Compatibility with Composer is quite important for VersionPress. We use it to declare and install the dependencies since we decided to drop the compatibility with PHP 5.2. Now it's time to move forward and utilize Composer even more.

VersionPress should support plugins, themes or even WordPress installed via Composer. This includes :

• installation,
• uninstallation,
• updates,
• undo / rollback etc.

Generally, VersionPress will work with composer.json and composer.lock and run according Composer commands. Also, composer require, composer update etc. could run some WP-CLI command to commit the changes.

I've created a Composer-based WordPress stack (codename Pedestal) inspired by Bedrock. We can utilize it to test the workflows with Composer.