diff --git a/libwvdrmengine/test/demo/ExoPlayerDemo.apk b/libwvdrmengine/test/demo/ExoPlayerDemo.apk
index 5d60f6d2..5c7867c2 100644
Binary files a/libwvdrmengine/test/demo/ExoPlayerDemo.apk and b/libwvdrmengine/test/demo/ExoPlayerDemo.apk differ
diff --git a/libwvdrmengine/test/demo/readme.txt b/libwvdrmengine/test/demo/readme.txt
index a4ceec94..67858a5f 100644
--- a/libwvdrmengine/test/demo/readme.txt
+++ b/libwvdrmengine/test/demo/readme.txt
@@ -1,12 +1,22 @@
-ExoPlayerDemo.apk can be used to do end-to-end verification of your Modular DRM.
+ExoPlayerDemo.apk can be used to do end-to-end verification of Modular DRM.
 
 To install, side load ExoPlayerDemo.apk app to your device:
 
   adb install ExoPlayerDemo.apk
 
-To run, launch ExoPlayer, then choose the Revenge (DASH CENC) clip, which is encrypted
-   using DASH Common Encryption.  Then press "Play" to start playback.  The other clips
-   in the list are clear (i.e. not encrypted).
+To run, launch ExoPlayer, then choose the clip to play.  The
+   Widevine-encrypted DASH CENC assets are in the "WIDEVINE DASH GTS"
+   section.
+
+   These assets test various configurations of the Key Control Block (KCB)
+   with various protections and expirations:
+
+   WV: HDCP not specified (KCB: Observe_HDCP=false)
+   WV: HDCP not required (KCB: Observe_HDCP=true && HDCP=not required && DataPath=normal)
+   WV: HDCP required (KCB: Observe_HDCP=true && HDCP=required && DataPath=normal)
+   WV: Secure video path required (KCB: Observe_HDCP=true && HDCP=not required && DataPath=secure)
+   WV: HDCP + secure video path required (KCB: Observe_HDCP=true && HDCP=required && DataPath=secure)
+   WV: 30s license duration (KCB: test timer expiration)
 
 Notes:
 
@@ -24,5 +34,6 @@ Notes:
   AudioTrack.getTimestamp API to do A/V sync. It will fall back to how it used to do things if
   the API isn't available.
 
-- The apk is still built against API level 18. The features above are accessed via reflection.
-
+- Exoplayer will retrieve a new license when playing "WV: 30s license duration",
+  after the license duration has expired. Integrators should verify by means
+  other than visual inspection that license duration is being enforced.