diff --git a/README.md b/README.md
index 03176e6c1..a1936ed43 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# lodash v3.4.3
+# lodash v3.4.4
 
 The [lodash](https://lodash.com/) library exported as [npm packages](https://www.npmjs.com/browse/keyword/lodash-modularized) per method.
 
diff --git a/lodash.add/LICENSE b/lodash.add/LICENSE
index bcbe13d67..e0c69d560 100644
--- a/lodash.add/LICENSE
+++ b/lodash.add/LICENSE
@@ -1,23 +1,47 @@
-The MIT License (MIT)
+Copyright jQuery Foundation and other contributors <https://jquery.org/>
 
-Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas,
+Based on Underscore.js, copyright Jeremy Ashkenas,
 DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+This software consists of voluntary contributions made by many
+individuals. For exact contribution history, see the revision history
+available at https://github.com/lodash/lodash
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
+The following license applies to all parts of this software except as
+documented below:
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+====
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+====
+
+Copyright and related rights for sample code are waived via CC0. Sample
+code is defined as all source code displayed within the prose of the
+documentation.
+
+CC0: http://creativecommons.org/publicdomain/zero/1.0/
+
+====
+
+Files located in the node_modules and vendor directories are externally
+maintained libraries used by this software which have their own
+licenses; we recommend you read them, as their terms may differ from the
+terms above.
diff --git a/lodash.add/README.md b/lodash.add/README.md
index 8511b3f64..da5fec342 100644
--- a/lodash.add/README.md
+++ b/lodash.add/README.md
@@ -1,4 +1,4 @@
-# lodash.add v3.4.3
+# lodash.add v3.4.4
 
 The [lodash](https://lodash.com/) method `_.add` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var add = require('lodash.add');
 ```
 
-See the [documentation](https://lodash.com/docs#add) or [package source](https://github.com/lodash/lodash/blob/3.4.3-npm-packages/lodash.add) for more details.
+See the [documentation](https://lodash.com/docs#add) or [package source](https://github.com/lodash/lodash/blob/3.4.4-npm-packages/lodash.add) for more details.
diff --git a/lodash.add/index.js b/lodash.add/index.js
index 57666cb77..589fea035 100644
--- a/lodash.add/index.js
+++ b/lodash.add/index.js
@@ -1,17 +1,41 @@
 /**
- * lodash 3.4.3 (Custom Build) <https://lodash.com/>
+ * lodash 3.4.4 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="npm" -o ./`
- * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
+ * Copyright jQuery Foundation and other contributors <https://jquery.org/>
+ * Released under MIT license <https://lodash.com/license>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
+ * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
  */
 
+/**
+ * Creates a function that performs a mathematical operation on two values.
+ *
+ * @private
+ * @param {Function} operator The function to perform the operation.
+ * @returns {Function} Returns the new mathematical operation function.
+ */
+function createMathOperation(operator) {
+  return function(value, other) {
+    var result;
+    if (value === undefined && other === undefined) {
+      return 0;
+    }
+    if (value !== undefined) {
+      result = value;
+    }
+    if (other !== undefined) {
+      result = result === undefined ? other : operator(result, other);
+    }
+    return result;
+  };
+}
+
 /**
  * Adds two numbers.
  *
  * @static
  * @memberOf _
+ * @since 3.4.0
  * @category Math
  * @param {number} augend The first number in an addition.
  * @param {number} addend The second number in an addition.
@@ -21,18 +45,8 @@
  * _.add(6, 4);
  * // => 10
  */
-function add(augend, addend) {
-  var result;
-  if (augend === undefined && addend === undefined) {
-    return 0;
-  }
-  if (augend !== undefined) {
-    result = augend;
-  }
-  if (addend !== undefined) {
-    result = result === undefined ? addend : (result + addend);
-  }
-  return result;
-}
+var add = createMathOperation(function(augend, addend) {
+  return augend + addend;
+});
 
 module.exports = add;
diff --git a/lodash.add/package.json b/lodash.add/package.json
index f93bbd6f5..1fdddbfb5 100644
--- a/lodash.add/package.json
+++ b/lodash.add/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.add",
-  "version": "3.4.3",
+  "version": "3.4.4",
   "description": "The lodash method `_.add` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
@@ -9,7 +9,7 @@
   "author": "John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
   "contributors": [
     "John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
-    "Blaine Bublitz <blaine@iceddev.com> (https://github.com/phated)",
+    "Blaine Bublitz <blaine.bublitz@gmail.com> (https://github.com/phated)",
     "Mathias Bynens <mathias@qiwi.be> (https://mathiasbynens.be/)"
   ],
   "repository": "lodash/lodash",
diff --git a/lodash.sortbyorder/LICENSE.txt b/lodash.sortbyorder/LICENSE
similarity index 100%
rename from lodash.sortbyorder/LICENSE.txt
rename to lodash.sortbyorder/LICENSE
diff --git a/lodash.sortbyorder/README.md b/lodash.sortbyorder/README.md
index 009178bf1..7fda8ee73 100644
--- a/lodash.sortbyorder/README.md
+++ b/lodash.sortbyorder/README.md
@@ -1,4 +1,4 @@
-# lodash.sortbyorder v3.4.3
+# lodash.sortbyorder v3.4.4
 
 The [modern build](https://github.com/lodash/lodash/wiki/Build-Differences) of [lodash’s](https://lodash.com/) `_.sortByOrder` exported as a [Node.js](http://nodejs.org/)/[io.js](https://iojs.org/) module.
 
@@ -17,4 +17,4 @@ In Node.js/io.js:
 var sortByOrder = require('lodash.sortbyorder');
 ```
 
