diff --git a/index.html b/index.html
index 7f575d37..95e595b8 100644
--- a/index.html
+++ b/index.html
@@ -286,6 +286,7 @@
 
 <script src="js/helper.js"></script>
 <script src="js/data.js"></script>
+<script src="js/update.js"></script>
 <script src="js/state.js"></script>
 <script src="js/bookmarks.js"></script>
 <script src="js/control.js"></script>
diff --git a/js/bookmarks.js b/js/bookmarks.js
index 876e6721..ec0174d8 100644
--- a/js/bookmarks.js
+++ b/js/bookmarks.js
@@ -215,8 +215,7 @@ var bookmarks = (function() {
     get: get,
     add: add,
     edit: edit,
-    remove: remove,
-    restore: restore
+    remove: remove
   };
 
 })();
diff --git a/js/control.js b/js/control.js
index 05c0c49a..d50d608a 100644
--- a/js/control.js
+++ b/js/control.js
@@ -108,7 +108,7 @@ var control = (function() {
     _layout();
   };
 
-  var _dependents = function(options) {
+  var _dependents = function() {
     var _date = function() {
       var activeCount = 0;
       var toCheck = [state.get().header.date.show.date, state.get().header.date.show.day, state.get().header.date.show.month, state.get().header.date.show.year];
diff --git a/js/data.js b/js/data.js
index 6180e921..053a76f7 100644
--- a/js/data.js
+++ b/js/data.js
@@ -16,6 +16,7 @@ var data = (function() {
 
   var save = function() {
     var data = {
+      version: version.get(),
       state: state.get(),
       bookmarks: bookmarks.get()
     };
@@ -28,17 +29,37 @@ var data = (function() {
     return data;
   };
 
+  var _checkForSavedData = function(data) {
+    if (data) {
+      console.log("data loaded");
+      if (!("version" in data) || data.version != version.get()) {
+        console.log("data version found less than current");
+        data = update.render(data);
+        set(saveName, JSON.stringify(data));
+      } else {
+        console.log("data version =", version.get());
+      };
+    } else {
+      console.log("no data found to load");
+    };
+  };
+
+  var init = function() {
+    _checkForSavedData(load());
+  };
+
   var wipe = function() {
     clear(saveName);
   };
 
   return {
+    init: init,
     save: save,
     clear: clear,
     set: set,
     get: get,
-    wipe: wipe,
-    load: load
+    load: load,
+    wipe: wipe
   };
 
 })();
diff --git a/js/helper.js b/js/helper.js
index d879f7e5..7b882fe0 100644
--- a/js/helper.js
+++ b/js/helper.js
@@ -69,16 +69,16 @@ var helper = (function() {
     return object;
   };
 
-  var applyOptions = function(defaultOptions, options) {
-    if (defaultOptions && options) {
-      if (options) {
-        for (var key in options) {
-          if (key in defaultOptions) {
-            defaultOptions[key] = options[key];
+  var applyOptions = function(options, override) {
+    if (options && override) {
+      if (override) {
+        for (var key in override) {
+          if (key in options) {
+            options[key] = override[key];
           };
         };
       };
-      return defaultOptions;
+      return options;
     } else {
       return null;
     };
@@ -156,75 +156,75 @@ var helper = (function() {
     return array;
   };
 
-  function setObject(options) {
-    var defaultOptions = {
+  function setObject(override) {
+    var options = {
       path: null,
       object: null,
       newValue: null
     };
-    if (options) {
-      var defaultOptions = applyOptions(defaultOptions, options);
+    if (override) {
+      var options = applyOptions(options, override);
     };
-    var address = _makeAddress(defaultOptions.path);
+    var address = _makeAddress(options.path);
     var _setData = function() {
       while (address.length > 1) {
         // shift off and store the first key
         var currentKey = address.shift();
         // if the key is not found make a new object
-        if (!(currentKey in defaultOptions.object)) {
+        if (!(currentKey in options.object)) {
           // make an empty object in the current object level
           if (isNaN(currentKey)) {
-            defaultOptions.object[currentKey] = {};
+            options.object[currentKey] = {};
           } else {
-            defaultOptions.object[currentKey] = [];
+            options.object[currentKey] = [];
           };
         };
         // drill down the object with the first key
-        defaultOptions.object = defaultOptions.object[currentKey];
+        options.object = options.object[currentKey];
       };
       var finalKey = address.shift();
-      defaultOptions.object[finalKey] = defaultOptions.newValue;
+      options.object[finalKey] = options.newValue;
     };
-    if (defaultOptions.object != null && defaultOptions.path != null && defaultOptions.newValue != null) {
+    if (options.object != null && options.path != null && options.newValue != null) {
       _setData();
     } else {
       return false;
     };
   };
 
