diff --git a/README.md b/README.md
index ffc1af250..b3330aa08 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# lodash v4.3.3
+# lodash v4.3.4
 
 The [lodash](https://lodash.com/) library exported as [npm packages](https://www.npmjs.com/browse/keyword/lodash-modularized) per method.
 
diff --git a/lodash.defaultsdeep/LICENSE b/lodash.defaultsdeep/LICENSE
index bcbe13d67..e0c69d560 100644
--- a/lodash.defaultsdeep/LICENSE
+++ b/lodash.defaultsdeep/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.defaultsdeep/README.md b/lodash.defaultsdeep/README.md
index 1ce18829c..d261cffea 100644
--- a/lodash.defaultsdeep/README.md
+++ b/lodash.defaultsdeep/README.md
@@ -1,4 +1,4 @@
-# lodash.defaultsdeep v4.3.3
+# lodash.defaultsdeep v4.3.4
 
 The [lodash](https://lodash.com/) method `_.defaultsDeep` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var defaultsDeep = require('lodash.defaultsdeep');
 ```
 
-See the [documentation](https://lodash.com/docs#defaultsDeep) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.defaultsdeep) for more details.
+See the [documentation](https://lodash.com/docs#defaultsDeep) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.defaultsdeep) for more details.
diff --git a/lodash.defaultsdeep/index.js b/lodash.defaultsdeep/index.js
index eb5b16f27..21a075505 100644
--- a/lodash.defaultsdeep/index.js
+++ b/lodash.defaultsdeep/index.js
@@ -1,10 +1,10 @@
 /**
- * lodash 4.3.3 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.4 (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
  */
 var Stack = require('lodash._stack'),
     baseClone = require('lodash._baseclone'),
@@ -33,6 +33,7 @@ var argsTag = '[object Arguments]',
     weakMapTag = '[object WeakMap]';
 
 var arrayBufferTag = '[object ArrayBuffer]',
+    dataViewTag = '[object DataView]',
     float32Tag = '[object Float32Array]',
     float64Tag = '[object Float64Array]',
     int8Tag = '[object Int8Array]',
@@ -52,11 +53,12 @@ typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
 typedArrayTags[uint32Tag] = true;
 typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
 typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-typedArrayTags[dateTag] = typedArrayTags[errorTag] =
-typedArrayTags[funcTag] = typedArrayTags[mapTag] =
-typedArrayTags[numberTag] = typedArrayTags[objectTag] =
-typedArrayTags[regexpTag] = typedArrayTags[setTag] =
-typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
+typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
+typedArrayTags[errorTag] = typedArrayTags[funcTag] =
+typedArrayTags[mapTag] = typedArrayTags[numberTag] =
+typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
+typedArrayTags[setTag] = typedArrayTags[stringTag] =
+typedArrayTags[weakMapTag] = false;
 
 /**
  * A faster alternative to `Function#apply`, this function invokes `func`
@@ -65,7 +67,7 @@ typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
  * @private
  * @param {Function} func The function to invoke.
  * @param {*} thisArg The `this` binding of `func`.
- * @param {...*} args The arguments to invoke `func` with.
+ * @param {Array} args The arguments to invoke `func` with.
  * @returns {*} Returns the result of `func`.
  */
 function apply(func, thisArg, args) {
@@ -107,7 +109,8 @@ var objectProto = Object.prototype;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -157,16 +160,16 @@ function assignValue(object, key, value) {
  * @param {Object} source The source object.
  * @param {number} srcIndex The index of `source`.
  * @param {Function} [customizer] The function to customize merged values.
- * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ *  counterparts.
  */
 function baseMerge(object, source, srcIndex, customizer, stack) {
   if (object === source) {
     return;
   }
-  var props = (isArray(source) || isTypedArray(source))
-    ? undefined
-    : keysIn(source);
-
+  if (!(isArray(source) || isTypedArray(source))) {
+    var props = keysIn(source);
+  }
   arrayEach(props || source, function(srcValue, key) {
     if (props) {
       key = srcValue;
@@ -201,7 +204,8 @@ function baseMerge(object, source, srcIndex, customizer, stack) {
  * @param {number} srcIndex The index of `source`.
  * @param {Function} mergeFunc The function to merge values.
  * @param {Function} [customizer] The function to customize assigned values.
- * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ *  counterparts.
  */
 function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
   var objValue = object[key],
@@ -229,7 +233,7 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
       }
       else {
         isCommon = false;
-        newValue = baseClone(srcValue, !customizer);
+        newValue = baseClone(srcValue, true);
       }
     }
     else if (isPlainObject(srcValue) || isArguments(srcValue)) {
@@ -238,7 +242,7 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
       }
       else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
         isCommon = false;
-        newValue = baseClone(srcValue, !customizer);
+        newValue = baseClone(srcValue, true);
       }
       else {
         newValue = objValue;
@@ -295,7 +299,7 @@ function copyArray(source, array) {
  *
  * @private
  * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
+ * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
  * @returns {Object} Returns `object`.
  */
@@ -309,7 +313,7 @@ function copyObject(source, props, object) {
  *
  * @private
  * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
+ * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
  * @param {Function} [customizer] The function to customize copied values.
  * @returns {Object} Returns `object`.
@@ -335,8 +339,9 @@ function copyObjectWith(source, props, object, customizer) {
 /**
  * Gets the "length" property value of `object`.
  *
- * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
- * that affects Safari on at least iOS 8.1-8.3 ARM64.
+ * **Note:** This function is used to avoid a
+ * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
+ * Safari on at least iOS 8.1-8.3 ARM64.
  *
  * @private
  * @param {Object} object The object to query.
@@ -353,7 +358,8 @@ var getLength = baseProperty('length');
  * @param {string} key The key of the property to merge.
  * @param {Object} object The parent object of `objValue`.
  * @param {Object} source The parent object of `srcValue`.
- * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ *  counterparts.
  * @returns {*} Returns the value to assign.
  */
 function mergeDefaults(objValue, srcValue, key, object, source, stack) {
@@ -364,11 +370,13 @@ function mergeDefaults(objValue, srcValue, key, object, source, stack) {
 }
 
 /**
- * Performs a [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * Performs a
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
  * comparison between two values to determine if they are equivalent.
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to compare.
  * @param {*} other The other value to compare.
@@ -402,9 +410,11 @@ function eq(value, other) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isArguments(function() { return arguments; }());
@@ -424,10 +434,12 @@ function isArguments(value) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @type {Function}
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isArray([1, 2, 3]);
@@ -451,6 +463,7 @@ var isArray = Array.isArray;
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
@@ -478,9 +491,11 @@ function isArrayLike(value) {
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object, else `false`.
+ * @returns {boolean} Returns `true` if `value` is an array-like object,
+ *  else `false`.
  * @example
  *
  * _.isArrayLikeObject([1, 2, 3]);
@@ -504,9 +519,11 @@ function isArrayLikeObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isFunction(_);
@@ -526,13 +543,16 @@ function isFunction(value) {
 /**
  * Checks if `value` is a valid array-like length.
  *
- * **Note:** This function is loosely based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+ * **Note:** This function is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @returns {boolean} Returns `true` if `value` is a valid length,
+ *  else `false`.
  * @example
  *
  * _.isLength(3);
@@ -553,11 +573,13 @@ function isLength(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is an object, else `false`.
@@ -586,6 +608,7 @@ function isObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
@@ -612,9 +635,11 @@ function isObjectLike(value) {
  *
  * @static
  * @memberOf _
+ * @since 3.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isTypedArray(new Uint8Array);
@@ -629,11 +654,12 @@ function isTypedArray(value) {
 }
 
 /**
- * Converts `value` to a plain object flattening inherited enumerable
- * properties of `value` to own properties of the plain object.
+ * Converts `value` to a plain object flattening inherited enumerable string
+ * keyed properties of `value` to own properties of the plain object.
  *
  * @static
  * @memberOf _
+ * @since 3.0.0
  * @category Lang
  * @param {*} value The value to convert.
  * @returns {Object} Returns the converted plain object.
@@ -663,6 +689,7 @@ function toPlainObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 3.10.0
  * @category Object
  * @param {Object} object The destination object.
  * @param {...Object} [sources] The source objects.
diff --git a/lodash.defaultsdeep/package.json b/lodash.defaultsdeep/package.json
index 644b8b5ed..c20aa1026 100644
--- a/lodash.defaultsdeep/package.json
+++ b/lodash.defaultsdeep/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.defaultsdeep",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.defaultsDeep` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
diff --git a/lodash.isbuffer/README.md b/lodash.isbuffer/README.md
index 77e17948a..145b77489 100644
--- a/lodash.isbuffer/README.md
+++ b/lodash.isbuffer/README.md
@@ -1,4 +1,4 @@
-# lodash.isbuffer v4.3.3
+# lodash.isbuffer v4.3.4
 
 The [lodash](https://lodash.com/) method `_.isBuffer` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var isBuffer = require('lodash.isbuffer');
 ```
 
