CentOS 6 |  ✔  |  ✔  |             |           |
| RedHat/CentOS 7 |  ✔  |  ✔  |      ✔      |     ✔     |
| RedHat/CentOS 8 |     |  ✔  |      ✔      |     ✔     |
| Amazon Linux 2  |     |  ✔  |      ✔      |     ✔     |
| Ubuntu Precise  |  ✔  |     |             |           |
| Ubuntu Trusty   |  ✔  |  ✔  |             |           |
| Ubuntu Xenial   |  ✔  |  ✔  |      ✔      |           |
| Ubuntu Bionic   |  ✔  |  ✔  |      ✔      |     ✔     |
| Ubuntu Focal    |     |     |      ✔      |     ✔     |
| Debian Jessie   |  ✔  |  ✔  |             |           |
| Debian Stretch  |  ✔  |  ✔  |             |           |
| Debian Buster   |     |  ✔  |      ✔      |     ✔     |
| macOS           |  ✔  |  ✔  |             |           |
| Windows         |     |  ✔  |      ✔      |           |

## Features

### `td-agent` v4

New stable. Major feature updates to `td-agent` v4 are as follows:

* Ruby 2.7
* Fluentd v1
* Arm64 Support

See also [Changes from Treasure Agent 3](https://github.com/fluent-plugins-nursery/td-agent-builder#changes-from-treasure-agent-3).

### `td-agent` v3

Old stable.

* Ruby 2.4
* Fluentd v1
* Windows Support
* Remove `fluentd-ui` from the package

### `td-agent` v2

This is for v0.12 and old distribution users. We don't recommend this version for new deployments.

## How to Install

* [Ubuntu/Debian](/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-deb-td-agent-v4.md)
* [RedHat/CentOS](/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-rpm-td-agent-v4.md)
* [Windows](/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-msi-td-agent-v4.md)
* [macOS](/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-dmg-td-agent-v4.md)
* [RubyGems](/installation/install-by-gem.md)

If this article is incorrect or outdated, or omits critical information, please [let us know](https://github.com/fluent/fluentd-docs-gitbook/issues?state=open). [Fluentd](http://www.fluentd.org/) is an open-source project under [Cloud Native Computing Foundation (CNCF)](https://cncf.io/). All components are available under under [the Apache License 2.0.](https://www.apache.org/licenses/LICENSE-2.0)


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