diff --git a/4chan_x.coffee b/4chan_x.coffee
index 600e6e45b..2844c5182 100644
--- a/4chan_x.coffee
+++ b/4chan_x.coffee
@@ -25,6 +25,7 @@ config =
     'Thread Expansion':    [true, 'View all replies']
     'Thread Hiding':       [true, 'Hide entire threads']
     'Thread Navigation':   [true, 'Navigate to previous / next thread']
+    'Thread Updater':      [true, 'Update threads']
     'Thread Watcher':      [true, 'Bookmark threads']
 
 #utility
@@ -800,6 +801,41 @@ threadF = (current) ->
     if current.nodeName isnt 'CENTER'
         threadF(current)
 
+request = (url, callback) ->
+    r = new XMLHttpRequest()
+    r.onload = -> callback this
+    r.open 'get', url, true
+    r.send()
+
+updateCallback = (res) ->
+    body = n 'body', innerHTML: res.responseText
+    replies = $$ 'td.reply', body
+
+    root = x './/br[@clear]/preceding::table[1]'
+    id = Number $('td.reply, td.replyhl', root).id
+    i = 0
+
+    while (reply = replies.pop()) and (Number reply.id > id)
+        table = x 'ancestor::table', reply
+        inAfter root, table
+        ++i
+
+    $('#updater div.move').textContent = "+#{i}"
+
+updateNow = ->
+    request location.href, updateCallback
+
+updaterMake = ->
+    div = AEOS.makeDialog 'updater', 'topright'
+    html  = "<div class=move>Thread Updater</div>"
+    html += "<div><label>Update<input type=checkbox></label></div>"
+    html += "<div><input type=button value='Update Now'></div>"
+    div.innerHTML = html
+
+    $('div.move', div).addEventListener 'mousedown', AEOS.move, true
+    $('input[type=button]', div).addEventListener 'click', updateNow, true
+    document.body.appendChild div
+
 watch = ->
     id = @nextSibling.name
     if @src is g.favEmpty
@@ -913,6 +949,10 @@ if lastChecked < now - 1*DAY
     GM_setValue('lastChecked', now)
 
 GM_addStyle '
+    #updater {
+        position: fixed;
+        text-align: right;
+    }
     #watcher {
         position: absolute;
     }
@@ -1154,6 +1194,8 @@ if getConfig 'Keybinds'
     document.addEventListener 'keypress', keypress, true
 