-See the [documentation](https://lodash.com/docs#isBuffer) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.isbuffer) for more details.
+See the [documentation](https://lodash.com/docs#isBuffer) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.isbuffer) for more details.
diff --git a/lodash.isbuffer/index.js b/lodash.isbuffer/index.js
index 77fa1ce27..c89fe58a1 100644
--- a/lodash.isbuffer/index.js
+++ b/lodash.isbuffer/index.js
@@ -17,10 +17,10 @@ var freeSelf = typeof self == 'object' && self && self.Object === Object && self
 var root = freeGlobal || freeSelf || Function('return this')();
 
 /** Detect free variable `exports`. */
-var freeExports = freeGlobal && typeof exports == 'object' && exports;
+var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
 
 /** Detect free variable `module`. */
-var freeModule = freeExports && typeof module == 'object' && module;
+var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
 
 /** Detect the popular CommonJS extension `module.exports`. */
 var moduleExports = freeModule && freeModule.exports === freeExports;
diff --git a/lodash.isbuffer/package.json b/lodash.isbuffer/package.json
index 1cb8602a2..0d3a7610b 100644
--- a/lodash.isbuffer/package.json
+++ b/lodash.isbuffer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.isbuffer",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.isBuffer` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
diff --git a/lodash.ismap/README.md b/lodash.ismap/README.md
index e170b4d75..1acfa0dbb 100644
--- a/lodash.ismap/README.md
+++ b/lodash.ismap/README.md
@@ -1,4 +1,4 @@
-# lodash.ismap v4.3.3
+# lodash.ismap v4.3.4
 
