diff --git a/LICENSE b/LICENSE
index 86f4b8ca0..7d1e2311f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,7 +1,7 @@
 The MIT License (MIT)
 
-Copyright (c) 2011-2018 Twitter, Inc.
-Copyright (c) 2011-2018 The Bootstrap Authors
+Copyright (c) 2011-2019 Twitter, Inc.
+Copyright (c) 2011-2019 The Bootstrap Authors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index a264a3f5e..cd1d3dabb 100644
--- a/README.md
+++ b/README.md
@@ -210,4 +210,4 @@ Support this project by becoming a sponsor. Your logo will show up here with a l
 
 ## Copyright and license
 
-Code and documentation copyright 2011-2018 the [Bootstrap Authors](https://github.com/twbs/bootstrap/graphs/contributors) and [Twitter, Inc.](https://twitter.com) Code released under the [MIT License](https://github.com/twbs/bootstrap/blob/master/LICENSE). Docs released under [Creative Commons](https://github.com/twbs/bootstrap/blob/master/docs/LICENSE).
+Code and documentation copyright 2011-2019 the [Bootstrap Authors](https://github.com/twbs/bootstrap/graphs/contributors) and [Twitter, Inc.](https://twitter.com) Code released under the [MIT License](https://github.com/twbs/bootstrap/blob/master/LICENSE). Docs released under [Creative Commons](https://github.com/twbs/bootstrap/blob/master/docs/LICENSE).
diff --git a/build/build-plugins.js b/build/build-plugins.js
index 3240ee5d0..abcbc5e2f 100644
--- a/build/build-plugins.js
+++ b/build/build-plugins.js
@@ -1,7 +1,7 @@
 /*!
  * Script to build our plugins to use them separately.
- * Copyright 2018 The Bootstrap Authors
- * Copyright 2018 Twitter, Inc.
+ * Copyright 2019 The Bootstrap Authors
+ * Copyright 2019 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/build/change-version.js b/build/change-version.js
index 7102dc083..f1b4f747a 100755
--- a/build/change-version.js
+++ b/build/change-version.js
@@ -2,8 +2,8 @@
 
 /*!
  * Script to update version number references in the project.
- * Copyright 2017-2018 The Bootstrap Authors
- * Copyright 2017-2018 Twitter, Inc.
+ * Copyright 2017-2019 The Bootstrap Authors
+ * Copyright 2017-2019 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/build/generate-sri.js b/build/generate-sri.js
index 309f29bd2..b32b20214 100644
--- a/build/generate-sri.js
+++ b/build/generate-sri.js
@@ -5,8 +5,8 @@
  * Remember to use the same vendor files as the CDN ones,
  * otherwise the hashes won't match!
  *
- * Copyright 2017-2018 The Bootstrap Authors
- * Copyright 2017-2018 Twitter, Inc.
+ * Copyright 2017-2019 The Bootstrap Authors
+ * Copyright 2017-2019 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/build/vnu-jar.js b/build/vnu-jar.js
index b990ba7b7..7d549cb01 100644
--- a/build/vnu-jar.js
+++ b/build/vnu-jar.js
@@ -2,8 +2,8 @@
 
