We can use a combination of the content tag and Liquid filters to add the current date to an email campaign.
In this example, the "2015" inside the content tags is used as a placeholder when you test the Design System outside of Taxi.
Once the code goes through Taxi, it is replaced with the current year.
The date can be formatted using standard date formatting codes, such as:
<content replace="{{ 'now' | date: '%Y' }}">2015</content>