-  function getObject(options) {
-    var defaultOptions = {
+  function getObject(override) {
+    var options = {
       object: null,
       path: null
     };
-    if (options) {
-      var defaultOptions = applyOptions(defaultOptions, options);
+    if (override) {
+      var options = applyOptions(options, override);
     };
-    var address = _makeAddress(defaultOptions.path);
+    var address = _makeAddress(options.path);
     var _getData = function() {
       while (address.length > 1) {
         // shift off and store the first key
         var currentKey = address.shift();
         // if the key is not found make a new object
-        if (!(currentKey in defaultOptions.object)) {
+        if (!(currentKey in options.object)) {
           // make an empty object in the current object level
           if (isNaN(currentKey)) {
-            defaultOptions.object[currentKey] = {};
+            options.object[currentKey] = {};
           } else {
-            defaultOptions.object[currentKey] = [];
+            options.object[currentKey] = [];
           };
         };
         // drill down the object with the first key
-        defaultOptions.object = defaultOptions.object[currentKey];
+        options.object = options.object[currentKey];
       };
       var finalKey = address.shift();
-      if (!(finalKey in defaultOptions.object)) {
+      if (!(finalKey in options.object)) {
         return "";
       } else {
-        return defaultOptions.object[finalKey];
+        return options.object[finalKey];
       };
     };
-    if (defaultOptions.object != null && defaultOptions.path != null) {
+    if (options.object != null && options.path != null) {
       return _getData();
     } else {
       return false;
diff --git a/js/init.js b/js/init.js
index 7990c530..409f4282 100644
--- a/js/init.js
+++ b/js/init.js
@@ -1,16 +1,19 @@
 // log version
 console.log("nightTab v", version.get(), "loaded");
 
+// check for old versions
+data.init();
+
 // bind and update controls
 // render states
 state.init();
 
-// close menu if left open
-menu.init();
-
 // restore bookmarks
 bookmarks.init();
 
+// close menu if left open
+menu.init();
+
 // render input color value
 // render css accent var
 theme.init();
diff --git a/js/modal.js b/js/modal.js
index c4b45083..19add079 100644
--- a/js/modal.js
+++ b/js/modal.js
@@ -11,8 +11,8 @@ var modal = (function() {
     };
   };
 
-  var render = function(options) {
-    var defaultOptions = {
+  var render = function(override) {
+    var options = {
       heading: "Modal",
       content: "Body",
       action: null,
@@ -20,8 +20,8 @@ var modal = (function() {
       cancelText: "Cancel",
       size: "medium"
     };
-    if (options) {
-      defaultOptions = helper.applyOptions(defaultOptions, options);
+    if (override) {
+      options = helper.applyOptions(options, override);
     };
     var makeModal = function() {
       var body = helper.e("body");
@@ -32,11 +32,11 @@ var modal = (function() {
       var modalWrapper = document.createElement("div");
       modalWrapper.setAttribute("class", "modal-wrapper");
       var modal = document.createElement("div");
-      if (defaultOptions.size == "large") {
+      if (options.size == "large") {
         modal.setAttribute("class", "modal modal-large");
-      } else if (defaultOptions.size == "small") {
+      } else if (options.size == "small") {
         modal.setAttribute("class", "modal modal-small");
-      } else if (defaultOptions.size) {
+      } else if (options.size) {
         modal.setAttribute("class", "modal");
       };
       modal.destroy = function() {
@@ -59,30 +59,30 @@ var modal = (function() {
       var actionButton = document.createElement("button");
       actionButton.setAttribute("tabindex", "1");
       actionButton.setAttribute("class", "button button-primary button-block");
-      actionButton.textContent = defaultOptions.actionText;
+      actionButton.textContent = options.actionText;
       var cancelButton = document.createElement("button");
       cancelButton.setAttribute("tabindex", "1");
       cancelButton.setAttribute("class", "button button-primary button-block");
-      cancelButton.textContent = defaultOptions.cancelText;
+      cancelButton.textContent = options.cancelText;
       modalControls.appendChild(cancelButton);
       modalControls.appendChild(actionButton);
-      if (defaultOptions.heading != null) {
+      if (options.heading != null) {
         var modalHeading = document.createElement("h1");
         modalHeading.setAttribute("tabindex", "1");
         modalHeading.setAttribute("class", "modal-heading");
-        modalHeading.textContent = defaultOptions.heading;
+        modalHeading.textContent = options.heading;
         modalBody.appendChild(modalHeading);
       };
-      if (defaultOptions.content) {
-        if (typeof defaultOptions.content == "string") {
+      if (options.content) {
+        if (typeof options.content == "string") {
           var container = document.createElement("div");
           container.setAttribute("class", "container");
           var para = document.createElement("p");
-          para.textContent = defaultOptions.content;
+          para.textContent = options.content;
           container.appendChild(para);
           modalBody.appendChild(container);
         } else {
-          modalBody.appendChild(defaultOptions.content);
+          modalBody.appendChild(options.content);
         };
       };
       modalWrapper.appendChild(modalBody);
@@ -99,8 +99,8 @@ var modal = (function() {
       actionButton.addEventListener("click", function(event) {
         this.destroy();
         shade.destroy();
-        if (defaultOptions.action) {
-          defaultOptions.action();
+        if (options.action) {
+          options.action();
         };
       }.bind(modal), false);
       cancelButton.addEventListener("click", function(event) {
diff --git a/js/shade.js b/js/shade.js
index cd10b9ef..d795a2fb 100644
--- a/js/shade.js
+++ b/js/shade.js
@@ -11,13 +11,13 @@ var shade = (function() {
     };
   };
 
