6 files changed, 26 insertions, 10 deletions
diff --git a/assets/stylesheets/bootstrap/_navbar.scss b/assets/stylesheets/bootstrap/_navbar.scss
index ffe133b..5d89436 100644
--- a/assets/stylesheets/bootstrap/_navbar.scss
+++ b/assets/stylesheets/bootstrap/_navbar.scss
@@ -5,7 +5,7 @@
 
 .navbar {
   position: relative;
-  padding: $navbar-padding-vertical $navbar-padding-horizontal;
+  padding: $navbar-padding-y $navbar-padding-x;
   @include clearfix;
 
   @include media-breakpoint-up(sm) {
@@ -89,8 +89,8 @@
   width: 1px;
   padding-top: .425rem;
   padding-bottom: .425rem;
-  margin-right: $navbar-padding-horizontal;
-  margin-left:  $navbar-padding-horizontal;
+  margin-right: $navbar-padding-x;
+  margin-left:  $navbar-padding-x;
   overflow: hidden;
 
   &::before {
diff --git a/assets/stylesheets/bootstrap/_progress.scss b/assets/stylesheets/bootstrap/_progress.scss
index 61e13b0..382307b 100644
--- a/assets/stylesheets/bootstrap/_progress.scss
+++ b/assets/stylesheets/bootstrap/_progress.scss
@@ -19,12 +19,19 @@
   margin-bottom: $spacer-y;
 }
 .progress[value] {
-  // IE10 uses `color` to set the bar background-color
-  color: #0074d9;
+  // Set overall background
+  background-color: #eee;
   // Remove Firefox and Opera border
   border: 0;
   // Reset the default appearance
   appearance: none;
+  // Set overall border radius
+  @include border-radius($border-radius);
+}
+.progress[value]::-ms-fill {
+  background-color: #0074d9;
+  // Remove right-hand border of value bar from IE10+/Edge
+  border: 0;
 }
 .progress[value]::-webkit-progress-bar {
   background-color: #eee;
@@ -111,6 +118,10 @@
   @include gradient-striped();
   background-size: $spacer-y $spacer-y;
 }
+.progress-striped[value]::-ms-fill {
+  @include gradient-striped();
+  background-size: $spacer-y $spacer-y;
+}
 // IE9
 @media screen and (min-width:0\0) {
   .progress-bar-striped {
diff --git a/assets/stylesheets/bootstrap/_variables.scss b/assets/stylesheets/bootstrap/_variables.scss
index 44cc3cb..f02d4a1 100644
--- a/assets/stylesheets/bootstrap/_variables.scss
+++ b/assets/stylesheets/bootstrap/_variables.scss
@@ -365,8 +365,8 @@ $zindex-modal:             1050 !default;
 // Navbar
 
 $navbar-border-radius:              $border-radius !default;
-$navbar-padding-horizontal:         $spacer !default;
-$navbar-padding-vertical:           ($spacer / 2) !default;
+$navbar-padding-x:                  $spacer !default;
+$navbar-padding-y:                  ($spacer / 2) !default;
 
 $navbar-dark-color:                 rgba(255,255,255,.5) !default;
 $navbar-dark-hover-color:           rgba(255,255,255,.75) !default;
diff --git a/assets/stylesheets/bootstrap/mixins/_progress.scss b/assets/stylesheets/bootstrap/mixins/_progress.scss
index e174141..9622d79 100644
--- a/assets/stylesheets/bootstrap/mixins/_progress.scss
+++ b/assets/stylesheets/bootstrap/mixins/_progress.scss
@@ -9,6 +9,11 @@
     background-color: $color;
   }
 
+  // IE10+, Microsoft Edge
+  &[value]::-ms-fill {
+    background-color: $color;
+  }
+
   // IE9
   @media screen and (min-width:0\0) {
     .progress-bar {
diff --git a/lib/bootstrap/version.rb b/lib/bootstrap/version.rb
index 7273620..6c8bba4 100644
--- a/lib/bootstrap/version.rb
+++ b/lib/bootstrap/version.rb
@@ -1,4 +1,4 @@
 module Bootstrap
   VERSION       = '4.0.0.alpha3'
-  BOOTSTRAP_SHA = '48938155eb24b4ccdde09426066869504c6dab3c'
+  BOOTSTRAP_SHA = '5cb503e6306116bce6de78c8b7436a13db851fab'
 end
diff --git a/templates/project/_bootstrap-variables.scss b/templates/project/_bootstrap-variables.scss
index 2ab4f07..474f2e0 100644
--- a/templates/project/_bootstrap-variables.scss
+++ b/templates/project/_bootstrap-variables.scss
@@ -366,8 +366,8 @@
 // Navbar
 
 // $navbar-border-radius:              $border-radius;
-// $navbar-padding-horizontal:         $spacer;
-// $navbar-padding-vertical:           ($spacer / 2);
+// $navbar-padding-x:                  $spacer;
+// $navbar-padding-y:                  ($spacer / 2);
 
 // $navbar-dark-color:                 rgba(255,255,255,.5);
 // $navbar-dark-hover-color:           rgba(255,255,255,.75);