From d73aae065ac85cd7de71b815c1c8f28df6391828 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Mon, 16 Jan 2023 16:49:08 +0100
Subject: Cowlib 2.12

Also future-proof some templates. Unfortunately still have
to use a very old Hugo version to build as there's bugs
preventing proper asciidoc use otherwise (.asciidoc files
do not get rendered properly).
---
 _build/data/projects/cowlib.toml                   |   4 +-
 _build/themes/ninenines/layouts/partials/head.html |   6 +-
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 .../2.1/manual/ranch.handshake_cancel/index.html   |   3 +-
 .../2.1/manual/ranch.handshake_continue/index.html |   3 +-
 docs/en/ranch/2.1/manual/ranch.info/index.html     |   3 +-
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 .../2.1/manual/ranch.recv_proxy_header/index.html  |   3 +-
 .../2.1/manual/ranch.remove_connection/index.html  |   3 +-
 .../2.1/manual/ranch.resume_listener/index.html    |   3 +-
 .../manual/ranch.set_max_connections/index.html    |   3 +-
 .../manual/ranch.set_protocol_options/index.html   |   3 +-
 .../manual/ranch.set_transport_options/index.html  |   3 +-
 .../2.1/manual/ranch.start_listener/index.html     |   3 +-
 .../2.1/manual/ranch.stop_listener/index.html      |   3 +-
 .../2.1/manual/ranch.suspend_listener/index.html   |   3 +-
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 docs/en/ranch/2.1/manual/ranch_app/index.html      |   3 +-
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 .../manual/ranch_proxy_header.header/index.html    |   3 +-
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 .../index.html                                     |   3 +-
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 docs/index.xml                                     | 111 +++++++++-
 donate/index.html                                  |  19 +-
 erlanger-playbook/index.html                       |  19 +-
 index.html                                         |  24 ++-
 index.xml                                          | 111 +++++++++-
 services/index.html                                |  19 +-
 sitemap.xml                                        |  32 +++
 slogan/index.html                                  |   3 +-
 tags/index.html                                    |   6 +-
 talks/index.html                                   |   3 +-
 1195 files changed, 3207 insertions(+), 2403 deletions(-)
 create mode 100644 docs/en/cowlib/2.12/manual/cow_cookie.cookie/index.html
 create mode 100644 docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/index.html
 create mode 100644 docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/index.html
 create mode 100644 docs/en/cowlib/2.12/manual/cow_cookie.setcookie/index.html
 create mode 100644 docs/en/cowlib/2.12/manual/cow_cookie/index.html
 create mode 100644 docs/en/cowlib/2.12/manual/cowlib_app/index.html
 create mode 100644 docs/en/cowlib/2.12/manual/index.html
 create mode 100644 docs/en/gun/2.0/manual/gun_ws_protocol/index.html

