diff --git a/doc/quickjs.texi b/doc/quickjs.texi
index c335eeb..f114d4d 100644
--- a/doc/quickjs.texi
+++ b/doc/quickjs.texi
@@ -193,30 +193,15 @@ QuickJS archive.
 
 @section Test262 (ECMAScript Test Suite)
 
-A test262 runner is included in the QuickJS archive. The test262 tests
-can be installed in the QuickJS source directory with:
+A test262 runner is included in the QuickJS archive.
+
+The tests can be run with:
 
 @example
-git clone https://github.com/tc39/test262.git test262
-cd test262
-patch -p1 < ../tests/test262.patch
-cd ..
-@end example
-
-The patch adds the implementation specific @code{harness} functions
-and optimizes the inefficient RegExp character classes and Unicode
-property escapes tests (the tests themselves are not modified, only a
-slow string initialization function is optimized).
-
-The tests can be run with
-@example
-make test2
+make test262
 @end example
 
 The configuration files @code{test262.conf}
-(resp. @code{test262o.conf} for the old ES5.1 tests@footnote{The old
-ES5.1 tests can be extracted with @code{git clone --single-branch
---branch es5-tests https://github.com/tc39/test262.git test262o}}))
 contain the options to run the various tests. Tests can be excluded
 based on features or filename.
 
@@ -265,14 +250,6 @@ The following features are not supported yet:
 
 ECMA402 (Internationalization API) is not supported.
 
-@subsection Extensions
-
-@itemize
-
-@item The first line of a script beginning with @code{#!} is ignored.
-
-@end itemize
-
 @section Modules
 
 ES6 modules are fully supported. The default name resolution is the
diff --git a/tests/test262.patch b/tests/test262.patch
deleted file mode 100644
index 6576bdc..0000000
--- a/tests/test262.patch
+++ /dev/null
@@ -1,71 +0,0 @@
-diff --git a/harness/atomicsHelper.js b/harness/atomicsHelper.js
-index 9c1217351e..3c24755558 100644
---- a/harness/atomicsHelper.js
-+++ b/harness/atomicsHelper.js
-@@ -227,10 +227,14 @@ $262.agent.waitUntil = function(typedArray, index, expected) {
-  *   }
-  */
- $262.agent.timeouts = {
--  yield: 100,
--  small: 200,
--  long: 1000,
--  huge: 10000,
-+//  yield: 100,
-+//  small: 200,
-+//  long: 1000,
-+//  huge: 10000,
-+  yield: 20,
-+  small: 20,
-+  long: 100,
-+  huge: 1000,
- };
- 
- /**
-diff --git a/harness/regExpUtils.js b/harness/regExpUtils.js
-index be7039fda0..7b38abf8df 100644
---- a/harness/regExpUtils.js
-+++ b/harness/regExpUtils.js
-@@ -6,24 +6,27 @@ description: |
- defines: [buildString, testPropertyEscapes, matchValidator]
- ---*/
- 
-+if ($262 && typeof $262.codePointRange === "function") {
-+    /* use C function to build the codePointRange (much faster with
-+       slow JS engines) */
-+    codePointRange = $262.codePointRange;
-+} else {
-+    codePointRange = function codePointRange(start, end) {
-+        const codePoints = [];
-+        let length = 0;
-+        for (codePoint = start; codePoint < end; codePoint++) {
-+            codePoints[length++] = codePoint;
-+        }
-+        return String.fromCodePoint.apply(null, codePoints);
-+    }
-+}
-+
- function buildString({ loneCodePoints, ranges }) {
--  const CHUNK_SIZE = 10000;
--  let result = Reflect.apply(String.fromCodePoint, null, loneCodePoints);
--  for (let i = 0; i < ranges.length; i++) {
--    const range = ranges[i];
--    const start = range[0];
--    const end = range[1];
--    const codePoints = [];
--    for (let length = 0, codePoint = start; codePoint <= end; codePoint++) {
--      codePoints[length++] = codePoint;
--      if (length === CHUNK_SIZE) {
--        result += Reflect.apply(String.fromCodePoint, null, codePoints);
--        codePoints.length = length = 0;
--      }
-+    let result = String.fromCodePoint.apply(null, loneCodePoints);
-+    for (const [start, end] of ranges) {
-+        result += codePointRange(start, end + 1);
-     }
--    result += Reflect.apply(String.fromCodePoint, null, codePoints);
--  }
--  return result;
-+    return result;
- }
- 
- function testPropertyEscapes(regex, string, expression) {