Second edition is now the definitive edition

first-edition/book.toml

@@ -1,3 +1,6 @@
 [book]
 title = "The Rust Programming Language"
 author = "The Rust Project Developers"
+
+[output.html]
+additional-css = ["src/theme/first-edition.css"]

first-edition/src/theme/first-edition.css

@@ -0,0 +1,56 @@
+.warning {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    background-color: rgb(242, 222, 222);
+    border-bottom-color: rgb(238, 211, 215);
+    border-bottom-left-radius: 4px;
+    border-bottom-right-radius: 4px;
+    border-bottom-style: solid;
+    border-bottom-width: 0.666667px;
+    border-image-outset: 0 0 0 0;
+    border-image-repeat: stretch stretch;
+    border-image-slice: 100% 100% 100% 100%;
+    border-image-source: none;
+    border-image-width: 1 1 1 1;
+    border-left-color: rgb(238, 211, 215);
+    border-left-style: solid;
+    border-left-width: 0.666667px;
+    border-right-color: rgb(238, 211, 215);
+    border-right-style: solid;
+    border-right-width: 0.666667px;
+    border-top-color: rgb(238, 211, 215);
+    border-top-left-radius: 4px;
+    border-top-right-radius: 4px;
+    border-top-style: solid;
+    border-top-width: 0.666667px;
+    color: rgb(185, 74, 72);
+    margin-bottom: 0px;
+    margin-left: 0px;
+    margin-right: 0px;
+    margin-top: 30px;
+    padding-bottom: 8px;
+    padding-left: 14px;
+    padding-right: 35px;
+    padding-right: 14px;
+    padding-top: 8px;
+}
+.warning strong {
+    color: rgb(185, 74, 72)
+}
+.warning a {
+    color: rgb(0, 136, 204)
+}
+.warning .message {
+    margin-right: 14px;
+}
+.warning .message:last-child {
+    margin-right: 21px;
+}
+.warning .button {
+    border: none;
+    background: none;
+    color: inherit;
+    cursor: pointer;
+    font-size: 14px;
+}

first-edition/src/theme/header.hbs

@@ -0,0 +1,27 @@
+<div id="draft-warning" class="warning">
+    <span class="message">You are reading an <strong>outdated</strong> edition of TRPL. For more, go <a href="../index.html">here</a>.</span>
+    <button type="button" id="hide-draft-warning" title="Hide draft warning" class="button">
+        <i class="fa fa-times"></i>
+    </button>
+</div>
+<!-- Hide / unhide warning before it is displayed -->
+<script type="text/javascript">
+var warning = localStorage.getItem('trpl-first-edition-draft-warning');
+
+if (warning === 'hidden') {
+    Array
+    .from(document.querySelectorAll('#page-wrapper'))
+    .forEach(function(block) { block.classList.remove('has-warning'); });
+    var elem = document.getElementById("draft-warning");
+    elem.parentNode.removeChild(elem);
+}
+
+document.addEventListener("DOMContentLoaded", function(event) { 
+    document.getElementById("hide-draft-warning").addEventListener("click", function(e) {
+        var elem = document.getElementById("draft-warning");
+        elem.parentNode.removeChild(elem);
+
+        localStorage.setItem('trpl-first-edition-draft-warning', 'hidden');
+    });
+});
+</script>

index.md

@@ -1,11 +1,25 @@
-% The Rust Programming Language
+# The Rust Programming Language
 
-There are two editions of "The Rust Programming Language":
+The current edition of "The Rust Programming Language" is the second
+edition, which you can [read here](second-edition/index.html).
 
-* [First edition](first-edition/index.html)
-* [Second edition](second-edition/index.html)
+The source for all editions lives [on GitHub](https://github.com/rust-lang/book).
+Please open issues with any questions, concerns, or tweaks.
 
-The second edition is a complete re-write. It is still under construction,
-though it is far enough along to learn most of Rust. We suggest reading the
-second edition and then checking out the first edition later to pick up some of
-the more esoteric parts of the language.
+## Notes
+
+The second edition is still receiving some minor edits, but is effectively
+complete. It will be [available in dead-tree form through NoStarch
+Press](https://nostarch.com/Rust) once these final edits are complete.
+
+The second edition is a complete re-write of TRPL, from the ground up,
+and is therefore very different from the first edition.
+
+## Other editions
+
+We keep older editions of TRPL online for history's sake. 
+
+### First Edition
+
+YOu can [read the first edition of "The Rust Programming Language"
+here](first-edition/index.html).