diff --git a/_build/data/projects/cowlib.toml b/_build/data/projects/cowlib.toml
index 6150d953..d1850709 100644
--- a/_build/data/projects/cowlib.toml
+++ b/_build/data/projects/cowlib.toml
@@ -3,7 +3,7 @@ catchphrase = "Support library for the Web."
 description = "The Web toolbox for HTTP/1.1, HTTP/2, Websocket, Multipart, Cookies, URL encoding..."
 name = "cowlib"
 repository = "https://github.com/ninenines/cowlib"
-versions = ["2.11", "2.10", "2.9", "2.8"]
-branches = ["2.11.0", "2.10.1", "2.9.1", "2.8.0"]
+versions = ["2.12", "2.11", "2.10", "2.9", "2.8"]
+branches = ["2.12.0", "2.11.0", "2.10.1", "2.9.1", "2.8.0"]
 has_source = true
 has_manual = true
diff --git a/_build/themes/ninenines/layouts/partials/head.html b/_build/themes/ninenines/layouts/partials/head.html
index b3410726..b12f87a9 100644
--- a/_build/themes/ninenines/layouts/partials/head.html
+++ b/_build/themes/ninenines/layouts/partials/head.html
@@ -14,7 +14,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    {{ if .RSSLink }}
-        <link rel="alternate" href="{{ .RSSLink }}" type="application/rss+xml" title="{{ .Site.Title }}" />
-	{{ end }}
+	{{ with .OutputFormats.Get "rss" -}}
+		{{ printf `<link rel="%s" type="%s" href="%s" title="%s" />` .Rel .MediaType.Type .Permalink $.Site.Title | safeHTML }}
+	{{ end -}}
 </head>
diff --git a/_build/themes/ninenines/layouts/partials/header.html b/_build/themes/ninenines/layouts/partials/header.html
index cff35bcc..314af2e9 100644
--- a/_build/themes/ninenines/layouts/partials/header.html
+++ b/_build/themes/ninenines/layouts/partials/header.html
@@ -15,7 +15,7 @@
             <div id="side-header">
               <nav>
                 <ul>
-                  <li{{ if or (eq .URL "/articles/") (eq .Section "articles") }} class="active"{{ end }}><a title="Hear my thoughts" href="/articles">Articles</a></li>
+                  <li{{ if or (eq .Page.RelPermalink "/articles/") (eq .Section "articles") }} class="active"{{ end }}><a title="Hear my thoughts" href="/articles">Articles</a></li>
   				  <li{{ if .IsPage }}{{ if eq .Type "talks" }} class="active"{{ end }}{{ end }}><a title="Watch my talks" href="/talks">Talks</a></li>
   				  <li{{ if .IsPage }}{{ if or (eq .Type "docs-index") (eq .Section "docs") }} class="active"{{ end }}{{ end }}><a title="Read the docs" href="/docs">Documentation</a></li>
   				  <li{{ if .IsPage }}{{ if eq .Type "services" }} class="active"{{ end }}{{ end }}><a title="Request my services" href="/services">Consulting & Training</a></li>
diff --git a/articles/asciideck/index.html b/articles/asciideck/index.html
index 6113eb4f..60a1708f 100644
--- a/articles/asciideck/index.html
+++ b/articles/asciideck/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
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diff --git a/articles/cowboy-2.0.0-pre.4/index.html b/articles/cowboy-2.0.0-pre.4/index.html
index 12dba97a..a95b0f95 100644
--- a/articles/cowboy-2.0.0-pre.4/index.html
+++ b/articles/cowboy-2.0.0-pre.4/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.0.0-rc.1/index.html b/articles/cowboy-2.0.0-rc.1/index.html
index 5c1009cb..6aae6533 100644
--- a/articles/cowboy-2.0.0-rc.1/index.html
+++ b/articles/cowboy-2.0.0-rc.1/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.0.0-rc.2/index.html b/articles/cowboy-2.0.0-rc.2/index.html
index 00a867b2..e3e017cb 100644
--- a/articles/cowboy-2.0.0-rc.2/index.html
+++ b/articles/cowboy-2.0.0-rc.2/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.0.0/index.html b/articles/cowboy-2.0.0/index.html
index ce16684a..a7aaa2db 100644
--- a/articles/cowboy-2.0.0/index.html
+++ b/articles/cowboy-2.0.0/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.1.0/index.html b/articles/cowboy-2.1.0/index.html
index 092a2ce9..bf8164da 100644
--- a/articles/cowboy-2.1.0/index.html
+++ b/articles/cowboy-2.1.0/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.2.0/index.html b/articles/cowboy-2.2.0/index.html
index d5038ada..da01e9f5 100644
--- a/articles/cowboy-2.2.0/index.html
+++ b/articles/cowboy-2.2.0/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.3.0/index.html b/articles/cowboy-2.3.0/index.html
index a6516b32..5cdf603f 100644
--- a/articles/cowboy-2.3.0/index.html
+++ b/articles/cowboy-2.3.0/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.4.0/index.html b/articles/cowboy-2.4.0/index.html
index f7a8b381..21494ef5 100644
--- a/articles/cowboy-2.4.0/index.html
+++ b/articles/cowboy-2.4.0/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.5.0/index.html b/articles/cowboy-2.5.0/index.html
index 40872f9c..f251fef9 100644
--- a/articles/cowboy-2.5.0/index.html
+++ b/articles/cowboy-2.5.0/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.6.0/index.html b/articles/cowboy-2.6.0/index.html
index 33ef142f..84e340f7 100644
--- a/articles/cowboy-2.6.0/index.html
+++ b/articles/cowboy-2.6.0/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.7.0/index.html b/articles/cowboy-2.7.0/index.html
index 14e30ab8..d6398dce 100644
--- a/articles/cowboy-2.7.0/index.html
+++ b/articles/cowboy-2.7.0/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.8.0/index.html b/articles/cowboy-2.8.0/index.html
index ca6d9303..bee4f587 100644
--- a/articles/cowboy-2.8.0/index.html
+++ b/articles/cowboy-2.8.0/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/articles/cowboy-2.9.0/index.html b/articles/cowboy-2.9.0/index.html
index ff1e859c..d355b58d 100644
--- a/articles/cowboy-2.9.0/index.html
+++ b/articles/cowboy-2.9.0/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
 <body class="">
diff --git a/articles/cowboy2-qs/index.html b/articles/cowboy2-qs/index.html
index d4d3d4d9..234fe0d5 100644
--- a/articles/cowboy2-qs/index.html
+++ b/articles/cowboy2-qs/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/dont-let-it-crash/index.html b/articles/dont-let-it-crash/index.html
index 6456a49d..2ff5ce37 100644
--- a/articles/dont-let-it-crash/index.html
+++ b/articles/dont-let-it-crash/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/erlang-meetup-10-septembre-2019/index.html b/articles/erlang-meetup-10-septembre-2019/index.html
index 1f3b613a..74bfa4b3 100644
--- a/articles/erlang-meetup-10-septembre-2019/index.html
+++ b/articles/erlang-meetup-10-septembre-2019/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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--- a/articles/erlang-scalability/index.html
+++ b/articles/erlang-scalability/index.html
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-    
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+	</head>
 
