Difference between 7E 256 and Devo 7E

Hello all this might be very novice like,I haven't been around the deviation community in a sec.Trying to distinguish the difference between 7e 2 versions in the file as I would like to update the latest nightlies but not sure which 1 to use.Is the plain 7E files for the ultimate version and the 256 version for the original?Thanks in advance,all feedback is greatly appreciated.

Devo7E-256 is the build for Devo 7E with MCU replaced for more capable STM32F103RC - it has 256K flash ROM, thus the name. If you didn't do this to your Devo, use plain 7E files. Add-on switches are in any code branch, they should be activated through hardware.ini file.

Thank you very much.