diff --git a/docs/4.0/about/brand/index.html b/docs/4.0/about/brand/index.html
index aa2fa5c34c..a3d60aedec 100644
--- a/docs/4.0/about/brand/index.html
+++ b/docs/4.0/about/brand/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/about/history/index.html b/docs/4.0/about/history/index.html
index b653bfa046..08505f8c48 100644
--- a/docs/4.0/about/history/index.html
+++ b/docs/4.0/about/history/index.html
@@ -75,7 +75,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap">
     <svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 
diff --git a/docs/4.0/about/license/index.html b/docs/4.0/about/license/index.html
index d44388c971..f1c02c77fc 100644
--- a/docs/4.0/about/license/index.html
+++ b/docs/4.0/about/license/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/about/overview/index.html b/docs/4.0/about/overview/index.html
index 6bd68d5278..0846097992 100644
--- a/docs/4.0/about/overview/index.html
+++ b/docs/4.0/about/overview/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/about/team/index.html b/docs/4.0/about/team/index.html
index b3cf9d8ccd..e3e41120f1 100644
--- a/docs/4.0/about/team/index.html
+++ b/docs/4.0/about/team/index.html
@@ -75,7 +75,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap">
     <svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 
diff --git a/docs/4.0/about/translations/index.html b/docs/4.0/about/translations/index.html
index f2869f5d4f..267dfca14e 100644
--- a/docs/4.0/about/translations/index.html
+++ b/docs/4.0/about/translations/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
@@ -378,7 +380,7 @@
 
         </div>
 
-        
+
 
         <main class="col-12 col-md-9 col-xl-8 py-md-3 pl-md-5 bd-content" role="main">
           <h1 class="bd-title" id="content">Translations</h1>
diff --git a/docs/4.0/assets/css/docs.min.css b/docs/4.0/assets/css/docs.min.css
index ea39b8636d..e3bc5cd1c8 100644
--- a/docs/4.0/assets/css/docs.min.css
+++ b/docs/4.0/assets/css/docs.min.css
@@ -5,4 +5,5 @@
  * Licensed under the Creative Commons Attribution 3.0 Unported License. For
  * details, see https://creativecommons.org/licenses/by/3.0/.
  */.bd-navbar{min-height:4rem;background-color:#563d7c;box-shadow:0 .5rem 1rem rgba(0,0,0,.05),inset 0 -1px 0 rgba(0,0,0,.1)}@media (max-width:991.98px){.bd-navbar{padding-right:.5rem;padding-left:.5rem}.bd-navbar .navbar-nav-scroll{max-width:100%;height:2.5rem;margin-top:.25rem;overflow:hidden;font-size:.875rem}.bd-navbar .navbar-nav-scroll .navbar-nav{padding-bottom:2rem;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}}@media (min-width:768px){@supports ((position:-webkit-sticky) or (position:sticky)){.bd-navbar{position:-webkit-sticky;position:sticky;top:0;z-index:1071}}}.bd-navbar .navbar-nav .nav-link{padding-right:.5rem;padding-left:.5rem;color:#cbbde2}.bd-navbar .navbar-nav .nav-link.active,.bd-navbar .navbar-nav .nav-link:hover{color:#fff;background-color:transparent}.bd-navbar .navbar-nav .nav-link.active{font-weight:500}.bd-navbar .navbar-nav-svg{display:inline-block;width:1rem;height:1rem;vertical-align:text-top}.bd-navbar .dropdown-menu{font-size:.875rem}.bd-navbar .dropdown-item.active{font-weight:500;color:#212529;background-color:transparent;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='%23292b2c' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:.4rem .6rem;background-size:.75rem .75rem}.bd-masthead{position:relative;padding:3rem 15px}.bd-masthead h1{line-height:1}.bd-masthead .btn{width:100%;padding:.8rem 2rem;font-size:1.25rem;font-weight:500}.bd-masthead .carbonad{margin-top:0!important;margin-bottom:-3rem!important}@media (min-width:576px){.bd-masthead{padding-top:5rem;padding-bottom:5rem}.bd-masthead .carbonad{margin-bottom:0!important}}@media (min-width:768px){.bd-masthead h1{font-size:4rem}.bd-masthead .carbonad{margin-top:3rem!important}}.half-rule{width:6rem;margin:2.5rem 0}.masthead-followup .bd-clipboard{display:none}.masthead-followup .highlight{padding:.5rem 0;background-color:transparent}#carbonads{position:static;display:block;max-width:400px;padding:15px 15px 15px 160px;margin:2rem 