 
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index 6e5055a4..c36466fe 100644
--- a/articles/erlang-validate-utf8/index.html
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@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/erlang.mk-and-relx/index.html b/articles/erlang.mk-and-relx/index.html
index 76be0ae0..1f1ffa2e 100644
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+++ b/articles/erlang.mk-and-relx/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/erlanger-playbook-september-2015-update/index.html b/articles/erlanger-playbook-september-2015-update/index.html
index e3a8bf5a..26d53bb9 100644
--- a/articles/erlanger-playbook-september-2015-update/index.html
+++ b/articles/erlanger-playbook-september-2015-update/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/erlanger-playbook/index.html b/articles/erlanger-playbook/index.html
index d474885b..51f49fc9 100644
--- a/articles/erlanger-playbook/index.html
+++ b/articles/erlanger-playbook/index.html
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-    
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+	</head>
 
 
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-    
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+	</head>
 
 
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diff --git a/articles/github-sponsors/index.html b/articles/github-sponsors/index.html
index e1a68111..697d4a47 100644
--- a/articles/github-sponsors/index.html
+++ b/articles/github-sponsors/index.html
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-    
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+	</head>
 
 
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index 8dd1349e..44a60f9c 100644
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+++ b/articles/gun-1.0.0-rc.1/index.html
@@ -17,8 +17,7 @@
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-    
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+	</head>
 
