diff --git a/libraries/session/src/main/java/androidx/media3/session/MediaController.java b/libraries/session/src/main/java/androidx/media3/session/MediaController.java
index 37e512987d..08fa5a41ee 100644
--- a/libraries/session/src/main/java/androidx/media3/session/MediaController.java
+++ b/libraries/session/src/main/java/androidx/media3/session/MediaController.java
@@ -40,6 +40,7 @@ import androidx.media3.common.AudioAttributes;
 import androidx.media3.common.C;
 import androidx.media3.common.DeviceInfo;
 import androidx.media3.common.MediaItem;
+import androidx.media3.common.MediaLibraryInfo;
 import androidx.media3.common.MediaMetadata;
 import androidx.media3.common.PlaybackException;
 import androidx.media3.common.PlaybackParameters;
@@ -520,6 +521,7 @@ public class MediaController implements Player {
 
   /** Creates a {@link MediaController} from the {@link SessionToken}. */
   // This constructor has to be package-private in order to prevent subclassing outside the package.
+  @SuppressWarnings("argument.type.incompatible") // Using this in System.identityHashCode
   /* package */ MediaController(
       Context context,
       SessionToken token,
@@ -530,6 +532,15 @@ public class MediaController implements Player {
       @Nullable BitmapLoader bitmapLoader) {
     checkNotNull(context, "context must not be null");
     checkNotNull(token, "token must not be null");
+    Log.i(
+        TAG,
+        "Init "
+            + Integer.toHexString(System.identityHashCode(this))
+            + " ["
+            + MediaLibraryInfo.VERSION_SLASHY
+            + "] ["
+            + Util.DEVICE_DEBUG_INFO
+            + "]");
 
     // Initialize default values.
     window = new Timeline.Window();
@@ -583,6 +594,17 @@ public class MediaController implements Player {
     if (released) {
       return;
     }
+    Log.i(
+        TAG,
+        "Release "
+            + Integer.toHexString(System.identityHashCode(this))
+            + " ["
+            + MediaLibraryInfo.VERSION_SLASHY
+            + "] ["
+            + Util.DEVICE_DEBUG_INFO
+            + "] ["
+            + MediaLibraryInfo.registeredModules()
+            + "]");
     released = true;
     applicationHandler.removeCallbacksAndMessages(null);
     try {
diff --git a/libraries/session/src/main/java/androidx/media3/session/MediaSession.java b/libraries/session/src/main/java/androidx/media3/session/MediaSession.java
index e52639d50f..22e772a6e4 100644
--- a/libraries/session/src/main/java/androidx/media3/session/MediaSession.java
+++ b/libraries/session/src/main/java/androidx/media3/session/MediaSession.java
@@ -232,10 +232,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 @DoNotMock
 public class MediaSession {
 
-  static {
-    MediaLibraryInfo.registerModule("media3.session");
-  }
-
   // It's better to have private static lock instead of using MediaSession.class because the
   // private lock object isn't exposed.
   private static final Object STATIC_LOCK = new Object();
diff --git a/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java b/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java
index 7b52053fca..80f958c8d6 100644
--- a/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java
+++ b/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java
@@ -111,7 +111,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
   private static final long DEFAULT_SESSION_POSITION_UPDATE_DELAY_MS = 3_000;
 
-  public static final String TAG = "MSImplBase";
+  public static final String TAG = "MediaSessionImpl";
 
   private static final SessionResult RESULT_WHEN_CLOSED = new SessionResult(RESULT_INFO_SKIPPED);
 
@@ -154,6 +154,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
   private ImmutableList<CommandButton> customLayout;
   private Bundle sessionExtras;
 
+  @SuppressWarnings("argument.type.incompatible") // Using this in System.identityHashCode
   public MediaSessionImpl(
       MediaSession instance,
       Context context,
@@ -167,6 +168,15 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
       BitmapLoader bitmapLoader,
       boolean playIfSuppressed,
       boolean isPeriodicPositionUpdateEnabled) {
+    Log.i(
+        TAG,
+        "Init "
+            + Integer.toHexString(System.identityHashCode(this))
+            + " ["
+            + MediaLibraryInfo.VERSION_SLASHY
+            + "] ["
+            + Util.DEVICE_DEBUG_INFO
+            + "]");
     this.instance = instance;
     this.context = context;
     sessionId = id;
@@ -283,6 +293,17 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
   }
 
   public void release() {
+    Log.i(
+        TAG,
+        "Release "
+            + Integer.toHexString(System.identityHashCode(this))
+            + " ["
+            + MediaLibraryInfo.VERSION_SLASHY
+            + "] ["
+            + Util.DEVICE_DEBUG_INFO
+            + "] ["
+            + MediaLibraryInfo.registeredModules()
+            + "]");
     synchronized (lock) {
       if (closed) {
         return;
diff --git a/libraries/session/src/main/java/androidx/media3/session/SessionToken.java b/libraries/session/src/main/java/androidx/media3/session/SessionToken.java
index aa580e9ed5..66f1a276ec 100644
--- a/libraries/session/src/main/java/androidx/media3/session/SessionToken.java
+++ b/libraries/session/src/main/java/androidx/media3/session/SessionToken.java
@@ -73,6 +73,10 @@ import java.util.List;
 //         android.media.session.MediaSessionManager.Callback#onAddressedPlayerChanged
 public final class SessionToken implements Bundleable {
 
+  static {
+    MediaLibraryInfo.registerModule("media3.session");
+  }
+
   private static final long WAIT_TIME_MS_FOR_SESSION3_TOKEN = 500;
 
   /** Types of {@link SessionToken}. */