docs/content/reference/compose-file/legacy-versions.md

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---
title: Legacy versions
description:
keywords: fig, composition, compose, versions, upgrading, docker, version 3, docker compose 3
aliases:
- /compose/compose-file/compose-versioning/
- /compose/compose-file/compose-file-v3/
- /compose/compose-file/compose-file-v2/
- /compose/compose-file/legacy-versions/
---
The legacy versions of the Compose file reference has moved to the [V1 branch of the Compose repository](https://github.com/docker/compose/tree/v1/docs). They are no longer being actively maintained.
The latest and recommended version of the Compose file format is defined by the [Compose Specification](_index.md). This format merges the 2.x and 3.x versions and is implemented by **Compose 1.27.0+**. For more information, see the[History and development of Docker Compose](/manuals/compose/intro/history.md).