 
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diff --git a/articles/gun-1.0.0/index.html b/articles/gun-1.0.0/index.html
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-    
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diff --git a/articles/gun-1.2.0/index.html b/articles/gun-1.2.0/index.html
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+++ b/articles/gun-1.2.0/index.html
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-    
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diff --git a/articles/gun-1.3.0/index.html b/articles/gun-1.3.0/index.html
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--- a/articles/gun-1.3.0/index.html
+++ b/articles/gun-1.3.0/index.html
@@ -17,8 +17,7 @@
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-    
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@@ -17,8 +17,7 @@
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-    
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+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.11/manual/cow_cookie.cookie/index.html b/docs/en/cowlib/2.11/manual/cow_cookie.cookie/index.html
index a1cacbad..50e13bf9 100644
--- a/docs/en/cowlib/2.11/manual/cow_cookie.cookie/index.html
+++ b/docs/en/cowlib/2.11/manual/cow_cookie.cookie/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -128,6 +127,8 @@ http://www.gnu.org/software/src-highlite -->
 	
 	
 	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.11/manual/cow_cookie.parse_cookie/index.html b/docs/en/cowlib/2.11/manual/cow_cookie.parse_cookie/index.html
index 638401a5..d7934f95 100644
--- a/docs/en/cowlib/2.11/manual/cow_cookie.parse_cookie/index.html
+++ b/docs/en/cowlib/2.11/manual/cow_cookie.parse_cookie/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -130,6 +129,8 @@ http://www.gnu.org/software/src-highlite -->
 	
 	
 	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.11/manual/cow_cookie.parse_set_cookie/index.html b/docs/en/cowlib/2.11/manual/cow_cookie.parse_set_cookie/index.html
index 6bc4ff21..55fa7054 100644
--- a/docs/en/cowlib/2.11/manual/cow_cookie.parse_set_cookie/index.html
+++ b/docs/en/cowlib/2.11/manual/cow_cookie.parse_set_cookie/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -137,6 +136,8 @@ http://www.gnu.org/software/src-highlite -->
 	
 	
 	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.11/manual/cow_cookie.setcookie/index.html b/docs/en/cowlib/2.11/manual/cow_cookie.setcookie/index.html
index 6fc5ede5..9341c205 100644
--- a/docs/en/cowlib/2.11/manual/cow_cookie.setcookie/index.html
+++ b/docs/en/cowlib/2.11/manual/cow_cookie.setcookie/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -138,6 +137,8 @@ http://www.gnu.org/software/src-highlite -->
 	
 	
 	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.11/manual/cow_cookie/index.html b/docs/en/cowlib/2.11/manual/cow_cookie/index.html
index 4c463ba3..159e7beb 100644
--- a/docs/en/cowlib/2.11/manual/cow_cookie/index.html
+++ b/docs/en/cowlib/2.11/manual/cow_cookie/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -172,6 +171,8 @@ http://www.gnu.org/software/src-highlite -->
 	
 	
 	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.11/manual/cowlib_app/index.html b/docs/en/cowlib/2.11/manual/cowlib_app/index.html
index 3dcb6019..40f8e4f7 100644
--- a/docs/en/cowlib/2.11/manual/cowlib_app/index.html
+++ b/docs/en/cowlib/2.11/manual/cowlib_app/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -119,6 +118,8 @@ http://www.gnu.org/software/src-highlite -->
 	
 	
 	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.11/manual/index.html b/docs/en/cowlib/2.11/manual/index.html
index 86854efa..59e6fd0e 100644
--- a/docs/en/cowlib/2.11/manual/index.html
+++ b/docs/en/cowlib/2.11/manual/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -119,6 +118,8 @@ http://www.gnu.org/software/src-highlite -->
 	
 	
 	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
 		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
 	
