The new firmware can be downloaded on the Downloads section of this website.  
​For use with the red C3414 (LX-800) CPU. Will not work with previous CPU hardware versions.  
Enhancements:

• FTP Push Application:  New application which allows SEL History, Event, and Sequential Event Recorder reports to be retrieved from SEL relays and pushed to central repositories for quick analysis.
• Annunciator Panel:  Increased number of points per cell from 16 to 60.  Also increased the number of cells from 30 to 60.
• Data Trap Application:  Data Trap now supports up to 5 simultaneous protocol capture sessions and launched from the Applications Menu block.  
• DNPR Protocol:  Now sets local forced flag in health byte (in variations that send flags) when points are forced on the GUI.

Fixes:

• SEL Protocol: Update to autoconfigure to support new relay models and HIS, EVE, and SER report retrieval.
• Force Data:  Fix analog calculation bug preventing some analog events from being detected.

That’s a good thing. The Secure Firmware includes everything from the legacy firmware with lots of improvements.
Download the Secure Firmware Announcement here.