Just a day ago Samsung released February (2017) month security patch for Galaxy S6 and S6 Edge mobiles. Now the successor versions Galaxy S7 and S7 Edge are also getting February patch. The security update for S7 and S7 Edge comes in new build number G930FXXU1DQB7 and G935FXXU1DQB7. Both devices are now currently running on Nougat 7.0 os. Along with security update it may tweaks device performance and fixes known issues/bugs.

We already know software update will roll out in stages via OTA. Based on priority the firmware will hit the samsung devices. Once the OTA update hits your device just download and proceed to the installation process. It will not delete your personal data and also assure the battery level is above 50 percent. You can check for manual update from Settings > About device > System Updates.