Why we need an upgrade when the system is running smoothly.
If you have look at the others UI, App drawer, Home Screen & Widgets they're no worth in comparison with Samsung.
I used many devices other than Samsung, even know The Brand NOKIA is worst in all aspects.
Don't worry about updates on other products, I simply ask you all one thing, compare the Samsung apps with other devices apps, say for example MY FILES, MY GALAXY, SAMSUNG INTERNET, SAMSUNG PAY, SAMSUNG PASS,
Customization apps - SAMSUNG THEMES AND WALLPAPERS, LOCK SCREEN., etc.
Consider Brothers Patiently