 The [lodash](https://lodash.com/) method `_.isMap` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var isMap = require('lodash.ismap');
 ```
 
-See the [documentation](https://lodash.com/docs#isMap) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.ismap) for more details.
+See the [documentation](https://lodash.com/docs#isMap) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.ismap) for more details.
diff --git a/lodash.ismap/index.js b/lodash.ismap/index.js
index 7d5db1218..2598e827e 100644
--- a/lodash.ismap/index.js
+++ b/lodash.ismap/index.js
@@ -1,5 +1,5 @@
 /**
- * lodash 4.3.3 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.4 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="npm" -o ./`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -19,7 +19,10 @@ var funcTag = '[object Function]',
 
 var dataViewTag = '[object DataView]';
 
-/** Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns). */
+/**
+ * Used to match `RegExp`
+ * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+ */
 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
 
 /** Used to detect host constructors (Safari). */
@@ -54,7 +57,8 @@ var funcToString = Function.prototype.toString;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -73,11 +77,11 @@ var DataView = getNative(root, 'DataView'),
     WeakMap = getNative(root, 'WeakMap');
 
 /** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = DataView ? (DataView + '') : '',
-    mapCtorString = Map ? funcToString.call(Map) : '',
-    promiseCtorString = Promise ? funcToString.call(Promise) : '',
-    setCtorString = Set ? funcToString.call(Set) : '',
-    weakMapCtorString = WeakMap ? funcToString.call(WeakMap) : '';
+var dataViewCtorString = toSource(DataView),
+    mapCtorString = toSource(Map),
+    promiseCtorString = toSource(Promise),
+    setCtorString = toSource(Set),
+    weakMapCtorString = toSource(WeakMap);
 
 /**
  * Gets the native function at `key` of `object`.
@@ -112,8 +116,8 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
     (WeakMap && getTag(new WeakMap) != weakMapTag)) {
   getTag = function(value) {
     var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : null,
-        ctorString = typeof Ctor == 'function' ? funcToString.call(Ctor) : '';
+        Ctor = result == objectTag ? value.constructor : undefined,
+        ctorString = Ctor ? toSource(Ctor) : undefined;
 
     if (ctorString) {
       switch (ctorString) {
@@ -128,6 +132,25 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
   };
 }
 
+/**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to process.
+ * @returns {string} Returns the source code.
+ */
+function toSource(func) {
+  if (func != null) {
+    try {
+      return funcToString.call(func);
+    } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e) {}
+  }
+  return '';
+}
+
 /**
  * Checks if `value` is classified as a `Function` object.
  *
@@ -155,8 +178,9 @@ function isFunction(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
@@ -252,14 +276,11 @@ function isMap(value) {
  * // => false
  */
 function isNative(value) {
-  if (value == null) {
+  if (!isObject(value)) {
     return false;
   }
-  if (isFunction(value)) {
-    return reIsNative.test(funcToString.call(value));
-  }
-  return isObjectLike(value) &&
-    (isHostObject(value) ? reIsNative : reIsHostCtor).test(value);
+  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
+  return pattern.test(toSource(value));
 }
 
 module.exports = isMap;
diff --git a/lodash.ismap/package.json b/lodash.ismap/package.json
index ad7a8db30..15815a015 100644
--- a/lodash.ismap/package.json
+++ b/lodash.ismap/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.ismap",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.isMap` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
diff --git a/lodash.isset/README.md b/lodash.isset/README.md
index e113dabc2..7ce35afe8 100644
--- a/lodash.isset/README.md
+++ b/lodash.isset/README.md
@@ -1,4 +1,4 @@
-# lodash.isset v4.3.3
+# lodash.isset v4.3.4
 
 The [lodash](https://lodash.com/) method `_.isSet` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var isSet = require('lodash.isset');
 ```
 
-See the [documentation](https://lodash.com/docs#isSet) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.isset) for more details.
+See the [documentation](https://lodash.com/docs#isSet) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.isset) for more details.
diff --git a/lodash.isset/index.js b/lodash.isset/index.js
index 6db1e2af1..af5087ceb 100644
--- a/lodash.isset/index.js
+++ b/lodash.isset/index.js
@@ -1,5 +1,5 @@
 /**
- * lodash 4.3.3 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.4 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="npm" -o ./`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -19,7 +19,10 @@ var funcTag = '[object Function]',
 
 var dataViewTag = '[object DataView]';
 
-/** Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns). */
+/**
+ * Used to match `RegExp`
+ * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+ */
 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
 
 /** Used to detect host constructors (Safari). */
@@ -54,7 +57,8 @@ var funcToString = Function.prototype.toString;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -73,11 +77,11 @@ var DataView = getNative(root, 'DataView'),
     WeakMap = getNative(root, 'WeakMap');
 
 /** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = DataView ? (DataView + '') : '',
-    mapCtorString = Map ? funcToString.call(Map) : '',
-    promiseCtorString = Promise ? funcToString.call(Promise) : '',
-    setCtorString = Set ? funcToString.call(Set) : '',
-    weakMapCtorString = WeakMap ? funcToString.call(WeakMap) : '';
+var dataViewCtorString = toSource(DataView),
+    mapCtorString = toSource(Map),
+    promiseCtorString = toSource(Promise),
+    setCtorString = toSource(Set),
+    weakMapCtorString = toSource(WeakMap);
 
 /**
  * Gets the native function at `key` of `object`.
@@ -112,8 +116,8 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
     (WeakMap && getTag(new WeakMap) != weakMapTag)) {
   getTag = function(value) {
     var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : null,
-        ctorString = typeof Ctor == 'function' ? funcToString.call(Ctor) : '';
+        Ctor = result == objectTag ? value.constructor : undefined,
+        ctorString = Ctor ? toSource(Ctor) : undefined;
 
     if (ctorString) {
       switch (ctorString) {
@@ -128,6 +132,25 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
   };
 }
 
