The new upgrade has a more flat look, improved notifications, and a major redesign of the core apps, and major performance improvements that addresses some significant missing app categories on all Android devices.
A Facelift for your Android Devices
The new Android 5.0 Lollipop uses a much rounder and flatter icon, bolder bars of colors, and a more user friendly look and feel. The action buttons at the bottom has been cut down to the basic shapes and transparency on the app tray has been replaced with a white background. The major built in Apps has been changes as well and has a themed effect.
“Contacts are blue. Calendar is white. Gmail is red.”
Feature and Built-in Apps Changes
The biggest change is probably with notifications. With Lollipop, you can now set your Apps updates to priority or non-priority; which has its own display setting and alert volume.
Another thing noticeable with Lollipop is that the main Email app now has been integrated and bundled together and supports not only Google accounts; as well as POP/IMAP for services like AOL or Yahoo, and Exchange. Of course it’s far from perfect and shows some issues with verifying credentials across platform, a major step forward still for Android.