Revert unrelated version changes.

docs/4.1/about/overview.md

@@ -3,9 +3,9 @@ layout: docs
 title: About
 description: Learn more about the team maintaining Bootstrap, how and why the project started, and how to get involved.
 redirect_from:
-  - "/docs/4.1/about/"
-  - "/docs/4.1/history/"
-  - "/docs/4.1/team/"
+  - "/docs/4.0/about/"
+  - "/docs/4.0/history/"
+  - "/docs/4.0/team/"
 group: about
 ---
 

docs/4.1/components/buttons.md

@@ -3,7 +3,7 @@ layout: docs
 title: Buttons
 description: Use Bootstrap's custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more.
 group: components
-redirect_from: "/docs/4.1/components/"
+redirect_from: "/docs/4.0/components/"
 toc: true
 ---
 

docs/4.1/content/reboot.md

@@ -3,7 +3,7 @@ layout: docs
 title: Reboot
 description: Reboot, a collection of element-specific CSS changes in a single file, kickstart Bootstrap to provide an elegant, consistent, and simple baseline to build upon.
 group: content
-redirect_from: "/docs/4.1/content/"
+redirect_from: "/docs/4.0/content/"
 toc: true
 ---
 

docs/4.1/getting-started/introduction.md

@@ -5,8 +5,8 @@ description: Get started with Bootstrap, the world's most popular framework for
 group: getting-started
 redirect_from:
   - /docs/
-  - /docs/4.1/
-  - /docs/4.1/getting-started/
+  - /docs/4.0/
+  - /docs/4.0/getting-started/
   - /docs/getting-started/
 toc: true
 ---

docs/4.1/getting-started/theming.md

@@ -4,7 +4,7 @@ title: Theming Bootstrap
 description: Customize Bootstrap 4 with our new built-in Sass variables for global style preferences for easy theming and component changes.
 group: getting-started
 toc: true
-redirect_from: "/docs/4.1/getting-started/options/"
+redirect_from: "/docs/4.0/getting-started/options/"
 ---
 
 ## Introduction

docs/4.1/layout/overview.md

@@ -3,7 +3,7 @@ layout: docs
 title: Overview
 description: Components and options for laying out your Bootstrap project, including wrapping containers, a powerful grid system, a flexible media object, and responsive utility classes.
 group: layout
-redirect_from: "/docs/4.1/layout/"
+redirect_from: "/docs/4.0/layout/"
 toc: true
 ---
 

docs/4.1/migration.md

@@ -121,7 +121,7 @@ Here are the big ticket items you'll want to be aware of when moving from v3 to
 
 ## By component
 
-This list highlights key changes by component between v3.x.x and v4.1.0.
+This list highlights key changes by component between v3.x.x and v4.0.0.
 
 ### Reboot
 
@@ -319,7 +319,7 @@ Our documentation received an upgrade across the board as well. Here's the low d
 
 ### Responsive utilities
 
-All `@screen-` variables have been removed in v4.1.0. Use the `media-breakpoint-up()`, `media-breakpoint-down()`, or `media-breakpoint-only()` Sass mixins or the `$grid-breakpoints` Sass map instead.
+All `@screen-` variables have been removed in v4.0.0. Use the `media-breakpoint-up()`, `media-breakpoint-down()`, or `media-breakpoint-only()` Sass mixins or the `$grid-breakpoints` Sass map instead.
 
 Our responsive utility classes have largely been removed in favor of explicit `display` utilities.
 

docs/4.1/utilities/borders.md

@@ -3,7 +3,7 @@ layout: docs
 title: Borders
 description: Use border utilities to quickly style the border and border-radius of an element. Great for images, buttons, or any other element.
 group: utilities
-redirect_from: "/docs/4.1/utilities/"
+redirect_from: "/docs/4.0/utilities/"
 toc: true
 ---
 

js/src/index.js

@@ -31,7 +31,7 @@ import Util from './util'
   const maxMajor = 4
 
   if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
-    throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.1.0')
+    throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0')
   }
 })($)