Version 1.49 (Belladonna) has now been released.
One improvement is that the FireBrick web interface has far better support for mobile devices. This updated style applies to the FB2500, FB2700, FB2900 and the FB6000 models.
We're not expecting the web interface to be used intensely for configuration from mobile devices, but checking the status and diagnostics screens is now much easier.
Changes include a new 'mobile' menu that drops down when you click the icon on the top/right corner and the layout of most of the pages has been tweaked to fit better on narrow screens.
A timeline of software releases since version 1.00 of the FB2x00 series through to today. Use your mouse to zoom and scroll.