 		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
diff --git a/docs/en/cowlib/2.12/manual/cow_cookie.cookie/index.html b/docs/en/cowlib/2.12/manual/cow_cookie.cookie/index.html
new file mode 100644
index 00000000..3904769f
--- /dev/null
+++ b/docs/en/cowlib/2.12/manual/cow_cookie.cookie/index.html
@@ -0,0 +1,187 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="">
+    <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara">
+
+    <title>Nine Nines: cow_cookie:cookie(3)</title>
+
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
+    <link href="/css/99s.css?r=7" rel="stylesheet">
+
+    <link rel="shortcut icon" href="/img/ico/favicon.ico">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
+    <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
+
+	</head>
+
+
+<body class="">
+  <header id="page-head">
+    <div id="topbar" class="container">
+        <div class="row">
+          <div class="span2">
+            <h1 id="logo"><a href="/" title="99s">99s</a></h1>
+          </div>
+          <div class="span10">
+            
+            <div id="side-header">
+              <nav>
+                <ul>
+                  <li><a title="Hear my thoughts" href="/articles">Articles</a></li>
+  				  <li><a title="Watch my talks" href="/talks">Talks</a></li>
+  				  <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li>
+  				  <li><a title="Request my services" href="/services">Consulting & Training</a></li>
+                </ul>
+              </nav> 
+              <ul id="social">
+                <li>
+                  <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a>
+                </li>
+                    <li>
+						<a title="Contact me" href="mailto:contact@ninenines.eu"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a>
+					</li>
+              </ul>
+            </div>
+          </div>
+        </div>
+    </div>
+
+
+</header>
+
+<div id="contents" class="two_col">
+<div class="container">
+<div class="row">
+<div id="docs" class="span9 maincol">
+
+<h1 class="lined-header"><span>cow_cookie:cookie(3)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cow_cookie:cookie - Generate a cookie header</p>
+<h2 id="_description">Description</h2>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">cookie</font></b>(<font color="#009900">Cookies</font>) <font color="#990000">-&gt;</font> <b><font color="#000000">iolist</font></b>()
+
+<font color="#009900">Cookies</font> <font color="#990000">::</font> [{<font color="#009900">Name</font> <font color="#990000">::</font> <b><font color="#000000">iodata</font></b>(), <font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000000">iodata</font></b>()}]</tt></pre>
+</div></div>
+<p>Generate a cookie header.</p>
+<h2 id="_arguments">Arguments</h2>
+<dl><dt>Cookies</dt>
+<dd><p>A list of pairs of cookie name and value.</p>
+</dd>
+</dl>
+<h2 id="_return_value">Return value</h2>
+<p>An iolist with the generated cookie header value.</p>
+<h2 id="_changelog">Changelog</h2>
+<ul><li><strong>2.9</strong>: Function introduced.
+</li>
+</ul>
+<h2 id="_examples">Examples</h2>
+<div class="listingblock"><div class="title">Generate a cookie header</div>
+<div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><font color="#009900">Cookie</font> <font color="#990000">=</font> <b><font color="#000000">cow_cookie:cookie</font></b>([{<font color="#990000">&lt;&lt;</font><font color="#FF0000">"sessionid"</font><font color="#990000">&gt;&gt;</font>, <font color="#009900">ID</font>}])<font color="#990000">.</font></tt></pre>
+</div></div>
+<h2 id="_see_also">See also</h2>
+<p><a href="../cow_cookie">cow_cookie(3)</a>, <a href="../cow_cookie.parse_cookie">cow_cookie:parse_cookie(3)</a>, <a href="../cow_cookie.parse_set_cookie">cow_cookie:parse_set_cookie(3)</a>, <a href="../cow_cookie.setcookie">cow_cookie:setcookie(3)</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
+
+
+<h3>
+	Cowlib
+	2.12
+	Function Reference
+	
+</h3>
+
+<ul>
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">Function Reference</a></li>
+	
+	
+</ul>
+
+<h4 id="docs-nav">Navigation</h4>
+
+<h4>Version select</h4>
+<ul>
+	
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.9/manual">2.9</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.8/manual">2.8</a></li>