 if g.REPLY
+    if getConfig 'Thread Updater'
+        updaterMake()
     if getConfig('Quick Reply') and getConfig 'Persistent QR'
         quickReply()
         $('#qr input[title=autohide]').click()
diff --git a/4chan_x.js b/4chan_x.js
index d0b6fcea4..a15f93314 100644
--- a/4chan_x.js
+++ b/4chan_x.js
@@ -1,5 +1,5 @@
 (function() {
-  var $, $$, AEOS, DAY, a, addTo, arr, as, autoWatch, autohide, b, board, callback, clearHidden, closeQR, config, cooldown, cutoff, d, delform, down, editSauce, el, expand, expandComment, expandThread, formSubmit, g, getConfig, getThread, getTime, hide, hideReply, hideThread, href, html, i, id, iframe, iframeLoad, imageClick, imageExpandClick, imageFull, imageThumb, imageToggle, img, inAfter, inBefore, input, inputs, keyModeInsert, keyModeNormal, keydown, keypress, l1, lastChecked, m, n, navbotr, navtopr, nodeInserted, now, omitted, onloadComment, onloadThread, options, optionsClose, parseResponse, pathname, qrListener, qrText, quickReply, recaptcha, recaptchaListener, recaptchaReload, redirect, remove, replace, replyNav, report, scroll, show, showReply, showThread, slice, span, src, start, stopPropagation, temp, text, textContent, thread, threadF, threads, tn, tzOffset, up, watch, watchX, watcher, watcherUpdate, x, zeroPad, _, _base, _i, _j, _k, _l, _len, _len2, _len3, _len4, _len5, _len6, _m, _ref, _ref2, _ref3, _ref4;
+  var $, $$, AEOS, DAY, a, addTo, arr, as, autoWatch, autohide, b, board, callback, clearHidden, closeQR, config, cooldown, cutoff, d, delform, down, editSauce, el, expand, expandComment, expandThread, formSubmit, g, getConfig, getThread, getTime, hide, hideReply, hideThread, href, html, i, id, iframe, iframeLoad, imageClick, imageExpandClick, imageFull, imageThumb, imageToggle, img, inAfter, inBefore, input, inputs, keyModeInsert, keyModeNormal, keydown, keypress, l1, lastChecked, m, n, navbotr, navtopr, nodeInserted, now, omitted, onloadComment, onloadThread, options, optionsClose, parseResponse, pathname, qrListener, qrText, quickReply, recaptcha, recaptchaListener, recaptchaReload, redirect, remove, replace, replyNav, report, request, scroll, show, showReply, showThread, slice, span, src, start, stopPropagation, temp, text, textContent, thread, threadF, threads, tn, tzOffset, up, updateCallback, updateNow, updaterMake, watch, watchX, watcher, watcherUpdate, x, zeroPad, _, _base, _i, _j, _k, _l, _len, _len2, _len3, _len4, _len5, _len6, _m, _ref, _ref2, _ref3, _ref4;
   var __slice = Array.prototype.slice, __indexOf = Array.prototype.indexOf || function(item) {
     for (var i = 0, l = this.length; i < l; i++) {
       if (this[i] === item) return i;
@@ -25,6 +25,7 @@
     'Thread Expansion': [true, 'View all replies'],
     'Thread Hiding': [true, 'Hide entire threads'],
     'Thread Navigation': [true, 'Navigate to previous / next thread'],
+    'Thread Updater': [true, 'Update threads'],
     'Thread Watcher': [true, 'Bookmark threads']
   };
   AEOS = {
@@ -1057,6 +1058,45 @@
       return threadF(current);
     }
   };
+  request = function(url, callback) {
+    var r;
+    r = new XMLHttpRequest();
+    r.onload = function() {
+      return callback(this);
+    };
+    r.open('get', url, true);
+    return r.send();
+  };
+  updateCallback = function(res) {
+    var body, i, id, replies, reply, root, table;
+    body = n('body', {
+      innerHTML: res.responseText
+    });
+    replies = $$('td.reply', body);
+    root = x('.//br[@clear]/preceding::table[1]');
+    id = Number($('td.reply, td.replyhl', root).id);
+    i = 0;
+    while ((reply = replies.pop()) && (Number(reply.id > id))) {
+      table = x('ancestor::table', reply);
+      inAfter(root, table);
+      ++i;
+    }
+    return $('#updater div.move').textContent = "+" + i;
+  };
+  updateNow = function() {
+    return request(location.href, updateCallback);
+  };
+  updaterMake = function() {
+    var div, html;
+    div = AEOS.makeDialog('updater', 'topright');
+    html = "<div class=move>Thread Updater</div>";
+    html += "<div><label>Update<input type=checkbox></label></div>";
+    html += "<div><input type=button value='Update Now'></div>";
+    div.innerHTML = html;
+    $('div.move', div).addEventListener('mousedown', AEOS.move, true);
+    $('input[type=button]', div).addEventListener('click', updateNow, true);
+    return document.body.appendChild(div);
+  };
   watch = function() {
     var id, text, _base, _name;
     id = this.nextSibling.name;
@@ -1180,6 +1220,10 @@
     GM_setValue('lastChecked', now);
   }
   GM_addStyle('\
+    #updater {\
+        position: fixed;\
+        text-align: right;\
+    }\
     #watcher {\
         position: absolute;\
     }\
@@ -1486,6 +1530,9 @@
     document.addEventListener('keypress', keypress, true);
   }
   if (g.REPLY) {
+    if (getConfig('Thread Updater')) {
+      updaterMake();
+    }
     if (getConfig('Quick Reply') && getConfig('Persistent QR')) {
       quickReply();
       $('#qr input[title=autohide]').click();