-  var render = function(options) {
-    var defaultOptions = {
+  var render = function(override) {
+    var options = {
       action: null,
       includeHeader: false
     };
-    if (options) {
-      defaultOptions = helper.applyOptions(defaultOptions, options);
+    if (override) {
+      options = helper.applyOptions(options, override);
     };
     var _destroy_previousShade = function() {
       if (previousShade != null) {
@@ -28,7 +28,7 @@ var shade = (function() {
       var body = helper.e("body");
       var shade = document.createElement("div");
       shade.setAttribute("class", "shade");
-      if (defaultOptions.includeHeader) {
+      if (options.includeHeader) {
         helper.addClass(shade, "m-shade-top");
       };
       shade.destroy = function() {
@@ -49,8 +49,8 @@ var shade = (function() {
       }.bind(shade), false);
       shade.addEventListener("click", function() {
         this.destroy();
-        if (defaultOptions.action) {
-          defaultOptions.action();
+        if (options.action) {
+          options.action();
         };
       }, false);
       previousShade = shade;
diff --git a/js/state.js b/js/state.js
index 198f85f6..7245ecb8 100644
--- a/js/state.js
+++ b/js/state.js
@@ -116,8 +116,7 @@ var state = (function() {
   return {
     init: init,
     get: get,
-    change: change,
-    restore: restore
+    change: change
   };
 
 })();
diff --git a/js/update.js b/js/update.js
new file mode 100644
index 00000000..df8edee9
--- /dev/null
+++ b/js/update.js
@@ -0,0 +1,52 @@
+var update = (function() {
+
+  var _update_100 = function(data) {
+    var time = new Date().getTime();
+    data.bookmarks.forEach(function(arrayItem, index) {
+      time = time + 1;
+      arrayItem.timeStamp = time;
+    });
+    data.version = 1.00;
+    return data;
+  };
+
+  var _update_200 = function(data) {
+    state.change({
+      path: "layout.theme",
+      value: data.theme
+    });
+    data = {
+      state: state.get(),
+      bookmarks: data.bookmarks
+    };
+    data.version = 2.00;
+    return data;
+  };
+
+  // var _update_300 = function(data) {
+  //   data.version = 3.00;
+  //   return data;
+  // };
+
+  function render(data) {
+    if (!("version" in data)) {
+      console.log("\trunning update", 1.00);
+      data = _update_100(data);
+    };
+    if (data.version < 2.00) {
+      console.log("\trunning update", 2.00);
+      data = _update_200(data);
+    };
+    // if (data.version < 3.00) {
+    //   console.log("\t# running update", 3.00);
+    //   data = _update_300(data);
+    // };
+    return data;
+  };
+
+  // exposed methods
+  return {
+    render: render
+  };
+
+})();
diff --git a/js/version.js b/js/version.js
index 44b2da31..9d42a0fe 100644
--- a/js/version.js
+++ b/js/version.js
@@ -1,9 +1,10 @@
 var version = (function() {
 
-  var current = 2.0;
+  var current = "2.0.0";
 
   var get = function() {
-    return current;
+    var number = current.split(".");
+    return parseFloat(number.shift() + "." + number.join(""));
   };
 
   // exposed methods