2023-10-24, Version 20.9.0 'Iron' (LTS)

Notable changes:

This release marks the transition of Node.js 20.x into Long Term Support (LTS)
with the codename 'Iron'. The 20.x release line now moves into "Active LTS"
and will remain so until October 2024. After that time, it will move into
"Maintenance" until end of life in April 2026.

PR-URL: #50298

Author: richardlau

CHANGELOG.md

@@ -3,7 +3,7 @@
 Select a Node.js version below to view the changelog history:
 
 * [Node.js 21](doc/changelogs/CHANGELOG_V21.md) **Current**
-* [Node.js 20](doc/changelogs/CHANGELOG_V20.md) **Current**
+* [Node.js 20](doc/changelogs/CHANGELOG_V20.md) **Long Term Support**
 * [Node.js 19](doc/changelogs/CHANGELOG_V19.md) End-of-Life
 * [Node.js 18](doc/changelogs/CHANGELOG_V18.md) **Long Term Support**
 * [Node.js 17](doc/changelogs/CHANGELOG_V17.md) End-of-Life
@@ -31,7 +31,7 @@ release.
 <table>
 <tr>
   <th title="Current"><a href="doc/changelogs/CHANGELOG_V21.md">21</a> (Current)</th>
-  <th title="Current"><a href="doc/changelogs/CHANGELOG_V20.md">20</a> (Current)</th>
+  <th title="LTS Until 2026-04"><a href="doc/changelogs/CHANGELOG_V20.md">20</a> (LTS)</th>
   <th title="LTS Until 2025-04"><a href="doc/changelogs/CHANGELOG_V18.md">18</a> (LTS)</th>
 </tr>
 <tr>
@@ -40,7 +40,8 @@ release.
 <a href="doc/changelogs/CHANGELOG_V21.md#21.0.0">21.0.0</a><br/>
   </td>
   <td valign="top">
-<b><a href="doc/changelogs/CHANGELOG_V20.md#20.8.1">20.8.1</a></b><br/>
+<b><a href="doc/changelogs/CHANGELOG_V20.md#20.9.0">20.9.0</a></b><br/>
+<a href="doc/changelogs/CHANGELOG_V20.md#20.8.1">20.8.1</a><br/>
 <a href="doc/changelogs/CHANGELOG_V20.md#20.8.0">20.8.0</a><br/>
 <a href="doc/changelogs/CHANGELOG_V20.md#20.7.0">20.7.0</a><br/>
 <a href="doc/changelogs/CHANGELOG_V20.md#20.6.1">20.6.1</a><br/>

doc/changelogs/CHANGELOG_V20.md

@@ -4,10 +4,14 @@
 
 <table>
 <tr>
+<th>LTS 'Iron'</th>
 <th>Current</th>
 </tr>
 <tr>
 <td>
+<a href="#20.9.0">20.9.0</a><br/>
+</td>
+<td>
 <a href="#20.8.1">20.8.1</a><br/>
 <a href="#20.8.0">20.8.0</a><br/>
 <a href="#20.7.0">20.7.0</a><br/>
@@ -48,6 +52,24 @@
   * [io.js](CHANGELOG_IOJS.md)
   * [Archive](CHANGELOG_ARCHIVE.md)
 
+<a id="20.9.0"></a>
+
+## 2023-10-24, Version 20.9.0 'Iron' (LTS), @richardlau
+
+### Notable Changes
+
+This release marks the transition of Node.js 20.x into Long Term Support (LTS)
+with the codename 'Iron'. The 20.x release line now moves into "Active LTS"
+and will remain so until October 2024. After that time, it will move into
+"Maintenance" until end of life in April 2026.
+
+### Known issue
+
+Collecting code coverage via the `NODE_V8_COVERAGE` environment variable may
+lead to a hang. This is not thought to be a regression in Node.js 20 (some
+reports are on Node.js 18). For more information, including some potential
+workarounds, see issue [#49344](https://github.com/nodejs/node/issues/49344).
+
 <a id="20.8.1"></a>
 
 ## 2023-10-13, Version 20.8.1 (Current), @RafaelGSS

test/parallel/test-process-release.js

@@ -25,6 +25,8 @@ if (versionParts[0] === '4' && versionParts[1] >= 2) {
   assert.strictEqual(process.release.lts, 'Gallium');
 } else if (versionParts[0] === '18' && versionParts[1] >= 12) {
   assert.strictEqual(process.release.lts, 'Hydrogen');
+} else if (versionParts[0] === '20' && versionParts[1] >= 9) {
+  assert.strictEqual(process.release.lts, 'Iron');
 } else {
   assert.strictEqual(process.release.lts, undefined);
 }