Major - Integration to Slack. Learn more here.
Major - Integration to Hipchat. Learn more here.
Major - Custom integration with Webhooks.
Major - Ability to fully customize notifications published to any of the channels: Email, SMS, PagerDuty, Hipchat, Slack, Webhooks and others that will be forthcoming
Moderate - Event logs and other status metrics on the dashboard should now be showing correct timestamps
Minor - Dashboard should no longer show Resource name in parenthesis but rather Azure Website name, for Azure Webapps sites
Minor - Active Alerts dropdown looks better