0;overflow:hidden;font-size:13px;line-height:1.4;text-align:left;background-color:rgba(0,0,0,.05)}#carbonads a{color:#333;text-decoration:none}@media (min-width:576px){#carbonads{max-width:330px;border-radius:4px}}.carbon-img{float:left;margin-left:-145px}.carbon-poweredby{display:block;color:#777!important}.bd-content{-webkit-box-ordinal-group:2;-ms-flex-order:1;order:1}.bd-content>h2[id],.bd-content>h3[id],.bd-content>h4[id]{pointer-events:none}.bd-content>h2[id]>a,.bd-content>h2[id]>div,.bd-content>h3[id]>a,.bd-content>h3[id]>div,.bd-content>h4[id]>a,.bd-content>h4[id]>div{pointer-events:auto}.bd-content>h2[id]::before,.bd-content>h3[id]::before,.bd-content>h4[id]::before{display:block;height:6rem;margin-top:-6rem;visibility:hidden;content:""}.bd-content>table{width:100%;max-width:100%;margin-bottom:1rem}@media (max-width:991.98px){.bd-content>table{display:block;overflow-x:auto;-ms-overflow-style:-ms-autohiding-scrollbar}.bd-content>table.table-bordered{border:0}}.bd-content>table>tbody>tr>td,.bd-content>table>tbody>tr>th,.bd-content>table>tfoot>tr>td,.bd-content>table>tfoot>tr>th,.bd-content>table>thead>tr>td,.bd-content>table>thead>tr>th{padding:.75rem;vertical-align:top;border:1px solid #dee2e6}.bd-content>table>tbody>tr>td>p:last-child,.bd-content>table>tbody>tr>th>p:last-child,.bd-content>table>tfoot>tr>td>p:last-child,.bd-content>table>tfoot>tr>th>p:last-child,.bd-content>table>thead>tr>td>p:last-child,.bd-content>table>thead>tr>th>p:last-child{margin-bottom:0}.bd-content>table td:first-child>code{white-space:nowrap}.bd-content>h2:not(:first-child){margin-top:3rem}.bd-content>h3{margin-top:1.5rem}.bd-content>ol li,.bd-content>ul li{margin-bottom:.25rem}@media (min-width:992px){.bd-content>ol,.bd-content>p,.bd-content>ul{max-width:80%}}.bd-title{margin-top:1rem;margin-bottom:.5rem;font-weight:300}@media (min-width:576px){.bd-title{font-size:3rem}}.bd-lead{font-size:1.125rem;font-weight:300}@media (min-width:576px){.bd-lead{max-width:80%;margin-bottom:1rem;font-size:1.5rem}}.bd-text-purple{color:#563d7c}.bd-text-purple-bright{color:#7952b3}#skippy{display:block;padding:1em;color:#fff;background-color:#563d7c;outline:0}#skippy .skiplink-text{padding:.5em;outline:1px dotted}.bd-toc{-webkit-box-ordinal-group:3;-ms-flex-order:2;order:2;padding-top:1.5rem;padding-bottom:1.5rem;font-size:.875rem}@supports ((position:-webkit-sticky) or (position:sticky)){.bd-toc{position:-webkit-sticky;position:sticky;top:4rem;height:calc(100vh - 4rem);overflow-y:auto}}.section-nav{padding-left:0;border-left:1px solid #eee}.section-nav ul{padding-left:1rem}.section-nav ul ul{display:none}.toc-entry{display:block}.toc-entry a{display:block;padding:.125rem 1.5rem;color:#99979c}.toc-entry a:hover{color:#007bff;text-decoration:none}.bd-sidebar{-webkit-box-ordinal-group:1;-ms-flex-order:0;order:0;border-bottom:1px solid rgba(0,0,0,.1)}@media (min-width:768px){.bd-sidebar{border-right:1px solid rgba(0,0,0,.1)}@supports ((position:-webkit-sticky) or (position:sticky)){.bd-sidebar{position:-webkit-sticky;position:sticky;top:4rem;z-index:1000;height:calc(100vh - 4rem)}}}@media (min-width:1200px){.bd-sidebar{-webkit-box-flex:0;-ms-flex:0 1 320px;flex:0 1 320px}}.bd-links{padding-top:1rem;padding-bottom:1rem;margin-right:-15px;margin-left:-15px}@media (min-width:768px){@supports ((position:-webkit-sticky) or (position:sticky)){.bd-links{max-height:calc(100vh - 9rem);overflow-y:auto}}}@media (min-width:768px){.bd-links{display:block!important}}.bd-search{position:relative;padding:1rem 15px;margin-right:-15px;margin-left:-15px;border-bottom:1px solid rgba(0,0,0,.05)}.bd-search .form-control:focus{border-color:#7952b3;box-shadow:0 0 0 3px rgba(121,82,179,.25)}.bd-search-docs-toggle{line-height:1;color:#212529}.bd-sidenav{display:none}.bd-toc-link{display:block;padding:.25rem 1.5rem;font-weight:500;color:rgba(0,0,0,.65)}.bd-toc-link:hover{color:rgba(0,0,0,.85);text-decoration:none}.bd-toc-item.active{margin-bottom:1rem}.bd-toc-item.active:not(:first-child){margin-top:1rem}.bd-toc-item.active>.bd-toc-link{color:rgba(0,0,0,.85)}.bd-toc-item.active>.bd-toc-link:hover{background-color:transparent}.bd-toc-item.active>.bd-sidenav{display:block}.bd-sidebar .nav>li>a{display:block;padding:.25rem 1.5rem;font-size:90%;color:rgba(0,0,0,.65)}.bd-sidebar .nav>li>a:hover{color:rgba(0,0,0,.85);text-decoration:none;background-color:transparent}.bd-sidebar .nav>.active:hover>a,.bd-sidebar .nav>.active>a{font-weight:500;color:rgba(0,0,0,.85);background-color:transparent}.bd-footer{font-size:85%;text-align:center;background-color:#f7f7f7}.bd-footer a{font-weight:500;color:#495057}.bd-footer a:focus,.bd-footer 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+ .old-bv{font-size:14px;}.old-bv:hover{text-decoration: none;}
+/*# sourceMappingURL=docs.min.css.map */
diff --git a/docs/4.0/browser-bugs/index.html b/docs/4.0/browser-bugs/index.html
index 79782dd92c..4726c644b4 100644
--- a/docs/4.0/browser-bugs/index.html
+++ b/docs/4.0/browser-bugs/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/alerts/index.html b/docs/4.0/components/alerts/index.html
index b263b547f0..9b24a66423 100644
--- a/docs/4.0/components/alerts/index.html
+++ b/docs/4.0/components/alerts/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/badge/index.html b/docs/4.0/components/badge/index.html
index 58a4aa6904..23751f50b7 100644
--- a/docs/4.0/components/badge/index.html
+++ b/docs/4.0/components/badge/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/breadcrumb/index.html b/docs/4.0/components/breadcrumb/index.html
index ffa9b30761..75f269ae1d 100644
--- a/docs/4.0/components/breadcrumb/index.html
+++ b/docs/4.0/components/breadcrumb/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/button-group/index.html b/docs/4.0/components/button-group/index.html
index f0c55bce96..b46f15bb04 100644
--- a/docs/4.0/components/button-group/index.html
+++ b/docs/4.0/components/button-group/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/buttons/index.html b/docs/4.0/components/buttons/index.html
index 809f2b7bd8..214694b64d 100644
--- a/docs/4.0/components/buttons/index.html
+++ b/docs/4.0/components/buttons/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/card/index.html b/docs/4.0/components/card/index.html
index dca9be027e..5e8a17f3fa 100644
--- a/docs/4.0/components/card/index.html
+++ b/docs/4.0/components/card/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/carousel/index.html b/docs/4.0/components/carousel/index.html
index 4256cd7627..cea7e2e545 100644
--- a/docs/4.0/components/carousel/index.html
+++ b/docs/4.0/components/carousel/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/collapse/index.html b/docs/4.0/components/collapse/index.html
index 1167486543..871e09e467 100644
--- a/docs/4.0/components/collapse/index.html
+++ b/docs/4.0/components/collapse/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/dropdowns/index.html b/docs/4.0/components/dropdowns/index.html
index b83f7fdaff..886f3eff8a 100644
--- a/docs/4.0/components/dropdowns/index.html
+++ b/docs/4.0/components/dropdowns/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/forms/index.html b/docs/4.0/components/forms/index.html
index acef0cfdff..fb494c3bd7 100644
--- a/docs/4.0/components/forms/index.html
+++ b/docs/4.0/components/forms/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/input-group/index.html b/docs/4.0/components/input-group/index.html
index c5b0613af1..9b31e7fb62 100644
--- a/docs/4.0/components/input-group/index.html
+++ b/docs/4.0/components/input-group/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/jumbotron/index.html b/docs/4.0/components/jumbotron/index.html
index 5ee8a86d78..8dc0f06572 100644
--- a/docs/4.0/components/jumbotron/index.html
+++ b/docs/4.0/components/jumbotron/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/list-group/index.html b/docs/4.0/components/list-group/index.html
index 633c4ca94a..ca3e5fc305 100644
--- a/docs/4.0/components/list-group/index.html
+++ b/docs/4.0/components/list-group/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/modal/index.html b/docs/4.0/components/modal/index.html
index 193cf5a1b1..73492541ec 100644
--- a/docs/4.0/components/modal/index.html
