The giant Smartphone maker Samsung has now started rolling out a software update for the Galaxy S6 and S6 edge+ flagship Smartphones in India and the Nordic countries, which includes the latest Android security patch from December 2015.
The update is available OTA (Over The Air) and it weighs around 100MB in size. It improves security, stability of voice calls and other performances. Remember that after applying the update downgrading won’t be possible for the company’s security policy.
The OTA update notification should automatically pop up on your device when it is available for you. You can always check for the latest software update manually by heading to Settings -> About Device -> Software Update.