.. index:: single: Upgrading Upgrading ========= Sylius regularly releases new versions according to our :doc:`release process `. Each minor release comes with an ``UPGRADE.md`` file, which is meant to help in the upgrading process. 1. **Update the Sylius library version constraint by modifying the ``composer.json`` file:** .. code-block:: yaml { "require": { "sylius/sylius": "^1.4" } } 2. **Upgrade dependencies by running a Composer command:** .. code-block:: bash $ composer update sylius/sylius --with-all-dependencies If this does not help, it is a matter of debugging the conflicting versions and working out how your ``composer.json`` should look after the upgrade. You can check what version of Sylius is installed by running ``composer show sylius/sylius`` command. 3. **Follow the instructions found in the ``UPGRADE.md`` file for a given minor release.**