+++ b/docs/4.0/components/modal/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/navbar/index.html b/docs/4.0/components/navbar/index.html
index f5b55db48f..c9d6ff61ef 100644
--- a/docs/4.0/components/navbar/index.html
+++ b/docs/4.0/components/navbar/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/navs/index.html b/docs/4.0/components/navs/index.html
index 8fcb2bba09..d7a9df5f52 100644
--- a/docs/4.0/components/navs/index.html
+++ b/docs/4.0/components/navs/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/pagination/index.html b/docs/4.0/components/pagination/index.html
index daaa824f66..0343499b30 100644
--- a/docs/4.0/components/pagination/index.html
+++ b/docs/4.0/components/pagination/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/popovers/index.html b/docs/4.0/components/popovers/index.html
index cd09aadbc4..b9d18c8403 100644
--- a/docs/4.0/components/popovers/index.html
+++ b/docs/4.0/components/popovers/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/progress/index.html b/docs/4.0/components/progress/index.html
index 50679e86d1..2bfb848106 100644
--- a/docs/4.0/components/progress/index.html
+++ b/docs/4.0/components/progress/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/scrollspy/index.html b/docs/4.0/components/scrollspy/index.html
index 81d34db90d..397e056f41 100644
--- a/docs/4.0/components/scrollspy/index.html
+++ b/docs/4.0/components/scrollspy/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/components/tooltips/index.html b/docs/4.0/components/tooltips/index.html
index 444914f889..d97f356bdc 100644
--- a/docs/4.0/components/tooltips/index.html
+++ b/docs/4.0/components/tooltips/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/content/code/index.html b/docs/4.0/content/code/index.html
index d8df640d2f..19ec024c43 100644
--- a/docs/4.0/content/code/index.html
+++ b/docs/4.0/content/code/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/content/figures/index.html b/docs/4.0/content/figures/index.html
index f48b0ee626..059bf76777 100644
--- a/docs/4.0/content/figures/index.html
+++ b/docs/4.0/content/figures/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/content/images/index.html b/docs/4.0/content/images/index.html
index 2c8cb6cedf..e3dcc04295 100644
--- a/docs/4.0/content/images/index.html
+++ b/docs/4.0/content/images/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/content/reboot/index.html b/docs/4.0/content/reboot/index.html
index 6c4bc9ff0d..82441d0a22 100644
--- a/docs/4.0/content/reboot/index.html
+++ b/docs/4.0/content/reboot/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/content/tables/index.html b/docs/4.0/content/tables/index.html
index 0f2997e5cb..ed7071930c 100644
--- a/docs/4.0/content/tables/index.html
+++ b/docs/4.0/content/tables/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/content/typography/index.html b/docs/4.0/content/typography/index.html
index 202de3b885..d75a9f1bf3 100644
--- a/docs/4.0/content/typography/index.html
+++ b/docs/4.0/content/typography/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/examples/index.html b/docs/4.0/examples/index.html
index b586599176..72108a542c 100644
--- a/docs/4.0/examples/index.html
+++ b/docs/4.0/examples/index.html
@@ -66,7 +66,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/extend/approach/index.html b/docs/4.0/extend/approach/index.html
index a12128a94a..11c4d0be83 100644
--- a/docs/4.0/extend/approach/index.html
+++ b/docs/4.0/extend/approach/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/extend/icons/index.html b/docs/4.0/extend/icons/index.html
index e5e813bef4..3612d6f5af 100644
--- a/docs/4.0/extend/icons/index.html
+++ b/docs/4.0/extend/icons/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/extend/index.html b/docs/4.0/extend/index.html
index 1c27c70a7e..ef04342a4a 100644
--- a/docs/4.0/extend/index.html
+++ b/docs/4.0/extend/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/accessibility/index.html b/docs/4.0/getting-started/accessibility/index.html
index 185c7231ba..e0d99d36e1 100644
--- a/docs/4.0/getting-started/accessibility/index.html
