1page.title=Permitted Version Strings for Android 2.2 2@jd:body 3 4<p>As described in Section 3.2.2 of the <a href="/compatibility/android-2.2-cdd.pdf">Android 2.2 Compatibility Definition</a>, 5only certain strings are allowable for the system property 6<code>android.os.Build.VERSION.RELEASE</code>. The reason for this is that 7applications and web sites may rely on predictable values for this string, and 8so that end users can easily and reliably identify the version of Android 9running on their devices.</p> 10<p>Because subsequent releases of the Android software may revise this string, 11but not change any API behavior, such releases may not be accompanied by a new 12Compatibility Definition Document. This page lists the versions that are 13allowable by an Android 2.2-based system. The only permitted values for 14<code>android.os.Build.VERSION.RELEASE</code> for Android 2.2 are:</p> 15<ul> 16<li> 17<p>2.2</p> 18</li> 19<li> 20<p>2.2.1</p> 21</li> 22</ul> 23