diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 7ba48b9f3b..4bd54b387a 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -8,6 +8,7 @@
 - **Popup** - Added new settings `autoRemove`, which is enabled by default. This will add special event listeners to auto hide a popup if the triggering element is removed from the DOM. This is useful in controlled DOM environments like Meteor/Ember/React to ensure a popup auto-hides itself when a page navigation or other DOM change occurs that may not trigger `mouseout`.
 - **Dropdown** - Multiple select dropdown now sizes current dropdown input based on rendered width of a hidden element, not using an estimate based on character count. This means search will never break to a second line earlier than would normally fit in current line.
 - **Dropdown** - Added new setting for search selection `hideAdditions` this will remove showing user additions inside the menu, making for a more intuitive adding process. Dropdowns now have a new state `empty` which will format an active dropdown with empty results. #3791
+- **Dropdown** - Adds new `allowReselection` option to trigger `onChange` events even when reselecting same value ***NEEEDS DOCUMENTATION***
 - **All UI** - All UI now include _all_ sizing variations, `mini`, `tiny`, `small`, `large`, `big`, `huge`, `massive`. Headers remain with only 5 sizes `small-huge` to match `H1-H5`
 - **Icons** -  Icons now use the latest Font Awesome `4.5.0` Icons. 50+ new icons+ are included. Thanks @BreadMaker for the PR and @davegandy for the font!
 - **Progress** - Progress now uses a polling interval for updates. Rapidly updating the progress bar over a period quicker than the animation duration (for example with xhr `onprogress` events say every 50ms) will now appear smooth as butter.
diff --git a/src/definitions/behaviors/form.js b/src/definitions/behaviors/form.js
index 14ef0bd590..7cc653ef13 100644
--- a/src/definitions/behaviors/form.js
+++ b/src/definitions/behaviors/form.js
@@ -1066,7 +1066,7 @@ $.fn.form.settings = {
   regExp: {
     bracket : /\[(.*)\]/i,
     decimal : /^\d*(\.)\d+/,
-    email   : /.+@.+\..+/i,
+    email   : /^[a-z0-9!#$%&'*+\/=?^_`{|}~.-]+@[a-z0-9]([a-z0-9-]*[a-z0-9])?(\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$/i,
     escape  : /[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,
     flags   : /^\/(.*)\/(.*)?/,
     integer : /^\-?\d+$/,
@@ -1174,10 +1174,7 @@ $.fn.form.settings = {
 
     // is most likely an email
     email: function(value){
-      var
-        emailRegExp = new RegExp($.fn.form.settings.regExp.email, 'i')
-      ;
-      return emailRegExp.test(value);
+      return $.fn.form.settings.regExp.email.test(value);
     },
 
     // value is most likely url
diff --git a/src/definitions/collections/form.less b/src/definitions/collections/form.less
index f212371bc2..905b4e5ca6 100755
--- a/src/definitions/collections/form.less
+++ b/src/definitions/collections/form.less
@@ -322,7 +322,7 @@
 .ui.form ::-webkit-input-placeholder {
   color: @inputPlaceholderColor;
 }
-.ui.form ::-ms-input-placeholder {
+.ui.form :-ms-input-placeholder {
   color: @inputPlaceholderColor;
 }
 .ui.form ::-moz-placeholder {
@@ -332,7 +332,7 @@
 .ui.form :focus::-webkit-input-placeholder {
   color: @inputPlaceholderFocusColor;
 }
-.ui.form :focus::-ms-input-placeholder {
+.ui.form :focus:-ms-input-placeholder {
   color: @inputPlaceholderFocusColor;
 }
 .ui.form :focus::-moz-placeholder {
@@ -343,8 +343,8 @@
 .ui.form .error ::-webkit-input-placeholder {
   color: @inputErrorPlaceholderColor;
 }
-.ui.form .error ::-ms-input-placeholder {
-  color: @inputErrorPlaceholderColor;
+.ui.form .error :-ms-input-placeholder {
+  color: @inputErrorPlaceholderColor !important;
 }
 .ui.form .error ::-moz-placeholder {
   color: @inputErrorPlaceholderColor;
@@ -353,8 +353,8 @@
 .ui.form .error :focus::-webkit-input-placeholder {
   color: @inputErrorPlaceholderFocusColor;
 }
-.ui.form .error :focus::-ms-input-placeholder {
-  color: @inputErrorPlaceholderFocusColor;
+.ui.form .error :focus:-ms-input-placeholder {
+  color: @inputErrorPlaceholderFocusColor !important;
 }
 .ui.form .error :focus::-moz-placeholder {
   color: @inputErrorPlaceholderFocusColor;
diff --git a/src/definitions/elements/input.less b/src/definitions/elements/input.less
index e78c5ac3ab..fc4e5b604a 100755
--- a/src/definitions/elements/input.less
+++ b/src/definitions/elements/input.less
@@ -69,7 +69,7 @@
 .ui.input input::-moz-placeholder {
   color: @placeholderColor;
 }
-.ui.input input::-ms-input-placeholder {
+.ui.input input:-ms-input-placeholder {
   color: @placeholderColor;
 }
 