+/**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to process.
+ * @returns {string} Returns the source code.
+ */
+function toSource(func) {
+  if (func != null) {
+    try {
+      return funcToString.call(func);
+    } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e) {}
+  }
+  return '';
+}
+
 /**
  * Checks if `value` is classified as a `Function` object.
  *
@@ -155,8 +178,9 @@ function isFunction(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
@@ -230,14 +254,11 @@ function isObjectLike(value) {
  * // => false
  */
 function isNative(value) {
-  if (value == null) {
+  if (!isObject(value)) {
     return false;
   }
-  if (isFunction(value)) {
-    return reIsNative.test(funcToString.call(value));
-  }
-  return isObjectLike(value) &&
-    (isHostObject(value) ? reIsNative : reIsHostCtor).test(value);
+  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
+  return pattern.test(toSource(value));
 }
 
 /**
diff --git a/lodash.isset/package.json b/lodash.isset/package.json
index 5afe3c5e0..d53891624 100644
--- a/lodash.isset/package.json
+++ b/lodash.isset/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.isset",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.isSet` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
diff --git a/lodash.isweakmap/README.md b/lodash.isweakmap/README.md
index b06d63415..e89a17e4d 100644
--- a/lodash.isweakmap/README.md
+++ b/lodash.isweakmap/README.md
@@ -1,4 +1,4 @@
-# lodash.isweakmap v4.3.3
+# lodash.isweakmap v4.3.4
 
 The [lodash](https://lodash.com/) method `_.isWeakMap` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var isWeakMap = require('lodash.isweakmap');
 ```
 
-See the [documentation](https://lodash.com/docs#isWeakMap) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.isweakmap) for more details.
+See the [documentation](https://lodash.com/docs#isWeakMap) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.isweakmap) for more details.
diff --git a/lodash.isweakmap/index.js b/lodash.isweakmap/index.js
index 673be8b0b..7d576785c 100644
--- a/lodash.isweakmap/index.js
+++ b/lodash.isweakmap/index.js
@@ -1,5 +1,5 @@
 /**
- * lodash 4.3.3 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.4 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="npm" -o ./`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -19,7 +19,10 @@ var funcTag = '[object Function]',
 
 var dataViewTag = '[object DataView]';
 
-/** Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns). */
+/**
+ * Used to match `RegExp`
+ * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+ */
 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
 
 /** Used to detect host constructors (Safari). */
@@ -54,7 +57,8 @@ var funcToString = Function.prototype.toString;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -73,11 +77,11 @@ var DataView = getNative(root, 'DataView'),
     WeakMap = getNative(root, 'WeakMap');
 
 /** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = DataView ? (DataView + '') : '',
-    mapCtorString = Map ? funcToString.call(Map) : '',
-    promiseCtorString = Promise ? funcToString.call(Promise) : '',
-    setCtorString = Set ? funcToString.call(Set) : '',
-    weakMapCtorString = WeakMap ? funcToString.call(WeakMap) : '';
+var dataViewCtorString = toSource(DataView),
+    mapCtorString = toSource(Map),
+    promiseCtorString = toSource(Promise),
+    setCtorString = toSource(Set),
+    weakMapCtorString = toSource(WeakMap);
 
 /**
  * Gets the native function at `key` of `object`.
@@ -112,8 +116,8 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
     (WeakMap && getTag(new WeakMap) != weakMapTag)) {
   getTag = function(value) {
     var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : null,
-        ctorString = typeof Ctor == 'function' ? funcToString.call(Ctor) : '';
+        Ctor = result == objectTag ? value.constructor : undefined,
+        ctorString = Ctor ? toSource(Ctor) : undefined;
 
     if (ctorString) {
       switch (ctorString) {
@@ -128,6 +132,25 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
   };
 }
 
+/**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to process.
+ * @returns {string} Returns the source code.
+ */
+function toSource(func) {
+  if (func != null) {
+    try {
+      return funcToString.call(func);
+    } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e) {}
+  }
+  return '';
+}
+
 /**
  * Checks if `value` is classified as a `Function` object.
  *
@@ -155,8 +178,9 @@ function isFunction(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
@@ -230,14 +254,11 @@ function isObjectLike(value) {
  * // => false
  */
 function isNative(value) {
-  if (value == null) {
+  if (!isObject(value)) {
     return false;
   }
-  if (isFunction(value)) {
-    return reIsNative.test(funcToString.call(value));
-  }
-  return isObjectLike(value) &&
-    (isHostObject(value) ? reIsNative : reIsHostCtor).test(value);
+  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
+  return pattern.test(toSource(value));
 }
 
 /**
diff --git a/lodash.isweakmap/package.json b/lodash.isweakmap/package.json
index 32ba78f3f..5dd8948be 100644
--- a/lodash.isweakmap/package.json
+++ b/lodash.isweakmap/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.isweakmap",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.isWeakMap` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
diff --git a/lodash.matches/README.md b/lodash.matches/README.md
index 08059e3a2..821e61f61 100644
--- a/lodash.matches/README.md
+++ b/lodash.matches/README.md
@@ -1,4 +1,4 @@
-# lodash.matches v4.3.3
+# lodash.matches v4.3.4
 
 The [lodash](https://lodash.com/) method `_.matches` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var matches = require('lodash.matches');
 ```
 