+	
+</ul>
+
+<h3 id="_like_my_work__donate">Like my work? Donate!</h3>
+<p>Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:</p>
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" style="display:inline">
+<input type="hidden" name="cmd" value="_donations">
+<input type="hidden" name="business" value="essen@ninenines.eu">
+<input type="hidden" name="lc" value="FR">
+<input type="hidden" name="item_name" value="Loic Hoguin">
+<input type="hidden" name="item_number" value="99s">
+<input type="hidden" name="currency_code" value="EUR">
+<input type="hidden" name="bn" value="PP-DonationsBF:btn_donate_LG.gif:NonHosted">
+<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
+<img alt="" border="0" src="https://www.paypalobjects.com/fr_FR/i/scr/pixel.gif" width="1" height="1">
+</form><p>Recurring payment options are also available via <a href="https://github.com/sponsors/essen">GitHub Sponsors</a>. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.</p>
+
+
+
+</div>
+</div>
+</div>
+</div>
+
+      <footer>
+        <div class="container">
+          <div class="row">
+            <div class="span6">
+              <p id="scroll-top"><a href="#">↑ Scroll to top</a></p>
+              <nav>
+                <ul>
+                  <li><a href="mailto:contact@ninenines.eu" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li>
+                </ul>
+              </nav>
+            </div>
+            <div class="span6 credits">
+               <p><img src="/img/footer_logo.png"></p>
+               <p>Copyright &copy; Loïc Hoguin 2012-2018</p>
+            </div>
+          </div>
+        </div>
+      </footer>
+
+    
+    <script src="/js/custom.js"></script>
+  </body>
+</html>
+
+
diff --git a/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/index.html b/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/index.html
new file mode 100644
index 00000000..25699177
--- /dev/null
+++ b/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/index.html
@@ -0,0 +1,189 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="">
+    <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara">
+
+    <title>Nine Nines: cow_cookie:parse_cookie(3)</title>
+
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
+    <link href="/css/99s.css?r=7" rel="stylesheet">
+
+    <link rel="shortcut icon" href="/img/ico/favicon.ico">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
+    <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
+
+	</head>
+
+
+<body class="">
+  <header id="page-head">
+    <div id="topbar" class="container">
+        <div class="row">
+          <div class="span2">
+            <h1 id="logo"><a href="/" title="99s">99s</a></h1>
+          </div>
+          <div class="span10">
+            
+            <div id="side-header">
+              <nav>
+                <ul>
+                  <li><a title="Hear my thoughts" href="/articles">Articles</a></li>
+  				  <li><a title="Watch my talks" href="/talks">Talks</a></li>
+  				  <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li>
+  				  <li><a title="Request my services" href="/services">Consulting & Training</a></li>
+                </ul>
+              </nav> 
+              <ul id="social">
+                <li>
+                  <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a>
+                </li>
+                    <li>
+						<a title="Contact me" href="mailto:contact@ninenines.eu"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a>
+					</li>
+              </ul>
+            </div>
+          </div>
+        </div>
+    </div>
+
+
+</header>
+
+<div id="contents" class="two_col">
+<div class="container">
+<div class="row">
+<div id="docs" class="span9 maincol">
+
+<h1 class="lined-header"><span>cow_cookie:parse_cookie(3)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cow_cookie:parse_cookie - Parse a cookie header</p>
+<h2 id="_description">Description</h2>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">parse_cookie</font></b>(<font color="#009900">Cookie</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>())
+    <font color="#990000">-&gt;</font> [{<b><font color="#000080">binary</font></b>(), <b><font color="#000080">binary</font></b>()}]</tt></pre>
