diff --git a/CHANGELOG.md b/CHANGELOG.md
index af53b6c95..c2996b161 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# v1.1.17
+## 02/17/2017
+
+1. [](#bugfix)
+    * Fix for double extensions getting added during some redirects [#1307](https://github.com/getgrav/grav/issues/1307)
+    * Fix syntax error in PHP 5.3. Move the version check before requiring the autoloaded deps
+    * Fix Whoops displaying error page if there is PHP core warning or error [Admin #980](https://github.com/getgrav/grav-plugin-admin/issues/980)
+
 # v1.1.16
 ## 02/10/2017
 
diff --git a/README.md b/README.md
index ef5a74569..901544c86 100644
--- a/README.md
+++ b/README.md
@@ -146,6 +146,7 @@ Support us with a monthly donation and help us continue our activities. [[Become
 
 # Sponsors
 Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/grav#sponsor)]
+
 <a href="https://opencollective.com/grav/sponsor/0/website" target="_blank"><img src="https://opencollective.com/grav/sponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/grav/sponsor/1/website" target="_blank"><img src="https://opencollective.com/grav/sponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/grav/sponsor/2/website" target="_blank"><img src="https://opencollective.com/grav/sponsor/2/avatar.svg"></a>
diff --git a/index.php b/index.php
index 8d8d2b62f..b7a100134 100644
--- a/index.php
+++ b/index.php
@@ -7,6 +7,7 @@
  */
 
 namespace Grav;
+define('GRAV_PHP_MIN', '5.5.9');
 
 // Ensure vendor libraries exist
 $autoload = __DIR__ . '/vendor/autoload.php';
@@ -23,13 +24,13 @@ if (PHP_SAPI == 'cli-server') {
 use Grav\Common\Grav;
 use RocketTheme\Toolbox\Event\Event;
 
-// Register the auto-loader.
-$loader = require_once $autoload;
-
 if (version_compare($ver = PHP_VERSION, $req = GRAV_PHP_MIN, '<')) {
     die(sprintf('You are running PHP %s, but Grav needs at least <strong>PHP %s</strong> to run.', $ver, $req));
 }
 
+// Register the auto-loader.
+$loader = require_once $autoload;
+
 // Set timezone to default, falls back to system if php.ini not set
 date_default_timezone_set(@date_default_timezone_get());
 
@@ -50,6 +51,6 @@ $grav = Grav::instance(
 try {
     $grav->process();
 } catch (\Exception $e) {
-    $grav->fireEvent('onFatalException', new Event(['exception' => $e]));
+    $grav->fireEvent('onFatalException', new Event(array('exception' => $e)));
     throw $e;
 }
diff --git a/system/defines.php b/system/defines.php
index d033a98d8..387435b35 100644
--- a/system/defines.php
+++ b/system/defines.php
@@ -8,10 +8,13 @@
 
 // Some standard defines
 define('GRAV', true);
-define('GRAV_VERSION', '1.1.16');
+define('GRAV_VERSION', '1.1.17');
 define('GRAV_TESTING', false);
 define('DS', '/');
-define('GRAV_PHP_MIN', '5.5.9');
+
+if (!defined('GRAV_PHP_MIN')) {
+    define('GRAV_PHP_MIN', '5.5.9');
+}
 
 // Directories and Paths
 if (!defined('GRAV_ROOT')) {
diff --git a/system/src/Grav/Common/Errors/Errors.php b/system/src/Grav/Common/Errors/Errors.php
index 49c79e452..b073f756f 100644
--- a/system/src/Grav/Common/Errors/Errors.php
+++ b/system/src/Grav/Common/Errors/Errors.php
@@ -20,7 +20,8 @@ class Errors
         $jsonRequest = $_SERVER && isset($_SERVER['HTTP_ACCEPT']) && $_SERVER['HTTP_ACCEPT'] == 'application/json';
 
         // Setup Whoops-based error handler
-        $whoops = new \Whoops\Run;
+        $system = new SystemFacade;
+        $whoops = new \Whoops\Run($system);
 
         $verbosity = 1;
 
diff --git a/system/src/Grav/Common/Errors/SystemFacade.php b/system/src/Grav/Common/Errors/SystemFacade.php
new file mode 100644
index 000000000..3170a1233
--- /dev/null
+++ b/system/src/Grav/Common/Errors/SystemFacade.php
@@ -0,0 +1,39 @@
+<?php
+/**
+ * @package    Grav.Common.Errors
+ *
+ * @copyright  Copyright (C) 2014 - 2016 RocketTheme, LLC. All rights reserved.
+ * @license    MIT License; see LICENSE file for details.
+ */
+
+namespace Grav\Common\Errors;
+
+class SystemFacade extends \Whoops\Util\SystemFacade
+{
+    protected $whoopsShutdownHandler;
+
+    /**
+     * @param callable $function
+     *
+     * @return void
+     */
+    public function registerShutdownFunction(callable $function)
+    {
+        $this->whoopsShutdownHandler = $function;
+        register_shutdown_function([$this, 'handleShutdown']);
+    }
+
+    /**
+     * Special case to deal with Fatal errors and the like.
+     */
+    public function handleShutdown()
+    {
+        $error = $this->getLastError();
+
+        // Ignore core warnings and errors.
+        if ($error && !($error['type'] & (E_CORE_WARNING | E_CORE_ERROR))) {
+            $handler = $this->whoopsShutdownHandler;
+            $handler();
+        }
+    }
+}
diff --git a/system/src/Grav/Common/Page/Pages.php b/system/src/Grav/Common/Page/Pages.php
index f8fb702c7..4e8614aec 100644
--- a/system/src/Grav/Common/Page/Pages.php
+++ b/system/src/Grav/Common/Page/Pages.php
@@ -345,9 +345,10 @@ class Pages
                     $page = $this->dispatch($route, $all);
                 } else {
                     // Try Regex style redirects
+                    $uri = $this->grav['uri'];
                     $source_url = $url;
-                    $extension = $this->grav['uri']->extension();
-                    if (isset($extension)) {
+                    $extension = $uri->extension();
+                    if (isset($extension) && !Utils::endsWith($uri->url(), $extension)) {
                         $source_url.= '.' . $extension;
                     }