diff --git a/html/ops/create_app_version.php b/html/ops/create_app_version.php
new file mode 100644
index 0000000000..d25e02d4ad
--- /dev/null
+++ b/html/ops/create_app_version.php
@@ -0,0 +1,121 @@
+<?php
+// This file is part of BOINC.
+// http://boinc.berkeley.edu
+// Copyright (C) 2021 University of California
+//
+// BOINC is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License
+// as published by the Free Software Foundation,
+// either version 3 of the License, or (at your option) any later version.
+//
+// BOINC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with BOINC.  If not, see <http://www.gnu.org/licenses/>.
+
+// web-based app version creation.
+
+require_once("../inc/util_ops.inc");
+
+function show_form() {
+    admin_page_head("Create app version");
+    echo "
+        <form action=create_app_version.php method=post ENCTYPE=\"multipart/form-data\">"
+    ;
+
+    form_input_text("App name", "app_name");
+    form_input_text("Version number", "version_num");
+    form_input_text("Platform name", "platform_name");
+    form_input_text("Plan class", "plan_class");
+    form_input_hidden("action", "create");
+    echo "
+        <input size=80 style=\"background-color: white;\" type=file name=\"new_file[]\" multiple>
+        <p>
+        <input class=\"btn btn-success\" type=submit value=OK>
+        </form>
+    ";
+    admin_page_tail();
+}
+
+function create_version() {
+    $app_name = post_str("app_name");
+    $version_num = post_str("version_num");
+    $platform_name = post_str("platform_name");
+    $plan_class = post_str("plan_class");
+
+    $app_name = BoincDb::escape_string($app_name);
+    $app = BoincApp::lookup("name='$app_name'");
+    if (!$app) {
+        admin_error_page("No such app");
+    }
+    $platform_name = BoincDb::escape_string($platform_name);
+    $platform = BoincPlatform::lookup("name='$platform_name'");
+    if (!$platform) {
+        admin_error_page("No such platform");
+    }
+
+    // make directories as needed
+    //
+    $apps_dir = "../../apps";
+    $app_dir = "$apps_dir/$app_name";
+    if (!is_dir($app_dir)) {
+        mkdir($app_dir);
+    }
+    $version_dir = "$app_dir/$version_num";
+    if (!is_dir($version_dir)) {
+        mkdir($version_dir);
+    }
+    $platform_dir = "$version_dir/$platform_name";
+    if ($plan_class) {
+        $platform_dir .= "__$plan_class";
+    }
+    if (is_dir($platform_dir)) {
+        admin_error_page("App version dir already exists");
+    }
+    mkdir($platform_dir);
+
+    // copy files to app version dir
+    //
+    $count = count($_FILES['new_file']['tmp_name']);
+    for ($i=0; $i<$count; $i++) {
+        $tmp_name = $_FILES['new_file']['tmp_name'][$i];
+        if (!is_uploaded_file($tmp_name)) {
+            admin_error_page("$tmp_name is not uploaded file");
+        }
+        $name = $_FILES['new_file']['name'][$i];
+        if (strstr($name, "/")) {
+            admin_error_page("no / allowed");
+        }
+        $ret = rename($tmp_name, "$platform_dir/$name");
+        if (!$ret) {
+            admin_error_page("can't rename $tmp_name to $platform_dir/$name");
+        }
+    }
+
+    admin_page_head("Updating app versions");
+    echo "<pre>\n";
+    $cmd = "cd ../..; bin/update_versions --no_conf";
+    system($cmd);
+    echo "</pre>\n";
+    admin_page_tail();
+}
+
+// creating app versions must be secure
+//
+auth_ops_privilege();   // user must be S_ADMIN or S_DEV
+if (!parse_bool(get_config(), "enable_web_app_version_creation")) {
+    admin_error_page("Disabled");
+}
+
+
+$action = post_str("action", true);
+if ($action == 'create') {
+    create_version();
+} else {
+    show_form();
+}
+
+?>
diff --git a/html/user/autodock_submit.php b/html/user/autodock_submit.php
index 8ecbe1b70d..91c5f4dc5b 100644
--- a/html/user/autodock_submit.php
+++ b/html/user/autodock_submit.php
@@ -287,7 +287,7 @@ function show_info() {
     page_tail();
 }
 
-if (!parse_bool($config, "autodock_submit_enabled")) {
+if (!parse_bool($config, "enable_autodock_submit")) {
     error_page("Autodock not enabled");
 }
 
diff --git a/tools/update_versions b/tools/update_versions
index 5f3dbb812f..62163f6e8e 100755
--- a/tools/update_versions
+++ b/tools/update_versions
@@ -22,6 +22,8 @@
 // script to create app versions,
 // and stage their files in the download dir.
 // See https://boinc.berkeley.edu/trac/wiki/AppVersionNew
+//
+// --no_conf: don't pause for user confirmation
 
 
 error_reporting(E_ALL);
@@ -237,7 +239,7 @@ function confirm_sig_gen($name) {
 // process a file
 //
 function process_file($a, $v, $p, $name, $fds) {
-    global $key_dir;
+    global $key_dir, $no_conf;
     $fd = lookup_file($fds, $name);
     if (!$fd) {
         $fd = new StdClass;
@@ -259,7 +261,9 @@ function process_file($a, $v, $p, $name, $fds) {
     } else {
         $keypath = "$key_dir/code_sign_private";
         if (is_file($keypath)) {
-            confirm_sig_gen($name);
+            if (!$no_conf) {
+                confirm_sig_gen($name);
+            }
             $handle = popen("bin/sign_executable $path $keypath", "r");
             $fd->signature = fread($handle, 8192);
             pclose($handle);
@@ -419,6 +423,7 @@ function convert_simplexml($x) {
 }
 
 function process_version($a, $v, $p) {
+    global $no_conf;
     echo "Found app version directory for: $a $v $p\n";
     $app = lookup_app($a);
     parse_platform_name($p, $platform, $plan_class);
@@ -467,12 +472,14 @@ function process_version($a, $v, $p) {
     // if API version isn't specified in version.xml,
     // try to find it embedded in the executable
     //
-    if (!strlen($vers->api_version)) {
+    if (!property_exists($vers, 'api_version') || !strlen($vers->api_version)) {
         $vers->api_version = get_api_version($a, $v, $p, $fds);
     }
 
-    if (!confirm($fds, $vers)) {
-        return;
+    if (!$no_conf) {
+        if (!confirm($fds, $vers)) {
+            return;
+        }
     }
 
     $xml = "";
@@ -550,6 +557,7 @@ function scan_apps() {
     }
 }
 
+$no_conf = count($argv)>1 && $argv[1]='--no_conf';
 scan_apps();
 touch("reread_db");     // if feeder is running, tell it to reread DB