http://wccftech.com/install-galaxy-s7-edge-rom/

Getting jealous of all the Galaxy S8 talk? Based on Samsung Galaxy S8 firmware, you can now get all that is new and awesome right on your Samsung Galaxy S7 edge. Today’s featured ROM brings you a number of tweaks along with battery and performance improvements. Follow this guide to read all about this Galaxy S7 edge ROM and steps to flash the firmware on your device.

Note: this tutorial is focused on Samsung Galaxy S7 edge model G930F; do not try this guide on other Android & Samsung devices. For more details of the ROM, support and to download it for other S7 edge variants, visit the official XDA thread.