+</div></div>
+<p>Parse a cookie header.</p>
+<h2 id="_arguments">Arguments</h2>
+<dl><dt>Cookie</dt>
+<dd><p>The cookie header value.</p>
+</dd>
+</dl>
+<h2 id="_return_value">Return value</h2>
+<p>A list of cookie name/value pairs is returned on success.</p>
+<p>An exception is thrown in the event of a parse error.</p>
+<h2 id="_changelog">Changelog</h2>
+<ul><li><strong>2.9</strong>: Fixes to the parser may lead to potential incompatibilities. A cookie name starting with <code>$</code> is no longer ignored. A cookie without a <code>=</code> will be parsed as the value of the cookie named <code>&lt;&lt;&gt;&gt;</code> (empty name).
+</li>
+<li><strong>1.0</strong>: Function introduced.
+</li>
+</ul>
+<h2 id="_examples">Examples</h2>
+<div class="listingblock"><div class="title">Parse a cookie header</div>
+<div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><font color="#009900">Cookies</font> <font color="#990000">=</font> <b><font color="#000000">cow_cookie:parse_cookie</font></b>(<font color="#009900">CookieHd</font>)<font color="#990000">.</font></tt></pre>
+</div></div>
+<h2 id="_see_also">See also</h2>
+<p><a href="../cow_cookie">cow_cookie(3)</a>, <a href="../cow_cookie.parse_set_cookie">cow_cookie:parse_set_cookie(3)</a>, <a href="../cow_cookie.cookie">cow_cookie:cookie(3)</a>, <a href="../cow_cookie.setcookie">cow_cookie:setcookie(3)</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
+
+
+<h3>
+	Cowlib
+	2.12
+	Function Reference
+	
+</h3>
+
+<ul>
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">Function Reference</a></li>
+	
+	
+</ul>
+
+<h4 id="docs-nav">Navigation</h4>
+
+<h4>Version select</h4>
+<ul>
+	
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.9/manual">2.9</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.8/manual">2.8</a></li>
+	
+</ul>
+
+<h3 id="_like_my_work__donate">Like my work? Donate!</h3>
+<p>Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:</p>
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" style="display:inline">
+<input type="hidden" name="cmd" value="_donations">
+<input type="hidden" name="business" value="essen@ninenines.eu">
+<input type="hidden" name="lc" value="FR">
+<input type="hidden" name="item_name" value="Loic Hoguin">
+<input type="hidden" name="item_number" value="99s">
+<input type="hidden" name="currency_code" value="EUR">
+<input type="hidden" name="bn" value="PP-DonationsBF:btn_donate_LG.gif:NonHosted">
+<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
+<img alt="" border="0" src="https://www.paypalobjects.com/fr_FR/i/scr/pixel.gif" width="1" height="1">
+</form><p>Recurring payment options are also available via <a href="https://github.com/sponsors/essen">GitHub Sponsors</a>. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.</p>
+
+
+
+</div>
+</div>
+</div>
+</div>
+
+      <footer>
+        <div class="container">
+          <div class="row">
+            <div class="span6">
+              <p id="scroll-top"><a href="#">↑ Scroll to top</a></p>
+              <nav>
+                <ul>
+                  <li><a href="mailto:contact@ninenines.eu" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li>
+                </ul>
+              </nav>
+            </div>
+            <div class="span6 credits">
+               <p><img src="/img/footer_logo.png"></p>
+               <p>Copyright &copy; Loïc Hoguin 2012-2018</p>
+            </div>
+          </div>
+        </div>
+      </footer>
+
+    
+    <script src="/js/custom.js"></script>
+  </body>
+</html>
+
+
diff --git a/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/index.html b/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/index.html
new file mode 100644
index 00000000..352b4870
--- /dev/null
+++ b/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/index.html
@@ -0,0 +1,196 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="">
+    <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara">
+
+    <title>Nine Nines: cow_cookie:parse_set_cookie(3)</title>
+
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
+    <link href="/css/99s.css?r=7" rel="stylesheet">
+
