Android is a mobile phone Operating System officially launched by Google and currently being developed by it. It is an open-source software based on the Linux kernel, and its source code is released by Google as open-source. It was released on September 23, 2008, and the first commercially released phone running Android was the HTC Dream aka T-Mobile G1 (see Ubergizmo’s live blog during that event).
This page lists all the versions of Android and shows you the most important evolutions. Shortcuts:
Android works on many devices, including smartphones, tablets, wearable devices, Android TV, and even cars. Each manufacturer can offer a custom Android version as well, which makes it attractive for them since they can differentiate from one another.
The Android OS we see in our phones is not typically the “stock” (or “pure”) Android OS from Google. Every phone manufacturer can manipulate the original code to create a custom version with both visual and functional changes. However, Google has also partnered with renowned brands like, HTC, Samsung, LG and Motorola, etc. to launch phones with stock Android, known as “Google Nexus”.
Android is known as the most customizable mobile OS even without rooting. Android is designed for touchscreens, so all Android phones are fully or partially touch-based. Using widgets and quick app access icons, it provides all the information right on your phone’s home screen. Furthermore, it also offers great multitasking capability with the ability to navigate between multiple apps at the same time.
Android OS is constantly being developed and new features are added frequently. Apart from basic version updates, Android also gets major update releases that are normally code-named as dessert names, like Cupcake, Donut and KitKat, etc.
This means OEMs won’t need to create their software for the displays and can just use Android’s version
Could lead to standardized pressure-sensitive displays for Android devices in the future
Improved security
Stagefright was one of the scarier security vulnerabilities of Android last year
Android N will be updated to get rid of the problem once and for all by further sandboxing aspects of Android to contain the damage should it happen again
Android 6.0 (Marshmallow) is largely focused on bug fixes and improving overall performance and usability. Although, there are some upgrades and addition of new features, but they all focus on making Android easier to use.
What’s new
Fingerprint Authentication support
Open lock screen and authenticate payments with fingerprints.
Deep Sleep mode to save battery
Apps go to sleep after not touching the phone for a while.
USB Type-C support
New USB standard with better data transfer and charging speed.
Android 5.1 was announced on Mar 9 2015, without major fanfare. The focus was on making the Material Design introduced in Android 5.0 even better along with addition of some useful features.
In case the phone gets lost/stolen, you can lock it remotely.
HD voice calls — Natively supports HD voice calls.
New quick settings shortcuts — Just tap to enable/disable apps in quick settings.
Animations — Few new UI and Icon animations added.
Screen pinning
Lock the screen on a specific app, so only that app could be accessed.
Android 5.0 Lollipop (Oct 27 2014)
In Android 5.0 (Lollipop), the biggest change from android KitKat was its new Material Design. It offered a completely different look with fast animations and intuitive interface.
What’s new
Material Design — New grid-based layout with new animations, transitions and effects like shadows and lightening.
Battery Historian — An app to track current battery consumption of apps.
Fixes to video playback and password failure issues.
Android 4.4 KitKat (Oct 31 2013)
Android 4.4 (KitKat) came with many new features, especially for developers.
Microsoft Exchange support — Microsoft’s mailing server
Live Wallpapers support
Bluetooth 2.1 support
UI updates — Improvements to menus, navigation and keyboard layout, etc.
Android 1.6 Donut (Sep 15 2009)
Android 1.6 offered few features, but very important ones.
What’s new
Gesture Framework — Use gestures to access different options
Accessibility Framework
Turn-by-turn Navigation — turn-by-turn navigation in Google Maps
Android 1.5 Cupcake (Apr 30 2009)
Another tiny yet really important update of features.
What’s new
Virtual keyboard along with prediction
Ability to record and watch videos
Bluetooth A2DP and AVRCP support for bluetooth headsets and remote control
There were also Android 1.0 and Android 1.1 versions, but they didn’t actually had any official names. The whole naming process started from Android Cupcake. Although Android 1.0 and 1.1 did added some basic features and applications like, camera support, YouTube app, Gmail app, Google Maps, Web Browser, download apps from Android market and ability to save attachments from MMS.