Why Android SDK version 2.1 contains alphabets in its version code
<p>I found Android has SDK version 1.5, 1.6, 2.2, 3.1.. all these versions are combination of . and numeric digits. But when i found SDK version <code>2.1-update1</code> in this case the version code is contains alphabets also (update1). Why is it like that? </p>
