From a4d4875a9f8739084bbc81b69fefab69ea0a6b4b Mon Sep 17 00:00:00 2001
From: Camila Macedo <camilamacedo86@gmail.com>
Date: Thu, 23 May 2024 20:42:01 +0100
Subject: [PATCH 1/2] Add header to clarify that book-v3 is legacy
 documentation

---
 docs/book/theme/css/custom.css | 27 +++++++++++++++++++++++++++
 docs/book/theme/header.hbs     |  3 +++
 docs/book/theme/index.hbs      |  2 ++
 3 files changed, 32 insertions(+)
 create mode 100644 docs/book/theme/header.hbs

diff --git a/docs/book/theme/css/custom.css b/docs/book/theme/css/custom.css
index 16e3b210e9..a81921b40b 100644
--- a/docs/book/theme/css/custom.css
+++ b/docs/book/theme/css/custom.css
@@ -1,3 +1,30 @@
 .menu-title img {
     vertical-align: bottom;
 }
+
+#notice-bar {
+    background: var(--bg);
+    padding: 1em;
+    margin-left: calc(-1 * var(--page-padding));
+    margin-right: calc(-1 * var(--page-padding));
+    margin-bottom: 1em;
+
+    border-bottom: 1px solid var(--table-border-color);
+    box-shadow: 0 1px 5px 0 var(--table-border-color);
+}
+
+#notice-bar * {
+    color: var(--fg);
+}
+
+#notice-bar a {
+    text-decoration: none;
+}
+
+#notice-bar a:not(.header) {
+    color: var(--links);
+}
+
+#notice-bar h2 {
+    margin-top: 0;
+}
diff --git a/docs/book/theme/header.hbs b/docs/book/theme/header.hbs
new file mode 100644
index 0000000000..67d9db43c4
--- /dev/null
+++ b/docs/book/theme/header.hbs
@@ -0,0 +1,3 @@
+<header id="notice-bar">
+    <h2>Viewing legacy documentation for Kubebuilder, check out the <a href="https://book.kubebuilder.io">latest</a> documentation instead.</h2>
+</header>
diff --git a/docs/book/theme/index.hbs b/docs/book/theme/index.hbs
index e0fd8cd68a..2ef47f1198 100644
--- a/docs/book/theme/index.hbs
+++ b/docs/book/theme/index.hbs
@@ -158,6 +158,8 @@
                     </div>
                 </div>
 
+                {{> header}}
+
                 {{#if search_enabled}}
                 <div id="search-wrapper" class="hidden">
                     <form id="searchbar-outer" class="searchbar-outer">

From b722de5a7d2f28fc0f55cc81e1891f501d63ef37 Mon Sep 17 00:00:00 2001
From: Camila Macedo <camilamacedo86@gmail.com>
Date: Thu, 23 May 2024 20:48:30 +0100
Subject: [PATCH 2/2] Update version dropdown for documentation

---
 docs/book/theme/index.hbs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docs/book/theme/index.hbs b/docs/book/theme/index.hbs
index 2ef47f1198..3eb5649d8b 100644
--- a/docs/book/theme/index.hbs
+++ b/docs/book/theme/index.hbs
@@ -132,7 +132,8 @@
                             <i class="fa fa-book"></i>
                             </button>
                             <div class="version-dropdown-content">
-                                <a href="https://book.kubebuilder.io/"target="_blank" rel="noopener noreferrer">v3-book</a>
+                                <a href="https://book.kubebuilder.io/"target="_blank" rel="noopener noreferrer">latest (V4x)</a>
+                                <a href="https://book-v3.book.kubebuilder.io/"target="_blank" rel="noopener noreferrer">v3-book</a>
                                 <a href="https://book-v2.book.kubebuilder.io/"target="_blank" rel="noopener noreferrer">v2-book</a>
                                 <a href="https://book-v1.book.kubebuilder.io/"target="_blank" rel="noopener noreferrer">v1-book</a>
                             </div>