diff --git a/morphic.js b/morphic.js
index 5a53190b..eb07c8e3 100644
--- a/morphic.js
+++ b/morphic.js
@@ -153,7 +153,7 @@
 
     IV. open issues
     ----------------
-    - clipboard support (copy & paste)
+    - clipboard support (copy & paste) for non-textual data
     - native (unscaled) high-resolution display support
 
 
@@ -169,10 +169,11 @@
     - Chrome for Windows
     - Chrome for Mac
     - Chrome for Android
-    - Safari for Windows
+    - Safari for Windows (deprecated)
     - safari for Mac
     - Safari for iOS (mobile)
     - IE for Windows
+    - Edge for Windows
     - Opera for Windows
     - Opera for Mac
 
@@ -262,10 +263,11 @@
                 window.onload = function () {
                     world = new WorldMorph(
                         document.getElementById('world'));
-                    setInterval(loop, 50);
+                    loop();
                 };
 
                 function loop() {
+                    requestAnimationFrame(loop);
                     world.doOneCycle();
                 }
             </script>
@@ -309,10 +311,11 @@
                         document.getElementById('world1'), false);
                     world2 = new WorldMorph(
                         document.getElementById('world2'), false);
-                    setInterval(loop, 50);
+                    loop();
                 };
 
                 function loop() {
+                    requestAnimationFrame(loop);
                     world1.doOneCycle();
                     world2.doOneCycle();
                 }
@@ -377,10 +380,11 @@
                         x = 0;
                         y += 1;
                     }
-                    setInterval(loop, 50);
+                    loop();
                 };
 
                 function loop() {
+                    requestAnimationFrame(loop);
                     world.doOneCycle();
                 }
             </script>
@@ -1043,6 +1047,7 @@
     background texture handling, countless bug fixes and optimizations.
     Ian Reynolds contributed backspace key handling for Chrome.
     Davide Della Casa contributed performance optimizations for Firefox.
+    Jason N (@cyderize) contributed native copy & paste for text editing.
 
     - Jens Mönig
 */
@@ -1052,7 +1057,7 @@
 /*global window, HTMLCanvasElement, getMinimumFontHeight, FileReader, Audio,
 FileList, getBlurredShadowSupport*/
 
-var morphicVersion = '2015-December-15';
+var morphicVersion = '2015-December-21';
 var modules = {}; // keep track of additional loaded modules
 var useBlurredShadows = getBlurredShadowSupport(); // check for Chrome-bug
 
@@ -4498,17 +4503,17 @@ CursorMorph.prototype.init = function (aStringOrTextMorph) {
     this.gotoSlot(this.slot);
 
     // Add hidden text box for copying and pasting
-    this.hiddenText = document.createElement('textarea');
-    this.hiddenText.style.position = 'absolute';
-    this.hiddenText.style.right = '101%'; // placed just out of view
+    this.clipboardHandler = document.createElement('textarea');
+    this.clipboardHandler.style.position = 'absolute';
+    this.clipboardHandler.style.right = '101%'; // placed just out of view
 
-    document.body.appendChild(this.hiddenText);
+    document.body.appendChild(this.clipboardHandler);
 
-    this.hiddenText.value = this.target.selection();
-    this.hiddenText.focus();
-    this.hiddenText.select();
+    this.clipboardHandler.value = this.target.selection();
+    this.clipboardHandler.focus();
+    this.clipboardHandler.select();
 
-    this.hiddenText.addEventListener(
+    this.clipboardHandler.addEventListener(
         'keypress',
         function (event) {
             myself.processKeyPress(event);
@@ -4518,7 +4523,7 @@ CursorMorph.prototype.init = function (aStringOrTextMorph) {
         false
     );
 
-    this.hiddenText.addEventListener(
+    this.clipboardHandler.addEventListener(
         'keydown',
         function (event) {
             myself.processKeyDown(event);
@@ -4535,7 +4540,7 @@ CursorMorph.prototype.init = function (aStringOrTextMorph) {
         false
     );
     
-    this.hiddenText.addEventListener(
+    this.clipboardHandler.addEventListener(
         'input',
         function (event) {
             if (this.value === '') {
@@ -4898,8 +4903,8 @@ CursorMorph.prototype.destroy = function () {
         this.target.drawNew();
         this.target.changed();
     }
-    if (this.hiddenText) {
-        document.body.removeChild(this.hiddenText);
+    if (this.clipboardHandler) {
+        document.body.removeChild(this.clipboardHandler);
     }
     CursorMorph.uber.destroy.call(this);
 };
diff --git a/morphic.txt b/morphic.txt
index fb144c57..68280deb 100755
--- a/morphic.txt
+++ b/morphic.txt
@@ -9,7 +9,7 @@
 
 	Copyright (C) 2015 by Jens Mönig
 
-	this documentation last changed: Sep 23, 2015
+	this documentation last changed: Dec 21, 2015
 
 	This file is part of Snap!.
 
@@ -154,7 +154,7 @@
 
     IV. open issues
     ----------------
-    - clipboard support (copy & paste)
+    - clipboard support (copy & paste) for non-textual data
     - native (unscaled) high-resolution display support
 
 
@@ -170,10 +170,11 @@
     - Chrome for Windows
     - Chrome for Mac
     - Chrome for Android
-    - Safari for Windows
+    - Safari for Windows (deprecated)
     - safari for Mac
     - Safari for iOS (mobile)
     - IE for Windows
+    - Edge for Windows
     - Opera for Windows
     - Opera for Mac
 
@@ -263,10 +264,11 @@
                 window.onload = function () {
                     world = new WorldMorph(
                         document.getElementById('world'));
-                    setInterval(loop, 50);
+                    loop();
                 };
 
                 function loop() {
+                    requestAnimationFrame(loop);
                     world.doOneCycle();
                 }
             </script>
@@ -310,10 +312,11 @@
                         document.getElementById('world1'), false);
                     world2 = new WorldMorph(
                         document.getElementById('world2'), false);
-                    setInterval(loop, 50);
+                    loop();
                 };
 
                 function loop() {
+                    requestAnimationFrame(loop);
                     world1.doOneCycle();
                     world2.doOneCycle();
                 }
@@ -378,10 +381,11 @@
                         x = 0;
                         y += 1;
                     }
-                    setInterval(loop, 50);
+                    loop();
                 };
 
                 function loop() {
+                    requestAnimationFrame(loop);
                     world.doOneCycle();
                 }
             </script>
@@ -1044,5 +1048,6 @@
     background texture handling, countless bug fixes and optimizations.
     Ian Reynolds contributed backspace key handling for Chrome.
     Davide Della Casa contributed performance optimizations for Firefox.
+    Jason N (@cyderize) contributed native copy & paste for text editing.
 
     - Jens Mönig