Samsung recently started rolling out the February Security Update for the Galaxy S6, Galaxy S6 Edge, and the Galaxy A3 (2016). The build number of the latest patch for the Galaxy S6 is G920FXXU5DQAJ, while the Galaxy S6 Edge is receiving the software version G925FXXU5DQAJ. Finally, owners of the Galaxy A3 (2016) are reporting receiving a notification prompting them to download the firmware version A310FXXU2BQB1. The updates for the Galaxy S6 and the Galaxy S6 Edge fix a number of vulnerabilities of the Android operating system but seemingly don't ship with any other additions. On the other hand, the Galaxy A3 (2016) patch also introduces a number of performance and stability improvements. The February Security Update for the Galaxy A3 (2016) initially debuted in the Netherlands and is expected to make its way to other users in Europe in the coming days. The patch is just over 226MB in size and is being pushed out as an over-the-air (OTA) update. If you're feeling impatient, you may be able to trigger the download manually by opening the "About Phone" menu of the Settings app and tapping the "Software updates" option.
For one reason or another, the largest phone maker in the world decided to update the security level of the Galaxy A3 (2016) before doing the same for its successor, the Galaxy A3 (2017) which only hit select markets last month. Regardless, Samsung is surely already working on the February Security Update for this year's Galaxy A3 so it's only a matter of time before that patch also starts rolling out worldwide. The Galaxy S6, Galaxy S6 Edge, and the Galaxy A3 (2016) are all still running Android Marshmallow and it remains to be seen how long Samsung will take to update these devices to Nougat. While the Galaxy S6 and the Galaxy S6 Edge originally shipped with Android 5.0.2 Lollipop, both devices should receive another major software update before the end of their update cycle.
The Seoul-based consumer electronics manufacturer also recently started pushing out the February Security Update for the Galaxy A8 and the Galaxy J5 (2016) after releasing the same patch for the Galaxy J5 Prime and the Galaxy J7 Prime earlier this month. More Samsung-made devices will likely receive new security patches in the coming weeks.