This extension has two main functions. 1. It provides simple email notifications for datasets which have a set data-expiry date. The extension relies on a daily cronjob during which datasets are checked if the reminder date is set to the current date. 2. It provides a subscription form snippet which can be added to dataset templates. Users can submit their email address and receive notifications of specific datasets when they are updated. The user can unsubscribe from any datasets by clicking the link at the bottom of the email. Developed and tested with CKAN version 2.5.2 but versions starting from 2.2 should work. Requires Bootstrap 3+ for proper styling.