From ff0e79d533f226ac89b7454636147a7c65d8c74d Mon Sep 17 00:00:00 2001
From: Sebastian Beltran <bjohansebas@gmail.com>
Date: Sat, 8 Nov 2025 14:17:46 +0000
Subject: [PATCH] http: move writeHeader to end-of-life

---
 doc/api/deprecations.md            |  5 ++++-
 lib/_http_server.js                |  5 -----
 test/parallel/test-write-header.js | 20 --------------------
 3 files changed, 4 insertions(+), 26 deletions(-)
 delete mode 100644 test/parallel/test-write-header.js

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index 610bcc4f7302a1..95a237326f7f49 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -1600,6 +1600,9 @@ instead.
 
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/60635
+    description: End-of-Life.
   - version: v25.0.0
     pr-url: https://github.com/nodejs/node/pull/59060
     description: Runtime deprecation.
@@ -1608,7 +1611,7 @@ changes:
     description: Documentation-only deprecation.
 -->
 
-Type: Runtime
+Type: End-of-Life
 
 The `node:http` module `ServerResponse.prototype.writeHeader()` API is
 deprecated. Please use `ServerResponse.prototype.writeHead()` instead.
diff --git a/lib/_http_server.js b/lib/_http_server.js
index 3fd14faedf46d8..9df050e84289ae 100644
--- a/lib/_http_server.js
+++ b/lib/_http_server.js
@@ -84,7 +84,6 @@ const {
 } = require('internal/errors');
 const {
   assignFunctionName,
-  deprecate,
   kEmptyObject,
   promisify,
 } = require('internal/util');
@@ -447,10 +446,6 @@ function writeHead(statusCode, reason, obj) {
   return this;
 }
 
-ServerResponse.prototype.writeHeader = deprecate(ServerResponse.prototype.writeHead,
-                                                 'ServerResponse.prototype.writeHeader is deprecated.',
-                                                 'DEP0063');
-
 function storeHTTPOptions(options) {
   this[kIncomingMessage] = options.IncomingMessage || IncomingMessage;
   this[kServerResponse] = options.ServerResponse || ServerResponse;
diff --git a/test/parallel/test-write-header.js b/test/parallel/test-write-header.js
deleted file mode 100644
index 38a835bcddbf9c..00000000000000
--- a/test/parallel/test-write-header.js
+++ /dev/null
@@ -1,20 +0,0 @@
-'use strict';
-const common = require('../common');
-const assert = require('assert');
-const http = require('http');
-
-common.expectWarning('DeprecationWarning',
-                     'ServerResponse.prototype.writeHeader is deprecated.', 'DEP0063');
-
-const server = http.createServer(common.mustCall((req, res) => {
-  res.writeHeader(200, [ 'test', '2', 'test2', '2' ]);
-  res.end();
-})).listen(0, common.mustCall(() => {
-  http.get({ port: server.address().port }, common.mustCall((res) => {
-    assert.strictEqual(res.headers.test, '2');
-    assert.strictEqual(res.headers.test2, '2');
-    res.resume().on('end', common.mustCall(() => {
-      server.close();
-    }));
-  }));
-}));