We unveiled the latest release of Shippable on February 29th. This release includes over 240 new features and addresses most of the customer feedback we've received over the last few months. Details about the new release are in my blog post here.
A big part of this release is moving to a new yml format that allows for maximum flexibility in configuring your workflows, including access to the Docker CLI in your yml commands.
To ease this transition to the new release, Shippable now includes a built-in yml translator which automatically reads old yml formats and converts them to the new format. This means you do not have to move to the latest format if you don't want to and your projects should continue to just work after your subscription is migrated in the next few days.