Google Android SDK 2.2 update has been released and is available for download. SDK 2.2 update is recommended for developers who build apps for Android 2.2 Froyo as the latest version of SDK is released to keep things in sync with Android OS 2.2 aka Froyo.
If you are already using Android SDK, you can update to 2.2 using Android SDK Manager. Alternatively, you can download latest version of Android SDK from Android Developers Center website. SDK is available in for Windows, Linux / Ubuntu and Mac OSX (Intel). Here are download links:
Download:
- Android SDK for Windows: android-sdk_r06-windows.zip
- Android 2.2 SDK for Linux (Ubuntu): android-sdk_r06-linux_86.tgz
- Android 2.2 SDK for Mac OSX (Intel): android-sdk_r06-mac_86.zip
Source: Official Android Blog