is it necessary to keep older versions of Android SDK installed with Android SDK Manager?
<p>In the Android DSK Manager under "Installed Packages", I see things like:</p>

<pre><code>SDK Platform Android 3.2
SDK Platform Android 3.1
SDK Platform Android 3.0
SDK Platform Android 2.3
SDK Platform Android 2.2
SDK Platform Android 2.1
SDK Platform Android 1.6
SDK Platform Android 1.5
</code></pre>

<p>Is it necessary to keep the older SDKs, if I am programming with the latest SDK?</p>