-See the [documentation](https://lodash.com/docs#matches) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.matches) for more details.
+See the [documentation](https://lodash.com/docs#matches) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.matches) for more details.
diff --git a/lodash.matches/index.js b/lodash.matches/index.js
index c3b27d624..6989815c5 100644
--- a/lodash.matches/index.js
+++ b/lodash.matches/index.js
@@ -1,5 +1,5 @@
 /**
- * lodash 4.3.3 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.4 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="npm" -o ./`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -48,7 +48,10 @@ var arrayBufferTag = '[object ArrayBuffer]',
     uint16Tag = '[object Uint16Array]',
     uint32Tag = '[object Uint32Array]';
 
-/** Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns). */
+/**
+ * Used to match `RegExp`
+ * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+ */
 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
 
 /** Used to detect host constructors (Safari). */
@@ -190,7 +193,8 @@ var funcToString = Function.prototype.toString;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -216,11 +220,11 @@ var DataView = getNative(root, 'DataView'),
     WeakMap = getNative(root, 'WeakMap');
 
 /** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = DataView ? (DataView + '') : '',
-    mapCtorString = Map ? funcToString.call(Map) : '',
-    promiseCtorString = Promise ? funcToString.call(Promise) : '',
-    setCtorString = Set ? funcToString.call(Set) : '',
-    weakMapCtorString = WeakMap ? funcToString.call(WeakMap) : '';
+var dataViewCtorString = toSource(DataView),
+    mapCtorString = toSource(Map),
+    promiseCtorString = toSource(Promise),
+    setCtorString = toSource(Set),
+    weakMapCtorString = toSource(WeakMap);
 
 /** Used to convert symbols to primitives and strings. */
 var symbolProto = Symbol ? Symbol.prototype : undefined,
@@ -389,16 +393,7 @@ function baseIsMatch(object, source, matchData, customizer) {
 function baseMatches(source) {
   var matchData = getMatchData(source);
   if (matchData.length == 1 && matchData[0][2]) {
-    var key = matchData[0][0],
-        value = matchData[0][1];
-
-    return function(object) {
-      if (object == null) {
-        return false;
-      }
-      return object[key] === value &&
-        (value !== undefined || (key in Object(object)));
-    };
+    return matchesStrictComparable(matchData[0][0], matchData[0][1]);
   }
   return function(object) {
     return object === source || baseIsMatch(object, source, matchData);
@@ -527,7 +522,8 @@ function equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) {
     case regexpTag:
     case stringTag:
       // Coerce regexes to strings and treat strings, primitives and objects,
-      // as equal. See https://es5.github.io/#x15.10.6.4 for more details.
+      // as equal. See http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.tostring
+      // for more details.
       return object == (other + '');
 
     case mapTag:
@@ -696,8 +692,8 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
     (WeakMap && getTag(new WeakMap) != weakMapTag)) {
   getTag = function(value) {
     var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : null,
-        ctorString = typeof Ctor == 'function' ? funcToString.call(Ctor) : '';
+        Ctor = result == objectTag ? value.constructor : undefined,
+        ctorString = Ctor ? toSource(Ctor) : undefined;
 
     if (ctorString) {
       switch (ctorString) {
@@ -724,6 +720,44 @@ function isStrictComparable(value) {
   return value === value && !isObject(value);
 }
 
+/**
+ * A specialized version of `matchesProperty` for source values suitable
+ * for strict equality comparisons, i.e. `===`.
+ *
+ * @private
+ * @param {string} key The key of the property to get.
+ * @param {*} srcValue The value to match.
+ * @returns {Function} Returns the new function.
+ */
+function matchesStrictComparable(key, srcValue) {
+  return function(object) {
+    if (object == null) {
+      return false;
+    }
+    return object[key] === srcValue &&
+      (srcValue !== undefined || (key in Object(object)));
+  };
+}
+
+/**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to process.
+ * @returns {string} Returns the source code.
+ */
+function toSource(func) {
+  if (func != null) {
+    try {
+      return funcToString.call(func);
+    } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e) {}
+  }
+  return '';
+}
+
 /**
  * Checks if `value` is classified as an `Array` object.
  *
@@ -810,8 +844,9 @@ function isLength(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
@@ -885,14 +920,11 @@ function isObjectLike(value) {
  * // => false
  */
 function isNative(value) {
-  if (value == null) {
+  if (!isObject(value)) {
     return false;
   }
-  if (isFunction(value)) {
-    return reIsNative.test(funcToString.call(value));
-  }
-  return isObjectLike(value) &&
-    (isHostObject(value) ? reIsNative : reIsHostCtor).test(value);
+  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
+  return pattern.test(toSource(value));
 }
 
 /**
diff --git a/lodash.matches/package.json b/lodash.matches/package.json
index 2d0b9c414..5f18740b6 100644
--- a/lodash.matches/package.json
+++ b/lodash.matches/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.matches",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.matches` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
diff --git a/lodash.merge/LICENSE b/lodash.merge/LICENSE
index bcbe13d67..e0c69d560 100644
--- a/lodash.merge/LICENSE
+++ b/lodash.merge/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.merge/README.md b/lodash.merge/README.md
index e103764e0..bae4611d2 100644
--- a/lodash.merge/README.md
+++ b/lodash.merge/README.md
@@ -1,4 +1,4 @@
-# lodash.merge v4.3.3
+# lodash.merge v4.3.4
 
