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title: Legacy Documentation | EMQ
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# Legacy Documentation

EMQ recommends that you upgrade products to the most recent version so that you can use the most up-to-date documentation. EMQ documents supported product versions through [EMQ Documentation](https://docs.emqx.com/en/).

If you cannot upgrade to a supported version, EMQ provides legacy documentation for versions that have reached their end-of-life and are no longer recommended for use. EMQ does not maintain or update legacy documentation.

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