diff --git a/src/brackets.js b/src/brackets.js
index 094e3902f94..e0d5e728334 100644
--- a/src/brackets.js
+++ b/src/brackets.js
@@ -135,8 +135,6 @@ define(function (require, exports, module) {
     require("extensibility/ExtensionManagerDialog");
     require("editor/ImageViewer");
     
-    // Deprecated modules loaded just so extensions can still use them for now
-    require("utils/CollectionUtils");
     // Compatibility shims for filesystem API migration
     require("project/FileIndexManager");
     require("file/NativeFileSystem");
diff --git a/src/utils/CollectionUtils.js b/src/utils/CollectionUtils.js
deleted file mode 100644
index 373d424fef6..00000000000
--- a/src/utils/CollectionUtils.js
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (c) 2012 Adobe Systems Incorporated. All rights reserved.
- *  
- * 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.
- * 
- */
-
-/*jslint vars: true, plusplus: true, devel: true, nomen: true, regexp: true, indent: 4, maxerr: 50 */
-/*global define */
-
-/**
- *  Utilities functions related to data collections (arrays & maps)
- */
-define(function (require, exports, module) {
-    "use strict";
-    
-    var _ = require("thirdparty/lodash");
-
-    /**
-     * Returns the first index in 'array' for which isMatch() returns true, or -1 if none
-     * @param {!Array.<*>|jQueryObject} array
-     * @param {!function(*, Number):boolean} isMatch Passed (item, index), same as with forEach()
-     * @deprecated
-     */
-    function indexOf(array, isMatch) {
-        console.warn("CollectionUtils.indexOf is deprecated. Use _.findIndex instead.");
-        return _.findIndex(array, isMatch);
-    }
-    
-    /**
-     * Iterates over all the properties in an object or elements in an array. Differs from
-     * $.each in that it always iterates over the properties of an object, even if it has a length
-     * property making it look like an array.
-     * @param {*} object The object or array to iterate over.
-     * @param {function(value, key)} callback The function that will be executed on every object.
-     * @deprecated
-     */
-    function forEach(object, callback) {
-        console.warn("CollectionUtils.forEach is deprecated. Use _.forEach instead.");
-        _.forEach(object, callback);
-    }
-    
-    /**
-     * Iterates over all the properties in an object or elements in an array. If a callback returns a
-     * truthly value then it will immediately return true, if not, it will return false. Differs from
-     * $.each in that it always iterates over the properties of an object, even if it has a length
-     * property making it look like an array.
-     * @param {*} object The object or array to iterate over.
-     * @param {function(value, key)} callback The function that will be executed on every object.
-     * @return {boolean}
-     * @deprecated
-     */
-    function some(object, callback) {
-        console.warn("CollectionUtils.some is deprecated. Use _.some instead.");
-        return _.some(object, callback);
-    }
-    
-    /**
-     * Returns true if the object has the specified property.
-     * This calls the Object.prototype.hasOwnProperty function directly, rather than
-     * depending on the object having a function named "hasOwnProperty". This way the
-     * object *can* have a property named "hasOwnProperty" that is not a function.
-     * @param {*} object The object to test
-     * @param {string} property The name of the property to query
-     * @return {boolean} True if the object contains the property
-     * @deprecated
-     */
-    function hasProperty(object, property) {
-        console.warn("CollectionUtils.hasProperty is deprecated. Use _.has instead.");
-        return _.has(object, property);
-    }
-    
-    // Define public API
-    exports.indexOf     = indexOf;
-    exports.forEach     = forEach;
-    exports.some        = some;
-    exports.hasProperty = hasProperty;
-});
diff --git a/src/utils/StringUtils.js b/src/utils/StringUtils.js
index 9eaac92b292..7604f4f9d96 100644
--- a/src/utils/StringUtils.js
+++ b/src/utils/StringUtils.js
@@ -51,14 +51,6 @@ define(function (require, exports, module) {
         });
     }
 
-    /**
-     * @deprecated Use lodash `escape()` instead.
-     */
-    function htmlEscape(str) {
-        console.warn("StringUtils.htmlEscape is deprecated. Use _.escape instead.");
-        return _.escape(str);
-    }
-
     function regexEscape(str) {
         return str.replace(/([.?*+\^$\[\]\\(){}|\-])/g, "\\$1");
     }
@@ -221,7 +213,6 @@ define(function (require, exports, module) {
 
     // Define public API
     exports.format              = format;
-    exports.htmlEscape          = htmlEscape;
     exports.regexEscape         = regexEscape;
     exports.jQueryIdEscape      = jQueryIdEscape;
     exports.getLines            = getLines;