 The [lodash](https://lodash.com/) method `_.merge` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var merge = require('lodash.merge');
 ```
 
-See the [documentation](https://lodash.com/docs#merge) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.merge) for more details.
+See the [documentation](https://lodash.com/docs#merge) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.merge) for more details.
diff --git a/lodash.merge/index.js b/lodash.merge/index.js
index fed93c742..cfc07f893 100644
--- a/lodash.merge/index.js
+++ b/lodash.merge/index.js
@@ -1,10 +1,10 @@
 /**
- * lodash 4.3.3 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.4 (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
  */
 var Stack = require('lodash._stack'),
     baseClone = require('lodash._baseclone'),
@@ -32,6 +32,7 @@ var argsTag = '[object Arguments]',
     weakMapTag = '[object WeakMap]';
 
 var arrayBufferTag = '[object ArrayBuffer]',
+    dataViewTag = '[object DataView]',
     float32Tag = '[object Float32Array]',
     float64Tag = '[object Float64Array]',
     int8Tag = '[object Int8Array]',
@@ -54,11 +55,12 @@ typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
 typedArrayTags[uint32Tag] = true;
 typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
 typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-typedArrayTags[dateTag] = typedArrayTags[errorTag] =
-typedArrayTags[funcTag] = typedArrayTags[mapTag] =
-typedArrayTags[numberTag] = typedArrayTags[objectTag] =
-typedArrayTags[regexpTag] = typedArrayTags[setTag] =
-typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
+typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
+typedArrayTags[errorTag] = typedArrayTags[funcTag] =
+typedArrayTags[mapTag] = typedArrayTags[numberTag] =
+typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
+typedArrayTags[setTag] = typedArrayTags[stringTag] =
+typedArrayTags[weakMapTag] = false;
 
 /**
  * A specialized version of `_.forEach` for arrays without support for
@@ -102,7 +104,8 @@ var objectProto = Object.prototype;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -152,16 +155,16 @@ function assignValue(object, key, value) {
  * @param {Object} source The source object.
  * @param {number} srcIndex The index of `source`.
  * @param {Function} [customizer] The function to customize merged values.
- * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ *  counterparts.
  */
 function baseMerge(object, source, srcIndex, customizer, stack) {
   if (object === source) {
     return;
   }
-  var props = (isArray(source) || isTypedArray(source))
-    ? undefined
-    : keysIn(source);
-
+  if (!(isArray(source) || isTypedArray(source))) {
+    var props = keysIn(source);
+  }
   arrayEach(props || source, function(srcValue, key) {
     if (props) {
       key = srcValue;
@@ -196,7 +199,8 @@ function baseMerge(object, source, srcIndex, customizer, stack) {
  * @param {number} srcIndex The index of `source`.
  * @param {Function} mergeFunc The function to merge values.
  * @param {Function} [customizer] The function to customize assigned values.
- * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ *  counterparts.
  */
 function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
   var objValue = object[key],
@@ -224,7 +228,7 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
       }
       else {
         isCommon = false;
-        newValue = baseClone(srcValue, !customizer);
+        newValue = baseClone(srcValue, true);
       }
     }
     else if (isPlainObject(srcValue) || isArguments(srcValue)) {
@@ -233,7 +237,7 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
       }
       else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
         isCommon = false;
-        newValue = baseClone(srcValue, !customizer);
+        newValue = baseClone(srcValue, true);
       }
       else {
         newValue = objValue;
@@ -290,7 +294,7 @@ function copyArray(source, array) {
  *
  * @private
  * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
+ * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
  * @returns {Object} Returns `object`.
  */
@@ -304,7 +308,7 @@ function copyObject(source, props, object) {
  *
  * @private
  * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
+ * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
  * @param {Function} [customizer] The function to customize copied values.
  * @returns {Object} Returns `object`.
@@ -363,8 +367,9 @@ function createAssigner(assigner) {
 /**
  * Gets the "length" property value of `object`.
  *
- * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
- * that affects Safari on at least iOS 8.1-8.3 ARM64.
+ * **Note:** This function is used to avoid a
+ * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
+ * Safari on at least iOS 8.1-8.3 ARM64.
  *
  * @private
  * @param {Object} object The object to query.
@@ -379,7 +384,8 @@ var getLength = baseProperty('length');
  * @param {*} value The potential iteratee value argument.
  * @param {*} index The potential iteratee index or key argument.
  * @param {*} object The potential iteratee object argument.
- * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
+ * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
+ *  else `false`.
  */
 function isIterateeCall(value, index, object) {
   if (!isObject(object)) {
@@ -387,19 +393,22 @@ function isIterateeCall(value, index, object) {
   }
   var type = typeof index;
   if (type == 'number'
-      ? (isArrayLike(object) && isIndex(index, object.length))
-      : (type == 'string' && index in object)) {
+        ? (isArrayLike(object) && isIndex(index, object.length))
+        : (type == 'string' && index in object)
+      ) {
     return eq(object[index], value);
   }
   return false;
 }
 
 /**
- * Performs a [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * Performs a
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
  * comparison between two values to determine if they are equivalent.
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to compare.
  * @param {*} other The other value to compare.
@@ -433,9 +442,11 @@ function eq(value, other) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isArguments(function() { return arguments; }());
@@ -455,10 +466,12 @@ function isArguments(value) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @type {Function}
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isArray([1, 2, 3]);
@@ -482,6 +495,7 @@ var isArray = Array.isArray;
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
@@ -509,9 +523,11 @@ function isArrayLike(value) {
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object, else `false`.
+ * @returns {boolean} Returns `true` if `value` is an array-like object,
+ *  else `false`.
  * @example
  *
  * _.isArrayLikeObject([1, 2, 3]);
@@ -535,9 +551,11 @@ function isArrayLikeObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isFunction(_);
@@ -557,13 +575,16 @@ function isFunction(value) {
 /**
  * Checks if `value` is a valid array-like length.
  *
- * **Note:** This function is loosely based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+ * **Note:** This function is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @returns {boolean} Returns `true` if `value` is a valid length,
+ *  else `false`.
  * @example
  *
  * _.isLength(3);
@@ -584,11 +605,13 @@ function isLength(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is an object, else `false`.
@@ -617,6 +640,7 @@ function isObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
@@ -643,9 +667,11 @@ function isObjectLike(value) {
  *
  * @static
  * @memberOf _
+ * @since 3.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isTypedArray(new Uint8Array);
@@ -660,11 +686,12 @@ function isTypedArray(value) {
 }
 
 /**
- * Converts `value` to a plain object flattening inherited enumerable
- * properties of `value` to own properties of the plain object.
+ * Converts `value` to a plain object flattening inherited enumerable string
+ * keyed properties of `value` to own properties of the plain object.
  *
  * @static
  * @memberOf _
+ * @since 3.0.0
  * @category Lang
  * @param {*} value The value to convert.
  * @returns {Object} Returns the converted plain object.
@@ -688,17 +715,18 @@ function toPlainObject(value) {
 
 /**
  * This method is like `_.assign` except that it recursively merges own and
- * inherited enumerable properties of source objects into the destination
- * object. Source properties that resolve to `undefined` are skipped if a
- * destination value exists. Array and plain object properties are merged
- * recursively.Other objects and value types are overridden by assignment.
- * Source objects are applied from left to right. Subsequent sources
- * overwrite property assignments of previous sources.
+ * inherited enumerable string keyed properties of source objects into the
+ * destination object. Source properties that resolve to `undefined` are
+ * skipped if a destination value exists. Array and plain object properties
+ * are merged recursively.Other objects and value types are overridden by
+ * assignment. Source objects are applied from left to right. Subsequent
+ * sources overwrite property assignments of previous sources.
  *
  * **Note:** This method mutates `object`.
  *
  * @static
  * @memberOf _
+ * @since 0.5.0
  * @category Object
  * @param {Object} object The destination object.
  * @param {...Object} [sources] The source objects.
diff --git a/lodash.merge/package.json b/lodash.merge/package.json
index 6a841626f..dfddfd58d 100644
--- a/lodash.merge/package.json
+++ b/lodash.merge/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.merge",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.merge` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
diff --git a/lodash.mergewith/LICENSE b/lodash.mergewith/LICENSE
index bcbe13d67..e0c69d560 100644
--- a/lodash.mergewith/LICENSE
+++ b/lodash.mergewith/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.mergewith/README.md b/lodash.mergewith/README.md
index 8c3ff3d1e..cfc51518f 100644
--- a/lodash.mergewith/README.md
+++ b/lodash.mergewith/README.md
@@ -1,4 +1,4 @@
-# lodash.mergewith v4.3.3
+# lodash.mergewith v4.3.4
 
 The [lodash](https://lodash.com/) method `_.mergeWith` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var mergeWith = require('lodash.mergewith');
 ```
 
