For Domains with ‘enable pre-release features’ checkbox disabled in the Administrator Control Panel:
The following features are intended for release to these domains on February 22:
– Visible Bcc: Gmail will now provide email recipients an indicator when they are added via Bcc on an email. We will add a visible Bcc header only to messages sent from another Gmail user, not from external sources. Each Bcc recipient will only see themselves on the Bcc list.
– PDF attachments showing the ‘View’ link open with Chrome’s native PDF viewer if available.
Google Apps, Google Apps for Business, Government and Education
All languages supported by Gmail