diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07bb58b54081d4..1468a641918113 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,9 +2,9 @@
 
 Select a Node.js version below to view the changelog history:
 
-* [Node.js 18](doc/changelogs/CHANGELOG_V18.md) **Current**
+* [Node.js 18](doc/changelogs/CHANGELOG_V18.md) **Long Term Support**
 * [Node.js 17](doc/changelogs/CHANGELOG_V17.md) **Current**
-* [Node.js 16](doc/changelogs/CHANGELOG_V16.md) **Long Term Support**
+* [Node.js 16](doc/changelogs/CHANGELOG_V16.md) Long Term Support
 * [Node.js 15](doc/changelogs/CHANGELOG_V15.md) End-of-Life
 * [Node.js 14](doc/changelogs/CHANGELOG_V14.md) Long Term Support
 * [Node.js 13](doc/changelogs/CHANGELOG_V13.md) End-of-Life
@@ -27,7 +27,7 @@ release.
 
 <table>
 <tr>
-  <th title="Current"><a href="doc/changelogs/CHANGELOG_V18.md">18</a> (Current)</th>
+  <th title="LTS Until 2025-04"><a href="doc/changelogs/CHANGELOG_V18.md">18</a> (LTS)</th>
   <th title="Current"><a href="doc/changelogs/CHANGELOG_V17.md">17</a> (Current)</th>
   <th title="LTS Until 2024-04"><a href="doc/changelogs/CHANGELOG_V16.md">16</a> (LTS)</th>
   <th title="LTS Until 2023-04"><a href="doc/changelogs/CHANGELOG_V14.md">14</a> (LTS)</th>
@@ -35,7 +35,8 @@ release.
 </tr>
 <tr>
   <td valign="top">
-<b><a href="doc/changelogs/CHANGELOG_V18.md#18.11.0">18.11.0</a></b><br/>
+<b><a href="doc/changelogs/CHANGELOG_V18.md#18.12.0">18.12.0</a></b><br/>
+<a href="doc/changelogs/CHANGELOG_V18.md#18.11.0">18.11.0</a><br/>
 <a href="doc/changelogs/CHANGELOG_V18.md#18.10.0">18.10.0</a><br/>
 <a href="doc/changelogs/CHANGELOG_V18.md#18.9.1">18.9.1</a><br/>
 <a href="doc/changelogs/CHANGELOG_V18.md#18.9.0">18.9.0</a><br/>
diff --git a/doc/changelogs/CHANGELOG_V18.md b/doc/changelogs/CHANGELOG_V18.md
index fc20daf1d44967..4e25e722b2277d 100644
--- a/doc/changelogs/CHANGELOG_V18.md
+++ b/doc/changelogs/CHANGELOG_V18.md
@@ -4,10 +4,14 @@
 
 <table>
 <tr>
+<th>LTS 'Hydrogen'</th>
 <th>Current</th>
 </tr>
 <tr>
 <td>
+<a href="#18.12.0">18.12.0</a><br/>
+</td>
+<td>
 <a href="#18.11.0">18.11.0</a><br/>
 <a href="#18.10.0">18.10.0</a><br/>
 <a href="#18.9.1">18.9.1</a><br/>
@@ -45,6 +49,17 @@
   * [io.js](CHANGELOG_IOJS.md)
   * [Archive](CHANGELOG_ARCHIVE.md)
 
+<a id="18.12.0"></a>
+
+## 2022-10-25, Version 18.12.0 'Hydrogen' (LTS), @ruyadorno and @RafaelGSS
+
+### Notable Changes
+
+This release marks the transition of Node.js 18.x into Long Term Support (LTS)
+with the codename 'Hydrogen'. The 18.x release line now moves into "Active LTS"
+and will remain so until October 2023. After that time, it will move into
+"Maintenance" until end of life in April 2025.
+
 <a id="18.11.0"></a>
 
 ## 2022-10-13, Version 18.11.0 (Current), @danielleadams
diff --git a/src/node_version.h b/src/node_version.h
index 95702b5749be04..bd75c5fe0ae162 100644
--- a/src/node_version.h
+++ b/src/node_version.h
@@ -23,13 +23,13 @@
 #define SRC_NODE_VERSION_H_
 
 #define NODE_MAJOR_VERSION 18
-#define NODE_MINOR_VERSION 11
-#define NODE_PATCH_VERSION 1
+#define NODE_MINOR_VERSION 12
+#define NODE_PATCH_VERSION 0
 
-#define NODE_VERSION_IS_LTS 0
-#define NODE_VERSION_LTS_CODENAME ""
+#define NODE_VERSION_IS_LTS 1
+#define NODE_VERSION_LTS_CODENAME "Hydrogen"
 
-#define NODE_VERSION_IS_RELEASE 0
+#define NODE_VERSION_IS_RELEASE 1
 
 #ifndef NODE_STRINGIFY
 #define NODE_STRINGIFY(n) NODE_STRINGIFY_HELPER(n)
diff --git a/test/parallel/test-process-release.js b/test/parallel/test-process-release.js
index ccac34621fac67..4455ad9ca23c64 100644
--- a/test/parallel/test-process-release.js
+++ b/test/parallel/test-process-release.js
@@ -23,6 +23,8 @@ if (versionParts[0] === '4' && versionParts[1] >= 2) {
   assert.strictEqual(process.release.lts, 'Fermium');
 } else if (versionParts[0] === '16' && versionParts[1] >= 13) {
   assert.strictEqual(process.release.lts, 'Gallium');
+} else if (versionParts[0] === '18' && versionParts[1] >= 12) {
+  assert.strictEqual(process.release.lts, 'Hydrogen');
 } else {
   assert.strictEqual(process.release.lts, undefined);
 }