-See the [documentation](https://lodash.com/docs#mergeWith) or [package source](https://github.com/lodash/lodash/blob/4.3.3-npm-packages/lodash.mergewith) for more details.
+See the [documentation](https://lodash.com/docs#mergeWith) or [package source](https://github.com/lodash/lodash/blob/4.3.4-npm-packages/lodash.mergewith) for more details.
diff --git a/lodash.mergewith/index.js b/lodash.mergewith/index.js
index ba1b64a25..00b0511f7 100644
--- a/lodash.mergewith/index.js
+++ b/lodash.mergewith/index.js
@@ -1,10 +1,10 @@
 /**
- * lodash 4.3.3 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.4 (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
  */
 var Stack = require('lodash._stack'),
     baseClone = require('lodash._baseclone'),
@@ -32,6 +32,7 @@ var argsTag = '[object Arguments]',
     weakMapTag = '[object WeakMap]';
 
 var arrayBufferTag = '[object ArrayBuffer]',
+    dataViewTag = '[object DataView]',
     float32Tag = '[object Float32Array]',
     float64Tag = '[object Float64Array]',
     int8Tag = '[object Int8Array]',
@@ -54,11 +55,12 @@ typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
 typedArrayTags[uint32Tag] = true;
 typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
 typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-typedArrayTags[dateTag] = typedArrayTags[errorTag] =
-typedArrayTags[funcTag] = typedArrayTags[mapTag] =
-typedArrayTags[numberTag] = typedArrayTags[objectTag] =
-typedArrayTags[regexpTag] = typedArrayTags[setTag] =
-typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
+typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
+typedArrayTags[errorTag] = typedArrayTags[funcTag] =
+typedArrayTags[mapTag] = typedArrayTags[numberTag] =
+typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
+typedArrayTags[setTag] = typedArrayTags[stringTag] =
+typedArrayTags[weakMapTag] = false;
 
