A new version of the InterBase server, XE7, has been released yesterday. Details of the announcement and core features are described in details by Stephen Ball in his blog at delphiaball.co.uk/2014/12/03/interbase-xe7/.
The most notable feature to me is Change Views, a whole new and extremely efficient way to track changes to a table since you previously queried it, asking for custom delta of the data. No other database has a feature exactly like that!
For more information head to the What's New product page or, even better, sign up for today's first look webinar at forms.embarcadero.com/InterBaseXE7FirstLookWebinar