@@ -163,8 +163,8 @@
 .ui.input input:focus::-moz-placeholder {
   color: @placeholderFocusColor;
 }
-.ui.input.focus input::-ms-input-placeholder,
-.ui.input input:focus::-ms-input-placeholder {
+.ui.input.focus input:-ms-input-placeholder,
+.ui.input input:focus:-ms-input-placeholder {
   color: @placeholderFocusColor;
 }
 
@@ -188,8 +188,8 @@
 .ui.input.error input::-moz-placeholder {
   color: @placeholderErrorColor;
 }
-.ui.input.error input::-ms-input-placeholder {
-  color: @placeholderErrorColor;
+.ui.input.error input:-ms-input-placeholder {
+  color: @placeholderErrorColor !important;
 }
 
 /* Focused Error Placeholder */
@@ -199,8 +199,8 @@
 .ui.input.error input:focus::-moz-placeholder {
   color: @placeholderErrorFocusColor;
 }
-.ui.input.error input:focus::-ms-input-placeholder {
-  color: @placeholderErrorFocusColor;
+.ui.input.error input:focus:-ms-input-placeholder {
+  color: @placeholderErrorFocusColor !important;
 }
 
 /*******************************
@@ -246,7 +246,7 @@
 .ui.transparent.inverted.input input::-moz-placeholder {
   color: @transparentInvertedPlaceholderColor;
 }
-.ui.transparent.inverted.input input::-ms-input-placeholder {
+.ui.transparent.inverted.input input:-ms-input-placeholder {
   color: @transparentInvertedPlaceholderColor;
 }
 
diff --git a/src/definitions/modules/dropdown.js b/src/definitions/modules/dropdown.js
index eeb2dc9332..1c973f4ba1 100644
--- a/src/definitions/modules/dropdown.js
+++ b/src/definitions/modules/dropdown.js
@@ -2285,7 +2285,7 @@ $.fn.dropdown = function(parameters) {
               newValue
             ;
             if(hasInput) {
-              if(stringValue == currentValue) {
+              if(settings.allowReselection && stringValue == currentValue) {
                 module.verbose('Skipping value update already same value', value, currentValue);
                 if(!module.is.initialLoad()) {
                   return;
@@ -3185,7 +3185,7 @@ $.fn.dropdown = function(parameters) {
 
         escape: {
           value: function(value) {
-            let
+            var
               multipleValues = $.isArray(value),
               stringValue    = (typeof value === 'string'),
               isUnparsable   = (!stringValue && !multipleValues),
@@ -3430,6 +3430,7 @@ $.fn.dropdown.settings = {
   delimiter              : ',',        // when multiselect uses normal <input> the values will be delimited with this character
 
   showOnFocus            : true,       // show menu on focus
+  allowReselection       : false,      // whether current value should trigger callbacks when reselected
   allowTab               : true,       // add tabindex to element
   allowCategorySelection : false,      // allow elements with sub-menus to be selected
 
diff --git a/src/definitions/modules/popup.js b/src/definitions/modules/popup.js
index edc7206e07..c80ac7c7a1 100644
--- a/src/definitions/modules/popup.js
+++ b/src/definitions/modules/popup.js
@@ -191,6 +191,11 @@ $.fn.popup = function(parameters) {
             }
           },
           hideGracefully: function(event) {
+            var
+              $target = $(event.target),
+              isInDOM = $.contains(document.documentElement, event.target),
+              inPopup = ($target.closest(selector.popup).length > 0)
+            ;
             // don't close on clicks inside popup
             if(event && $(event.target).closest(selector.popup).length === 0) {
               module.debug('Click occurred outside popup hiding popup');
diff --git a/src/definitions/modules/progress.js b/src/definitions/modules/progress.js
index ccee96bfc3..132199d7c7 100644
--- a/src/definitions/modules/progress.js
+++ b/src/definitions/modules/progress.js
@@ -601,7 +601,7 @@ $.fn.progress = function(parameters) {
 
         update: {
           toNextValue: function() {
-            let
+            var
               nextValue = module.nextValue
             ;
             if(nextValue) {