How can I use the EV3 educational firmware instead of the retail version? I have an EV3 brick from the retail kit, which is currently running the retail firmware. I would like to replace the EV3's firmware with the educational version. How can I do this?
Update: LEGO Education software is now available for free.

https://education.lego.com/en-us/downloads/mindstorms-ev3

Original answer:

You need to purchase the EV3 Education version of the software. It includes the EV3 Education version firmware.


EV3 Education Software (single user licence)
EV3 Software v1.1 Update (includes v1.06E firmware update)