As we already told you in the past months, Android 6.0 Marshmallow has not yet reached even 1% of Android devices. Seen this way, the update to Android 6.0.1 can be a big surprice for many, since it is an upgrade of the latest version of the famous operating system, close to be part of the Samsung Galaxy S6.
As said, Android 6.0.1 Marshmallow update for the Samsung Galaxy S6 is very close and, unlike what Samsung done with Android 5.1.1 Lollipop (and seeing the poor performance of that update), has launched a beta program for the update to Android Marshmallow for users to report possible bugs and errors. Although not officially, Samsung has begun to release the update to Android 6.0.1 Marshmallow for beta users on selected Samsung Galaxy S6 devices. As we have seen in some of the leaks have confirmed that users Marshmallow works quite well in the S6 but for now, it is not the final version.
The beta program started in South Korea and has been extended to some Samsung Galaxy S6 from UK. The update to Android 6.0.1 does not bring big changes, but all the important news of Marshmallow are also here: new emojis, improved performance, software updates when you sleep, it allows you customize the status bar, reduce speed when scrolling to avoid flicker or delays and allows the processor to calculate softer.
Remember that the company has made only this update available to all users who have signed up for the beta program. Registration is now closed and, officially, it is impossible to install Marshmallow unless you wait for the official version. If you are a beta tester updating the Galaxy S6 or Galaxy S6 Edge to Android 6.0.1 Marshmallow just have to go to Settings > About Device > Software update via OTA to update the software.
We cannot forget that the beta may be unstable and take some time to correct all errors but will not be worse than the first official versions of Android 5.1 Lollipop. Samsung did not give release dates for the official version of Android 6.0.1 for the Galaxy S6 but seeing progress and considering that there are no serious problems in the betas most likely the official update to Marshmallow would start mid February.