diff --git a/4chan_x.user.js b/4chan_x.user.js
index c7da62084..6edf5d9a1 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -3916,8 +3916,9 @@
             ThreadUpdater.set('status', '404', 'warning');
             clearTimeout(ThreadUpdater.timeoutID);
             ThreadUpdater.thread.kill();
-            ThreadUpdater.outdateCount++;
-            ThreadUpdater.set('timer', ThreadUpdater.getInterval());
+            $.event('ThreadUpdate', {
+              404: true
+            });
             break;
           default:
             ThreadUpdater.outdateCount++;
@@ -3988,7 +3989,7 @@
       });
     },
     parse: function(postObjects) {
-      var ID, count, files, index, node, nodes, num, post, postObject, posts, scroll, _i, _len, _ref;
+      var ID, count, deletedFiles, deletedPosts, files, index, node, nodes, num, post, postObject, posts, scroll, _i, _len, _ref;
       Build.spoilerRange[ThreadUpdater.thread.board] = postObjects[0].custom_spoiler;
       nodes = [];
       posts = [];
@@ -4010,6 +4011,8 @@
         nodes.push(node);
         posts.push(new Post(node, ThreadUpdater.thread, ThreadUpdater.thread.board));
       }
+      deletedPosts = [];
+      deletedFiles = [];
       _ref = ThreadUpdater.thread.posts;
       for (ID in _ref) {
         post = _ref[ID];
@@ -4019,11 +4022,18 @@
         ID = +ID;
         if (-1 === index.indexOf(ID)) {
           post.kill();
+          deletedPosts.push(post);
         } else if (post.file && !post.file.isDead && -1 === files.indexOf(ID)) {
           post.kill(true);
+          deletedFiles.push(post);
         }
       }
-      if (count) {
+      if (!count) {
+        ThreadUpdater.set('status', null, null);
+        ThreadUpdater.outdateCount++;
+      } else {
+        ThreadUpdater.set('status', "+" + count, 'new');
+        ThreadUpdater.outdateCount = 0;
         if (Conf['Beep'] && $.hidden()) {
           if (!ThreadUpdater.audio) {
             ThreadUpdater.audio = $.el('audio', {
@@ -4032,20 +4042,20 @@
           }
           ThreadUpdater.audio.play();
         }
-        ThreadUpdater.set('status', "+" + count, 'new');
-        ThreadUpdater.outdateCount = 0;
-      } else {
-        ThreadUpdater.set('status', null, null);
-        ThreadUpdater.outdateCount++;
-        return;
-      }
-      ThreadUpdater.lastPost = posts[count - 1].ID;
-      Main.callbackNodes(Post, posts);
-      scroll = Conf['Auto Scroll'] && ThreadUpdater.scrollBG() && ThreadUpdater.root.getBoundingClientRect().bottom - doc.clientHeight < 25;
-      $.add(ThreadUpdater.root, nodes);
-      if (scroll) {
-        return nodes[0].scrollIntoView();
+        ThreadUpdater.lastPost = posts[count - 1].ID;
+        Main.callbackNodes(Post, posts);
+        scroll = Conf['Auto Scroll'] && ThreadUpdater.scrollBG() && ThreadUpdater.root.getBoundingClientRect().bottom - doc.clientHeight < 25;
+        $.add(ThreadUpdater.root, nodes);
+        if (scroll) {
+          nodes[0].scrollIntoView();
+        }
       }
+      return $.event('ThreadUpdate', {
+        404: false,
+        newPosts: posts,
+        deletedPosts: deletedPosts,
+        deletedFiles: deletedFiles
+      });
     }
   };
 
diff --git a/src/features.coffee b/src/features.coffee
index 35fe715ea..126780521 100644
--- a/src/features.coffee
+++ b/src/features.coffee
@@ -2418,14 +2418,13 @@ ThreadUpdater =
           ThreadUpdater.set 'status', '404', 'warning'
           clearTimeout ThreadUpdater.timeoutID
           ThreadUpdater.thread.kill()
+          $.event 'ThreadUpdate', 404: true
           # if Conf['Unread Count']
           #   Unread.title = Unread.title.match(/^.+-/)[0] + ' 404'
           # else
           #   d.title = d.title.match(/^.+-/)[0] + ' 404'
           # Unread.update true
           # QR.abort()
-          ThreadUpdater.outdateCount++
-          ThreadUpdater.set 'timer', ThreadUpdater.getInterval()
         else
           ThreadUpdater.outdateCount++
           ThreadUpdater.set 'timer',  ThreadUpdater.getInterval()
@@ -2502,32 +2501,41 @@ ThreadUpdater =
       nodes.push node
       posts.push new Post node, ThreadUpdater.thread, ThreadUpdater.thread.board
 
+    deletedPosts = []
+    deletedFiles = []
     # Check for deleted posts/files.
     for ID, post of ThreadUpdater.thread.posts
       continue if post.isDead
       ID = +ID
       if -1 is index.indexOf ID
         post.kill()
+        deletedPosts.push post
       else if post.file and !post.file.isDead and -1 is files.indexOf ID
         post.kill true
+        deletedFiles.push post
 
-    if count
-      if Conf['Beep'] and $.hidden() #and !Unread.replies.length
+    unless count
+      ThreadUpdater.set 'status', null, null
+      ThreadUpdater.outdateCount++
+    else
+      ThreadUpdater.set 'status', "+#{count}", 'new'
+      ThreadUpdater.outdateCount = 0
+      if Conf['Beep'] and $.hidden() # XXX and !Unread.replies.length
         unless ThreadUpdater.audio
           ThreadUpdater.audio = $.el 'audio', src: ThreadUpdater.beep
         ThreadUpdater.audio.play()
-      ThreadUpdater.set 'status', "+#{count}", 'new'
-      ThreadUpdater.outdateCount = 0
-    else
-      ThreadUpdater.set 'status', null, null
-      ThreadUpdater.outdateCount++
-      return
 
-    ThreadUpdater.lastPost = posts[count - 1].ID
-    Main.callbackNodes Post, posts
+      ThreadUpdater.lastPost = posts[count - 1].ID
+      Main.callbackNodes Post, posts
 
-    scroll = Conf['Auto Scroll'] and ThreadUpdater.scrollBG() and
-      ThreadUpdater.root.getBoundingClientRect().bottom - doc.clientHeight < 25
-    $.add ThreadUpdater.root, nodes
-    if scroll
-      nodes[0].scrollIntoView()
+      scroll = Conf['Auto Scroll'] and ThreadUpdater.scrollBG() and
+        ThreadUpdater.root.getBoundingClientRect().bottom - doc.clientHeight < 25
+      $.add ThreadUpdater.root, nodes
+      if scroll
+        nodes[0].scrollIntoView()
+
+    $.event 'ThreadUpdate',
+      404: false
+      newPosts: posts
+      deletedPosts: deletedPosts
+      deletedFiles: deletedFiles