After Vibe P1, A7000 and K3 Note, Lenovo today rolled out the new Marshmallow Android 6.0 update for its K4 Note phablet also. Lenovo made this announcement on their Twitter account. The update is available OTA (over-the-air). Most of the users have already updated their phones, if you haven’t received the same on your phone, head up to phone settings > About > Software update.
— Lenovo India (@Lenovo_in) June 1, 2016
Lenovo K4 Note was launched early January this year with Android 5.1 Lollipop OS. Once you update to marshmallow, you get so many new features along with all new permission security. The new features include Google Now on Tap, Doze Mode, App permission, and lots more. Apart from all these, it also boost the performance of your device.
So, go ahead and get your K4 Note updated to Android 6.0. Make sure you are connected to WiFi while downloading because it is about 1.6GB which could cause huge bill if you download it via Cellular data.