 /**
  * A specialized version of `_.forEach` for arrays without support for
@@ -102,7 +104,8 @@ var objectProto = Object.prototype;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -152,16 +155,16 @@ function assignValue(object, key, value) {
  * @param {Object} source The source object.
  * @param {number} srcIndex The index of `source`.
  * @param {Function} [customizer] The function to customize merged values.
- * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ *  counterparts.
  */
 function baseMerge(object, source, srcIndex, customizer, stack) {
   if (object === source) {
     return;
   }
-  var props = (isArray(source) || isTypedArray(source))
-    ? undefined
-    : keysIn(source);
-
+  if (!(isArray(source) || isTypedArray(source))) {
+    var props = keysIn(source);
+  }
   arrayEach(props || source, function(srcValue, key) {
     if (props) {
       key = srcValue;
@@ -196,7 +199,8 @@ function baseMerge(object, source, srcIndex, customizer, stack) {
  * @param {number} srcIndex The index of `source`.
  * @param {Function} mergeFunc The function to merge values.
  * @param {Function} [customizer] The function to customize assigned values.
- * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ *  counterparts.
  */
 function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
   var objValue = object[key],
@@ -224,7 +228,7 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
       }
       else {
         isCommon = false;
-        newValue = baseClone(srcValue, !customizer);
+        newValue = baseClone(srcValue, true);
       }
     }
     else if (isPlainObject(srcValue) || isArguments(srcValue)) {
@@ -233,7 +237,7 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
       }
       else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
         isCommon = false;
-        newValue = baseClone(srcValue, !customizer);
+        newValue = baseClone(srcValue, true);
       }
       else {
         newValue = objValue;
@@ -290,7 +294,7 @@ function copyArray(source, array) {
  *
  * @private
  * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
+ * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
  * @returns {Object} Returns `object`.
  */
@@ -304,7 +308,7 @@ function copyObject(source, props, object) {
  *
  * @private
  * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
+ * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
  * @param {Function} [customizer] The function to customize copied values.
  * @returns {Object} Returns `object`.
@@ -363,8 +367,9 @@ function createAssigner(assigner) {
 /**
  * Gets the "length" property value of `object`.
  *
- * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
- * that affects Safari on at least iOS 8.1-8.3 ARM64.
+ * **Note:** This function is used to avoid a
+ * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
+ * Safari on at least iOS 8.1-8.3 ARM64.
  *
  * @private
  * @param {Object} object The object to query.
@@ -379,7 +384,8 @@ var getLength = baseProperty('length');
  * @param {*} value The potential iteratee value argument.
  * @param {*} index The potential iteratee index or key argument.
  * @param {*} object The potential iteratee object argument.
- * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
+ * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
+ *  else `false`.
  */
 function isIterateeCall(value, index, object) {
   if (!isObject(object)) {
@@ -387,19 +393,22 @@ function isIterateeCall(value, index, object) {
   }
   var type = typeof index;
   if (type == 'number'
-      ? (isArrayLike(object) && isIndex(index, object.length))
-      : (type == 'string' && index in object)) {
+        ? (isArrayLike(object) && isIndex(index, object.length))
+        : (type == 'string' && index in object)
+      ) {
     return eq(object[index], value);
   }
   return false;
 }
 
 /**
- * Performs a [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * Performs a
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
  * comparison between two values to determine if they are equivalent.
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to compare.
  * @param {*} other The other value to compare.
@@ -433,9 +442,11 @@ function eq(value, other) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isArguments(function() { return arguments; }());
@@ -455,10 +466,12 @@ function isArguments(value) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @type {Function}
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isArray([1, 2, 3]);
@@ -482,6 +495,7 @@ var isArray = Array.isArray;
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
@@ -509,9 +523,11 @@ function isArrayLike(value) {
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object, else `false`.
+ * @returns {boolean} Returns `true` if `value` is an array-like object,
+ *  else `false`.
  * @example
  *
  * _.isArrayLikeObject([1, 2, 3]);
@@ -535,9 +551,11 @@ function isArrayLikeObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isFunction(_);
@@ -557,13 +575,16 @@ function isFunction(value) {
 /**
  * Checks if `value` is a valid array-like length.
  *
- * **Note:** This function is loosely based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+ * **Note:** This function is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @returns {boolean} Returns `true` if `value` is a valid length,
+ *  else `false`.
  * @example
  *
  * _.isLength(3);
@@ -584,11 +605,13 @@ function isLength(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
+ * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is an object, else `false`.
@@ -617,6 +640,7 @@ function isObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
@@ -643,9 +667,11 @@ function isObjectLike(value) {
  *
  * @static
  * @memberOf _
+ * @since 3.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @returns {boolean} Returns `true` if `value` is correctly classified,
+ *  else `false`.
  * @example
  *
  * _.isTypedArray(new Uint8Array);
@@ -660,11 +686,12 @@ function isTypedArray(value) {
 }
 
 /**
- * Converts `value` to a plain object flattening inherited enumerable
- * properties of `value` to own properties of the plain object.
+ * Converts `value` to a plain object flattening inherited enumerable string
+ * keyed properties of `value` to own properties of the plain object.
  *
  * @static
  * @memberOf _
+ * @since 3.0.0
  * @category Lang
  * @param {*} value The value to convert.
  * @returns {Object} Returns the converted plain object.
@@ -689,7 +716,7 @@ function toPlainObject(value) {
 /**
  * This method is like `_.merge` except that it accepts `customizer` which
  * is invoked to produce the merged values of the destination and source
- * properties. If `customizer` returns `undefined` merging is handled by the
+ * properties. If `customizer` returns `undefined`, merging is handled by the
  * method instead. The `customizer` is invoked with seven arguments:
  * (objValue, srcValue, key, object, source, stack).
  *
@@ -697,6 +724,7 @@ function toPlainObject(value) {
  *
  * @static
  * @memberOf _
+ * @since 4.0.0
  * @category Object
  * @param {Object} object The destination object.
  * @param {...Object} sources The source objects.
diff --git a/lodash.mergewith/package.json b/lodash.mergewith/package.json
index 9bbb821aa..306874bdf 100644
--- a/lodash.mergewith/package.json
+++ b/lodash.mergewith/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash.mergewith",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "The lodash method `_.mergeWith` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",