The Android Software Development Kit (SDK) is a crucial part of Android development for beginners to come to grips with.

Android development starts with the Android SDK - a collection of tools needed to build any kind of Android app. Discover what's included and how to use it.

The Android tools team (Tor and Xav) just dropped off the latest ADT and SDK Tools at the Android Tools download site, bringing both up to version 14.

Along with the SDK release, Google has made available SDK Tools r21, the Android NDK, and of course some helpful API documents.

Up until now, these tiny tools have been bundled in the gigantic Android SDK, but Google will finally let you download these tools on their own.

As previously reported, Google has followed up their official release of Android 5.0 Lollipop earlier this week with the announcement that the full Android 5.0 SDK is now ready for developers to ...

For all intents and purposes, Google seemed to have the right idea. However, things have just changed. Android's SDK - everything required to rebuild the OS - is now considered non-free software.