While high-end Samsung smartphones receive software updates on a regular basis, the company is not that consistent when it comes to mid-range devices.
That being said, it seems like Samsung is trying to change that. We say this as the Samsung Galaxy A5 (2017) has just started receiving Android Nougat update (via SamMobile). Just to recall, the smartphone was originally launched with Android 6.0 Marshmallow. Currently, Samsung is rolling out the update only to the users in Russia. However, it wouldn't be long before the roll-out to other regions begins as well.
So users outside Russia can always check for updates manually by going to Settings ->About Phone -> Software Update. Android Nougat will come with features like split-screen multitasking, more customizable quick settings, improved Google keyboard, enhanced notifications and recent applications window extended battery life, and more.
Other than that, the addition of the Quick Reply feature will let users reply from the notification bar itself without opening any app. Under the hood, Google also incorporated new and improved features that would result in a better device performance and battery life.
So in simple words, the overall user experience will be improved to a great extent.
Major updates to the Android operating system usually are more than 1GB in size. Hence, you should make sure that your device has sufficient storage space.
Once the Android Nougat update arrives, the smartphone should also be fully charged to last the entire update process. Also, it is better to use a Wi-Fi connection rather than the mobile data connection for installing the Nougat update.