 /*!
  * Script to run vnu-jar if Java is available.
- * Copyright 2017-2018 The Bootstrap Authors
- * Copyright 2017-2018 Twitter, Inc.
+ * Copyright 2017-2019 The Bootstrap Authors
+ * Copyright 2017-2019 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/nuget/bootstrap.nuspec b/nuget/bootstrap.nuspec
index 7f31af1a8..0770f0f65 100644
--- a/nuget/bootstrap.nuspec
+++ b/nuget/bootstrap.nuspec
@@ -13,7 +13,7 @@
     <projectUrl>https://getbootstrap.com/</projectUrl>
     <iconUrl>https://getbootstrap.com/docs/4.2/assets/img/favicons/apple-touch-icon.png</iconUrl>
     <license type="file">LICENSE.txt</license>
-    <copyright>Copyright 2017-2018</copyright>
+    <copyright>Copyright 2017-2019</copyright>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <dependencies>
       <dependency id="jQuery" version="[3.0.0,4)" />
diff --git a/nuget/bootstrap.sass.nuspec b/nuget/bootstrap.sass.nuspec
index 1793d58bf..fbd57d4e4 100644
--- a/nuget/bootstrap.sass.nuspec
+++ b/nuget/bootstrap.sass.nuspec
@@ -13,7 +13,7 @@
     <projectUrl>https://getbootstrap.com/</projectUrl>
     <iconUrl>https://getbootstrap.com/docs/4.2/assets/img/favicons/apple-touch-icon.png</iconUrl>
     <license type="file">LICENSE.txt</license>
-    <copyright>Copyright 2017-2018</copyright>
+    <copyright>Copyright 2017-2019</copyright>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <dependencies>
       <dependency id="jQuery" version="[3.0.0,4)" />
diff --git a/scss/bootstrap-grid.scss b/scss/bootstrap-grid.scss
index 9b3e77cb4..01b03db39 100644
--- a/scss/bootstrap-grid.scss
+++ b/scss/bootstrap-grid.scss
@@ -1,7 +1,7 @@
 /*!
  * Bootstrap Grid v4.2.1 (https://getbootstrap.com/)
- * Copyright 2011-2018 The Bootstrap Authors
- * Copyright 2011-2018 Twitter, Inc.
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/scss/bootstrap-reboot.scss b/scss/bootstrap-reboot.scss
index 717417810..1b39a7d4c 100644
--- a/scss/bootstrap-reboot.scss
+++ b/scss/bootstrap-reboot.scss
@@ -1,7 +1,7 @@
 /*!
  * Bootstrap Reboot v4.2.1 (https://getbootstrap.com/)
- * Copyright 2011-2018 The Bootstrap Authors
- * Copyright 2011-2018 Twitter, Inc.
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
  */
diff --git a/scss/bootstrap.scss b/scss/bootstrap.scss
index 44b04b293..88e180e57 100644
--- a/scss/bootstrap.scss
+++ b/scss/bootstrap.scss
@@ -1,7 +1,7 @@
 /*!
  * Bootstrap v4.2.1 (https://getbootstrap.com/)
- * Copyright 2011-2018 The Bootstrap Authors
- * Copyright 2011-2018 Twitter, Inc.
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 
diff --git a/site/docs/4.2/assets/js/src/application.js b/site/docs/4.2/assets/js/src/application.js
index 8bd9e7877..0deb862ee 100644
--- a/site/docs/4.2/assets/js/src/application.js
+++ b/site/docs/4.2/assets/js/src/application.js
@@ -4,8 +4,8 @@
 
 /*!
  * JavaScript for Bootstrap's docs (https://getbootstrap.com/)
- * Copyright 2011-2018 The Bootstrap Authors
- * Copyright 2011-2018 Twitter, Inc.
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
  * Licensed under the Creative Commons Attribution 3.0 Unported License. For
  * details, see https://creativecommons.org/licenses/by/3.0/.
  */
diff --git a/site/docs/4.2/assets/scss/docs.scss b/site/docs/4.2/assets/scss/docs.scss
index 4b6674ad0..267cb562b 100644
--- a/site/docs/4.2/assets/scss/docs.scss
+++ b/site/docs/4.2/assets/scss/docs.scss
@@ -1,7 +1,7 @@
 /*!
  * Bootstrap Docs (https://getbootstrap.com/)
- * Copyright 2011-2018 The Bootstrap Authors
- * Copyright 2011-2018 Twitter, Inc.
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
  * Licensed under the Creative Commons Attribution 3.0 Unported License. For
  * details, see https://creativecommons.org/licenses/by/3.0/.
  */
diff --git a/site/docs/4.2/examples/carousel/index.html b/site/docs/4.2/examples/carousel/index.html
index 2cbf929ac..1a8fd67e3 100644
--- a/site/docs/4.2/examples/carousel/index.html
+++ b/site/docs/4.2/examples/carousel/index.html
@@ -158,6 +158,6 @@ extra_css: "carousel.css"
   <!-- FOOTER -->
   <footer class="container">
     <p class="float-right"><a href="#">Back to top</a></p>
-    <p>&copy; 2017-2018 Company, Inc. &middot; <a href="#">Privacy</a> &middot; <a href="#">Terms</a></p>
+    <p>&copy; 2017-2019 Company, Inc. &middot; <a href="#">Privacy</a> &middot; <a href="#">Terms</a></p>
   </footer>
 </main>
diff --git a/site/docs/4.2/examples/checkout/index.html b/site/docs/4.2/examples/checkout/index.html
index 0af951214..5d7b57222 100644
--- a/site/docs/4.2/examples/checkout/index.html
+++ b/site/docs/4.2/examples/checkout/index.html
@@ -213,7 +213,7 @@ body_class: "bg-light"
   </div>
 
