diff --git a/doc/stdenv/stdenv.xml b/doc/stdenv/stdenv.xml
index 6962c57a6acb..d33ee382d0b5 100644
--- a/doc/stdenv/stdenv.xml
+++ b/doc/stdenv/stdenv.xml
@@ -474,14 +474,6 @@ passthru.updateScript = writeScript "update-zoom-us" ''
       The attribute can also contain a list, a script followed by arguments to be passed to it:
 <programlisting>
 passthru.updateScript = [ ../../update.sh pname "--requested-release=unstable" ];
-</programlisting>
-      Finally, the attribute can be an attribute set, listing the attribute path and extra supported features in addition to command.
-<programlisting>
-passthru.updateScript = {
-  command = [ ../../update.sh pname ];
-  attrPath = pname;
-  supportedFeatures = [ … ];
-};
 </programlisting>
       <note>
        <para>
@@ -489,41 +481,6 @@ passthru.updateScript = {
        </para>
       </note>
      </para>
-     <para>
-       <filename>maintainers/scripts/update.nix</filename> also supports automatically creating commits by running it with <literal>--argstr commit true</literal>. Neither declaring the <variable>attrPath</variable> attribute, or adding a <literal>commit</literal> to <variable>supportedFeatures</variable> and <link xlink:href="#var-passthru-updateScript-commit">modifying the script accordingly</link> is required. It might be useful if you want to customize the values to something else than what <filename>update.nix</filename> detects.
-     </para>
-     <variablelist>
-      <title>Supported features</title>
-      <varlistentry xml:id="var-passthru-updateScript-commit">
-       <term>
-        <varname>commit</varname>
-       </term>
-       <listitem>
-        <para>
-         Whenever the update script exits with <literal>0</literal> return
-         status, it is expected to print a JSON list containing an object for
-         each updated attribute. Empty list can be returned when the script did
-         not update any files: for example, when the attribute is already the
-         latest version. The required keys can be seen below:
-<programlisting>
-[
-  {
-    "attrPath": "volume_key",
-    "oldVersion": "0.3.11",
-    "newVersion": "0.3.12",
-    "files": [
-      "/path/to/nixpkgs/pkgs/development/libraries/volume-key/default.nix"
-    ]
-  }
-]
-</programlisting>
-        </para>
-        <para>
-          When the returned array contains exactly one object (e.g. <literal>[{}]</literal>), keys can be omitted and will be determined automatically. Finding out <variable>newVersion</variable> requires <variable>attrPath</variable> to be present either in the update script output or passed to the <variable>passthru.updateScript</variable> attribute set.
-        </para>
-       </listitem>
-      </varlistentry>
-     </variablelist>
      <para>
       For information about how to run the updates, execute <command>nix-shell maintainers/scripts/update.nix</command>.
      </para>