Release Notes BIOS Basic Input / Output System (BIOS) facilitate the hardware initialization process and transition control to the operating system. Current Version 2.5.5 Release Date August 2017 Previous Version 2.5.5 Importance RECOMMENDED: Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers, and software).
