Hello, I'm an expert in the field of mobile technology. Let's dive into the topic of "lollipop" in the context of Android phones.

Lollipop was the codename for the fifth version of the Android operating system, officially released in November 2014. It was a significant update that brought a complete visual overhaul to the platform, known as Material Design. This design language introduced a more modern, flat, and intuitive user interface with new animations and responsive interactions.

In addition to the visual changes, Lollipop introduced several new features and improvements, such as:
- Multi-user support for multiple accounts on the same device.
- Battery saver mode to extend the life of the device when the battery is low.
- Project Volta, which was a set of software optimizations aimed at improving battery life.
- Headset support with a new API for developers to create apps that interact with Bluetooth headsets.
- New notifications system allowing users to interact with notifications from the lock screen.
- Recent apps interface was redesigned to show a vertical stack of cards that could be swiped away.

Lollipop also saw improvements in accessibility, security, and performance. It was a major step forward for Android and set the stage for future versions to build upon.

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Android "Lollipop" is a codename for the Android mobile operating system developed by Google, spanning versions between 5.0 and 5.1.1, that is supported with security patches only.read more >>