+++ b/docs/4.0/getting-started/accessibility/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/best-practices/index.html b/docs/4.0/getting-started/best-practices/index.html
index 53f172af7d..981c27c0f9 100644
--- a/docs/4.0/getting-started/best-practices/index.html
+++ b/docs/4.0/getting-started/best-practices/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/browsers-devices/index.html b/docs/4.0/getting-started/browsers-devices/index.html
index ac44d40b6a..080705d6c4 100644
--- a/docs/4.0/getting-started/browsers-devices/index.html
+++ b/docs/4.0/getting-started/browsers-devices/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/build-tools/index.html b/docs/4.0/getting-started/build-tools/index.html
index 9ada61483c..e5d0a91bad 100644
--- a/docs/4.0/getting-started/build-tools/index.html
+++ b/docs/4.0/getting-started/build-tools/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/contents/index.html b/docs/4.0/getting-started/contents/index.html
index c60e7dc7c9..7a1e667c9a 100644
--- a/docs/4.0/getting-started/contents/index.html
+++ b/docs/4.0/getting-started/contents/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/download/index.html b/docs/4.0/getting-started/download/index.html
index 7df5017569..3041b7d673 100644
--- a/docs/4.0/getting-started/download/index.html
+++ b/docs/4.0/getting-started/download/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/introduction/index.html b/docs/4.0/getting-started/introduction/index.html
index 31d0a2b53b..e5d2331c00 100644
--- a/docs/4.0/getting-started/introduction/index.html
+++ b/docs/4.0/getting-started/introduction/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/javascript/index.html b/docs/4.0/getting-started/javascript/index.html
index d2efef7ca3..5d325ec1ea 100644
--- a/docs/4.0/getting-started/javascript/index.html
+++ b/docs/4.0/getting-started/javascript/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/theming/index.html b/docs/4.0/getting-started/theming/index.html
index ac684991a2..b196a85650 100644
--- a/docs/4.0/getting-started/theming/index.html
+++ b/docs/4.0/getting-started/theming/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/getting-started/webpack/index.html b/docs/4.0/getting-started/webpack/index.html
index 1e03462cc3..d6f01a952d 100644
--- a/docs/4.0/getting-started/webpack/index.html
+++ b/docs/4.0/getting-started/webpack/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/layout/grid/index.html b/docs/4.0/layout/grid/index.html
index a1d3279c9a..1ea5bcb18f 100644
--- a/docs/4.0/layout/grid/index.html
+++ b/docs/4.0/layout/grid/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/layout/media-object/index.html b/docs/4.0/layout/media-object/index.html
index b8aad28427..a920fe45ec 100644
--- a/docs/4.0/layout/media-object/index.html
+++ b/docs/4.0/layout/media-object/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/layout/overview/index.html b/docs/4.0/layout/overview/index.html
index 18a3c3361a..bb9c603499 100644
--- a/docs/4.0/layout/overview/index.html
+++ b/docs/4.0/layout/overview/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/layout/utilities-for-layout/index.html b/docs/4.0/layout/utilities-for-layout/index.html
index ef2bea3969..fcb897084b 100644
--- a/docs/4.0/layout/utilities-for-layout/index.html
+++ b/docs/4.0/layout/utilities-for-layout/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
@@ -378,7 +380,7 @@
 
         </div>
 
-        
+
           <div class="d-none d-xl-block col-xl-2 bd-toc">
             <ul class="section-nav">
 <li class="toc-entry toc-h2"><a href="#changing-display">Changing display</a></li>
@@ -387,7 +389,7 @@
 <li class="toc-entry toc-h2"><a href="#toggle-visibility">Toggle visibility</a></li>
 </ul>
           </div>
-        
+
 
         <main class="col-12 col-md-9 col-xl-8 py-md-3 pl-md-5 bd-content" role="main">
           <h1 class="bd-title" id="content">Utilities for layout</h1>
diff --git a/docs/4.0/migration/index.html b/docs/4.0/migration/index.html
index 4078551468..625230d13b 100644
--- a/docs/4.0/migration/index.html
+++ b/docs/4.0/migration/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/borders/index.html b/docs/4.0/utilities/borders/index.html
