diff --git a/dist/css/bootstrap.css.map b/dist/css/bootstrap.css.map
index fe36280f83d8a58624a4e779c471ce007baf4510..3c02a03fa9edff0bcce761e98f83e83c65a94534 100644
Binary files a/dist/css/bootstrap.css.map and b/dist/css/bootstrap.css.map differ
diff --git a/docs/dist/css/bootstrap.css.map b/docs/dist/css/bootstrap.css.map
index fe36280f83d8a58624a4e779c471ce007baf4510..3c02a03fa9edff0bcce761e98f83e83c65a94534 100644
Binary files a/docs/dist/css/bootstrap.css.map and b/docs/dist/css/bootstrap.css.map differ
diff --git a/less/navbar.less b/less/navbar.less
index c7bdd36cc4c1d1f24c9d71e0c48b59026008adbe..dbfd7f1a7faa6346ef7174ca9b1de901a96f523c 100644
--- a/less/navbar.less
+++ b/less/navbar.less
@@ -92,7 +92,7 @@
   .navbar-collapse {
     max-height: @navbar-collapse-max-height;
 
-    @media (max-device-width: @screen-xs-min) and (orientation: landscape) {
+    @media (max-device-width: 480px) and (orientation: landscape) {
       max-height: 200px;
     }
   }
diff --git a/less/variables.less b/less/variables.less
index e276a35c6b7033b4dee14d1c37ff3a7e10c3b6d3..4111c45588b764bcde69eb18cd3796a22d4db9d4 100644
--- a/less/variables.less
+++ b/less/variables.less
@@ -261,12 +261,6 @@
 //## Define the breakpoints at which your layout will change, adapting to different screen sizes.
 
 // Extra small screen / phone
-//** Deprecated `@screen-xs` as of v3.0.1
-@screen-xs:                  480px;
-//** Deprecated `@screen-xs-min` as of v3.2.0
-@screen-xs-min:              @screen-xs;
-//** Deprecated `@screen-phone` as of v3.0.1
-@screen-phone:               @screen-xs-min;
 
 // Small screen / tablet
 //** Deprecated `@screen-sm` as of v3.0.1