-See the [documentation](https://lodash.com/docs#sortByOrder) or [package source](https://github.com/lodash/lodash/blob/3.4.3-npm-packages/lodash.sortbyorder) for more details.
+See the [documentation](https://lodash.com/docs#sortByOrder) or [package source](https://github.com/lodash/lodash/blob/3.4.4-npm-packages/lodash.sortbyorder) for more details.
diff --git a/lodash.sortbyorder/index.js b/lodash.sortbyorder/index.js
index 13cb09fcc..303bf2e60 100644
--- a/lodash.sortbyorder/index.js
+++ b/lodash.sortbyorder/index.js
@@ -1,5 +1,5 @@
 /**
- * lodash 3.4.3 (Custom Build) <https://lodash.com/>
+ * lodash 3.4.4 (Custom Build) <https://lodash.com/>
  * Build: `lodash modern modularize exports="npm" -o ./`
  * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
@@ -12,9 +12,9 @@ var baseSortByOrder = require('lodash._basesortbyorder'),
 
 /**
  * This method is like `_.sortByAll` except that it allows specifying the
- * sort orders of the iteratees to sort by. A truthy value in `orders` will
- * sort the corresponding property name in ascending order while a falsey
- * value will sort it in descending order.
+ * sort orders of the iteratees to sort by. If `orders` is unspecified, all
+ * values are sorted in ascending order. Otherwise, a value is sorted in
+ * ascending order if its corresponding order is "asc", and descending if "desc".
  *
  * If a property name is provided for an iteratee the created `_.property`
  * style callback returns the property value of the given element.
@@ -28,7 +28,7 @@ var baseSortByOrder = require('lodash._basesortbyorder'),
  * @category Collection
  * @param {Array|Object|string} collection The collection to iterate over.
  * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
- * @param {boolean[]} orders The sort orders of `iteratees`.
+ * @param {boolean[]} [orders] The sort orders of `iteratees`.
  * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
  * @returns {Array} Returns the new sorted array.
  * @example
@@ -41,7 +41,7 @@ var baseSortByOrder = require('lodash._basesortbyorder'),
  * ];
  *
  * // sort by `user` in ascending order and by `age` in descending order
- * _.map(_.sortByOrder(users, ['user', 'age'], [true, false]), _.values);
+ * _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values);
  * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
  */
 function sortByOrder(collection, iteratees, orders, guard) {
@@ -49,7 +49,7 @@ function sortByOrder(collection, iteratees, orders, guard) {
     return [];
   }
   if (guard && isIterateeCall(iteratees, orders, guard)) {
-    orders = null;
+    orders = undefined;
   }
   if (!isArray(iteratees)) {
     iteratees = iteratees == null ? [] : [iteratees];
diff --git a/lodash.sortbyorder/package.json b/lodash.sortbyorder/package.json
index b7e105f85..9d2045057 100644
--- a/lodash.sortbyorder/package.json
+++ b/lodash.sortbyorder/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.sortbyorder",
-  "version": "3.4.3",
+  "version": "3.4.4",
   "description": "The modern build of lodash’s `_.sortByOrder` as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",