diff --git a/complementary-tools/index.html b/complementary-tools/index.html
index 6cb4973..1d84181 100755
--- a/complementary-tools/index.html
+++ b/complementary-tools/index.html
@@ -191,6 +191,7 @@
 <li><a href="https://github.com/overblog/GraphQLBundle">Symfony Bundle</a> by Overblog</li>
 <li>Define types with Doctrine ORM annotations (<a href="https://github.com/Ecodev/graphql-doctrine">for PHP7.1</a>, for <a href="https://github.com/rahuljayaraman/doctrine-graphql">earlier PHP versions</a>)</li>
 <li>Out of the box integration with any PSR-7 compatible framework (like <a href="http://slimframework.com">Slim</a> or <a href="http://zendframework.github.io/zend-expressive/">Zend Expressive</a>) via <a href="../executing-queries.md/#using-server">Standard Server</a></li>
+<li><a href="https://github.com/phps-cans/psr7-middleware-graphql">PSR 15 compliant middleware</a> for the Standard Server (experimental)</li>
 </ul>
 <h1 id="tools">Tools</h1>
 <ul>
diff --git a/index.html b/index.html
index 406ba54..04d947c 100755
--- a/index.html
+++ b/index.html
@@ -280,5 +280,5 @@ existing PHP frameworks, add support for Relay, etc.</p>
 
 <!--
 MkDocs version : 0.16.3
-Build Date UTC : 2017-10-16 16:06:36
+Build Date UTC : 2018-01-01 15:06:12
 -->
diff --git a/mkdocs/search_index.json b/mkdocs/search_index.json
index 10f7272..b1de354 100755
--- a/mkdocs/search_index.json
+++ b/mkdocs/search_index.json
@@ -62,12 +62,12 @@
         },
         {
             "location": "/complementary-tools/",
-            "text": "Integrations\n\n\n\n\nIntegration with Relay\n\n\nIntegration with Laravel 5\n + \nRelay Helpers for Laravel\n\n\nSymfony Bundle\n by Overblog\n\n\nDefine types with Doctrine ORM annotations (\nfor PHP7.1\n, for \nearlier PHP versions\n)\n\n\nOut of the box integration with any PSR-7 compatible framework (like \nSlim\n or \nZend Expressive\n) via \nStandard Server\n\n\n\n\nTools\n\n\n\n\nGraphiQL\n - An in-browser IDE for exploring GraphQL\n\n\nChromeiQL\n\n  or \nGraphiQL Feen\n -\n  GraphiQL as Google Chrome extension\n\n\nDataLoader PHP\n - as a ready implementation for \ndeferred resolvers",
+            "text": "Integrations\n\n\n\n\nIntegration with Relay\n\n\nIntegration with Laravel 5\n + \nRelay Helpers for Laravel\n\n\nSymfony Bundle\n by Overblog\n\n\nDefine types with Doctrine ORM annotations (\nfor PHP7.1\n, for \nearlier PHP versions\n)\n\n\nOut of the box integration with any PSR-7 compatible framework (like \nSlim\n or \nZend Expressive\n) via \nStandard Server\n\n\nPSR 15 compliant middleware\n for the Standard Server (experimental)\n\n\n\n\nTools\n\n\n\n\nGraphiQL\n - An in-browser IDE for exploring GraphQL\n\n\nChromeiQL\n\n  or \nGraphiQL Feen\n -\n  GraphiQL as Google Chrome extension\n\n\nDataLoader PHP\n - as a ready implementation for \ndeferred resolvers",
             "title": "Complementary Tools"
         },
         {
             "location": "/complementary-tools/#integrations",
-            "text": "Integration with Relay  Integration with Laravel 5  +  Relay Helpers for Laravel  Symfony Bundle  by Overblog  Define types with Doctrine ORM annotations ( for PHP7.1 , for  earlier PHP versions )  Out of the box integration with any PSR-7 compatible framework (like  Slim  or  Zend Expressive ) via  Standard Server",
+            "text": "Integration with Relay  Integration with Laravel 5  +  Relay Helpers for Laravel  Symfony Bundle  by Overblog  Define types with Doctrine ORM annotations ( for PHP7.1 , for  earlier PHP versions )  Out of the box integration with any PSR-7 compatible framework (like  Slim  or  Zend Expressive ) via  Standard Server  PSR 15 compliant middleware  for the Standard Server (experimental)",
             "title": "Integrations"
         },
         {
diff --git a/sitemap.xml b/sitemap.xml
index 7f64afa..00bea38 100755
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -4,7 +4,7 @@
     
     <url>
      <loc>/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -12,7 +12,7 @@
     
     <url>
      <loc>/getting-started/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -20,7 +20,7 @@
     
     <url>
      <loc>/complementary-tools/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -29,67 +29,67 @@
         
     <url>
      <loc>/type-system/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/object-types/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/scalar-types/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/enum-types/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/lists-and-nonnulls/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/interfaces/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/unions/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/input-types/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/directives/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/schema/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
     <url>
      <loc>/type-system/type-language/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
         
@@ -98,7 +98,7 @@
     
     <url>
      <loc>/executing-queries/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -106,7 +106,7 @@
     
     <url>
      <loc>/data-fetching/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -114,7 +114,7 @@
     
     <url>
      <loc>/error-handling/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -122,7 +122,7 @@
     
     <url>
      <loc>/security/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -130,7 +130,7 @@
     
     <url>
      <loc>/how-it-works/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>
     
@@ -138,7 +138,7 @@
     
     <url>
      <loc>/reference/</loc>
-     <lastmod>2017-10-16</lastmod>
+     <lastmod>2018-01-01</lastmod>
      <changefreq>daily</changefreq>
     </url>