index 7022f0d088..a659d599e7 100644
--- a/docs/4.0/utilities/borders/index.html
+++ b/docs/4.0/utilities/borders/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/clearfix/index.html b/docs/4.0/utilities/clearfix/index.html
index 5336f61074..5344d94c84 100644
--- a/docs/4.0/utilities/clearfix/index.html
+++ b/docs/4.0/utilities/clearfix/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/close-icon/index.html b/docs/4.0/utilities/close-icon/index.html
index 818cfbc3a7..206c69875d 100644
--- a/docs/4.0/utilities/close-icon/index.html
+++ b/docs/4.0/utilities/close-icon/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/colors/index.html b/docs/4.0/utilities/colors/index.html
index d206f62976..ba97d1b56e 100644
--- a/docs/4.0/utilities/colors/index.html
+++ b/docs/4.0/utilities/colors/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/display/index.html b/docs/4.0/utilities/display/index.html
index afab541435..6d94c23237 100644
--- a/docs/4.0/utilities/display/index.html
+++ b/docs/4.0/utilities/display/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/embed/index.html b/docs/4.0/utilities/embed/index.html
index dfcf5a0efb..841c9d31f2 100644
--- a/docs/4.0/utilities/embed/index.html
+++ b/docs/4.0/utilities/embed/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/flex/index.html b/docs/4.0/utilities/flex/index.html
index 21106b0f5d..1a8401235e 100644
--- a/docs/4.0/utilities/flex/index.html
+++ b/docs/4.0/utilities/flex/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/float/index.html b/docs/4.0/utilities/float/index.html
index 66ec765f83..b2834e30df 100644
--- a/docs/4.0/utilities/float/index.html
+++ b/docs/4.0/utilities/float/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/image-replacement/index.html b/docs/4.0/utilities/image-replacement/index.html
index 8e8591b6e8..3add5bea25 100644
--- a/docs/4.0/utilities/image-replacement/index.html
+++ b/docs/4.0/utilities/image-replacement/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/position/index.html b/docs/4.0/utilities/position/index.html
index 0e95ba8e94..b46050d095 100644
--- a/docs/4.0/utilities/position/index.html
+++ b/docs/4.0/utilities/position/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/screenreaders/index.html b/docs/4.0/utilities/screenreaders/index.html
index 9573dc5cff..9fc980c214 100644
--- a/docs/4.0/utilities/screenreaders/index.html
+++ b/docs/4.0/utilities/screenreaders/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/sizing/index.html b/docs/4.0/utilities/sizing/index.html
index b807f5ca0c..8775ecbb46 100644
--- a/docs/4.0/utilities/sizing/index.html
+++ b/docs/4.0/utilities/sizing/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/spacing/index.html b/docs/4.0/utilities/spacing/index.html
index 66bd582975..fb41dbc139 100644
--- a/docs/4.0/utilities/spacing/index.html
+++ b/docs/4.0/utilities/spacing/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/text/index.html b/docs/4.0/utilities/text/index.html
index 6d3b57d04e..53961152c2 100644
--- a/docs/4.0/utilities/text/index.html
+++ b/docs/4.0/utilities/text/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/vertical-align/index.html b/docs/4.0/utilities/vertical-align/index.html
index 41968e7a37..f484e1f0b4 100644
--- a/docs/4.0/utilities/vertical-align/index.html
+++ b/docs/4.0/utilities/vertical-align/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>
 
diff --git a/docs/4.0/utilities/visibility/index.html b/docs/4.0/utilities/visibility/index.html
index f2f5b763f4..4e00800da9 100644
--- a/docs/4.0/utilities/visibility/index.html
+++ b/docs/4.0/utilities/visibility/index.html
@@ -68,7 +68,9 @@
       </div>
     </a>
 
-    <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
+    <a href="https://getbootstrap.com" class="d-block px-3 py-2 text-center text-bold text-white bg-dark old-bv">There's a newer version of Bootstrap 4!</a>
+
+<header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="/" aria-label="Bootstrap"><svg class="d-block" width="36" height="36" viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
 </a>