Why symfony 2 uses both, the 'deps' file and the 'composer.json' file?

symfony

Solution

The `deps` file and `bin/vendors` script are used in Symfony 2.0.x, while Symfony 2.1.x has switched to Composer. The `bin/vendors` script was just a stub because Composer was not ready for production when Symfony 2.0.0 was released.

Problem

Why symfony 2 uses both, the `deps` file and the `composer.json` file? I can see some documents tell me to: ``` php bin/vendors install ``` Whilst the other tell me to: ``` php composer.phar install ```

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