   <footer class="my-5 pt-5 text-muted text-center text-small">
-    <p class="mb-1">&copy; 2017-2018 Company Name</p>
+    <p class="mb-1">&copy; 2017-2019 Company Name</p>
     <ul class="list-inline">
       <li class="list-inline-item"><a href="#">Privacy</a></li>
       <li class="list-inline-item"><a href="#">Terms</a></li>
diff --git a/site/docs/4.2/examples/floating-labels/index.html b/site/docs/4.2/examples/floating-labels/index.html
index 9f1d8131d..1f5f65494 100644
--- a/site/docs/4.2/examples/floating-labels/index.html
+++ b/site/docs/4.2/examples/floating-labels/index.html
@@ -28,5 +28,5 @@ include_js: false
     </label>
   </div>
   <button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
-  <p class="mt-5 mb-3 text-muted text-center">&copy; 2017-2018</p>
+  <p class="mt-5 mb-3 text-muted text-center">&copy; 2017-2019</p>
 </form>
diff --git a/site/docs/4.2/examples/jumbotron/index.html b/site/docs/4.2/examples/jumbotron/index.html
index 7d5c496db..a5f54d8e8 100644
--- a/site/docs/4.2/examples/jumbotron/index.html
+++ b/site/docs/4.2/examples/jumbotron/index.html
@@ -75,5 +75,5 @@ extra_css: "jumbotron.css"
 </main>
 
 <footer class="container">
-  <p>&copy; Company 2017-2018</p>
+  <p>&copy; Company 2017-2019</p>
 </footer>
diff --git a/site/docs/4.2/examples/pricing/index.html b/site/docs/4.2/examples/pricing/index.html
index 64660972b..b9fb44988 100644
--- a/site/docs/4.2/examples/pricing/index.html
+++ b/site/docs/4.2/examples/pricing/index.html
@@ -74,7 +74,7 @@ include_js: false
     <div class="row">
       <div class="col-12 col-md">
         <img class="mb-2" src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/brand/bootstrap-solid.svg" alt="" width="24" height="24">
-        <small class="d-block mb-3 text-muted">&copy; 2017-2018</small>
+        <small class="d-block mb-3 text-muted">&copy; 2017-2019</small>
       </div>
       <div class="col-6 col-md">
         <h5>Features</h5>
diff --git a/site/docs/4.2/examples/product/index.html b/site/docs/4.2/examples/product/index.html
index 1961304f1..393d60afa 100644
--- a/site/docs/4.2/examples/product/index.html
+++ b/site/docs/4.2/examples/product/index.html
@@ -101,7 +101,7 @@ extra_css: "product.css"
   <div class="row">
     <div class="col-12 col-md">
       <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="d-block mb-2" focusable="false" role="img"><title>Product</title><circle cx="12" cy="12" r="10"></circle><line x1="14.31" y1="8" x2="20.05" y2="17.94"></line><line x1="9.69" y1="8" x2="21.17" y2="8"></line><line x1="7.38" y1="12" x2="13.12" y2="2.06"></line><line x1="9.69" y1="16" x2="3.95" y2="6.06"></line><line x1="14.31" y1="16" x2="2.83" y2="16"></line><line x1="16.62" y1="12" x2="10.88" y2="21.94"></line></svg>
-      <small class="d-block mb-3 text-muted">&copy; 2017-2018</small>
+      <small class="d-block mb-3 text-muted">&copy; 2017-2019</small>
     </div>
     <div class="col-6 col-md">
       <h5>Features</h5>
diff --git a/site/docs/4.2/examples/sign-in/index.html b/site/docs/4.2/examples/sign-in/index.html
index be03ad705..931ba50c8 100644
--- a/site/docs/4.2/examples/sign-in/index.html
+++ b/site/docs/4.2/examples/sign-in/index.html
@@ -19,5 +19,5 @@ include_js: false
     </label>
   </div>
   <button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
-  <p class="mt-5 mb-3 text-muted">&copy; 2017-2018</p>
+  <p class="mt-5 mb-3 text-muted">&copy; 2017-2019</p>
 </form>