The most exiting change is the design, but only stock Android users will be able to cherish that part. Here is what official Google blog has to say in this regards.
“If you’re like me, you jump between a number of different devices throughout the day—reading a magazine on your tablet, checking the time on your watch, chatting with your friends on the phone, even plotting your route in the car. More and more, our screens work together, each helping make your life a little bit easier. But if the design is the way they communicate with us, it often feels like each one is speaking a different language. That’s why we unveiled material design earlier this year: one consistent design language flexible enough to span devices across mobile, desktop, and beyond. Design is a major focus for Lollipop—the latest version of Android—which begins to roll out today.” Google’s Material Design will facelift and enhance utility for all Google Apps like Gmail, Calender, Play Books, etc. Even people with older versions of Android will be able to relish these changes. Third party apps will follow.
Google is pretty serious with the security aspects of Android. Android 5.0 Lollipop will have encryption enabled by default. Then there is Smart Lock, mandatory SELinux Enforcing mode for all apps, etc. There are several other features to look up to , like default ART Runtime, Android L keyboard, new multi tasking panel, animations, etc. Google has started rolling out what it calls, its most ambitious Android update and Android Land is all set to get a lot prettier for sure. Apart from Nexus devices, Android 5.0 Lollipop is confirmed to arrive on HTC One M8, Sony Xperia Z series, LG G3, LG G2, Samsung Galaxy S5, OnePlus One, All Motorola Phones, GPe Devices and Android One phones so far.