+    <link rel="shortcut icon" href="/img/ico/favicon.ico">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
+    <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
+
+	</head>
+
+
+<body class="">
+  <header id="page-head">
+    <div id="topbar" class="container">
+        <div class="row">
+          <div class="span2">
+            <h1 id="logo"><a href="/" title="99s">99s</a></h1>
+          </div>
+          <div class="span10">
+            
+            <div id="side-header">
+              <nav>
+                <ul>
+                  <li><a title="Hear my thoughts" href="/articles">Articles</a></li>
+  				  <li><a title="Watch my talks" href="/talks">Talks</a></li>
+  				  <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li>
+  				  <li><a title="Request my services" href="/services">Consulting & Training</a></li>
+                </ul>
+              </nav> 
+              <ul id="social">
+                <li>
+                  <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a>
+                </li>
+                    <li>
+						<a title="Contact me" href="mailto:contact@ninenines.eu"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a>
+					</li>
+              </ul>
+            </div>
+          </div>
+        </div>
+    </div>
+
+
+</header>
+
+<div id="contents" class="two_col">
+<div class="container">
+<div class="row">
+<div id="docs" class="span9 maincol">
+
+<h1 class="lined-header"><span>cow_cookie:parse_set_cookie(3)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cow_cookie:parse_set_cookie - Parse a set-cookie header</p>
+<h2 id="_description">Description</h2>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">parse_set_cookie</font></b>(<font color="#009900">SetCookie</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>())
+    <font color="#990000">-&gt;</font> {<font color="#FF6600">ok</font>, <font color="#009900">Name</font>, <font color="#009900">Value</font>, <font color="#009900">Attrs</font>} | <font color="#FF6600">ignore</font>
+
+<font color="#009900">Name</font>  <font color="#990000">::</font> <b><font color="#000080">binary</font></b>()
+<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>()
+<font color="#009900">Attrs</font> <font color="#990000">::</font> <b><font color="#000000">cow_cookie:cookie_attrs</font></b>()</tt></pre>
+</div></div>
+<p>Parse a set-cookie header.</p>
+<h2 id="_arguments">Arguments</h2>
+<dl><dt>SetCookie</dt>
+<dd><p>The set-cookie header value.</p>
+</dd>
+</dl>
+<h2 id="_return_value">Return value</h2>
+<p>An <code>ok</code> tuple with the cookie name, value and attributes is returned on success.</p>
+<p>An atom <code>ignore</code> is returned when the cookie has both an empty name and an empty value, and must be ignored.</p>
+<h2 id="_changelog">Changelog</h2>
+<ul><li><strong>2.9</strong>: Function introduced.
+</li>
+</ul>
+<h2 id="_examples">Examples</h2>
+<div class="listingblock"><div class="title">Parse a cookie header</div>
+<div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#0000FF">case</font></b> <b><font color="#000000">cow_cookie:parse_set_cookie</font></b>(<font color="#009900">SetCookieHd</font>) <b><font color="#0000FF">of</font></b>
+    {<font color="#FF6600">ok</font>, <font color="#009900">Name</font>, <font color="#009900">Value</font>, <font color="#009900">Attrs</font>} <font color="#990000">-&gt;</font>
+        <b><font color="#000000">cookie_engine_set_cookie</font></b>(<font color="#009900">Name</font>, <font color="#009900">Value</font>, <font color="#009900">Attrs</font>);
+    <font color="#FF6600">ignore</font> <font color="#990000">-&gt;</font>
+        <b><font color="#000000">do_nothing</font></b>()
+<b><font color="#0000FF">end</font></b><font color="#990000">.</font></tt></pre>
+</div></div>
+<h2 id="_see_also">See also</h2>
+<p><a href="../cow_cookie">cow_cookie(3)</a>, <a href="../cow_cookie.parse_cookie">cow_cookie:parse_cookie(3)</a>, <a href="../cow_cookie.cookie">cow_cookie:cookie(3)</a>, <a href="../cow_cookie.setcookie">cow_cookie:setcookie(3)</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
+
+
+<h3>
+	Cowlib
+	2.12
+	Function Reference
+	
+</h3>
+
+<ul>
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">Function Reference</a></li>
+	
+	
+</ul>
+
+<h4 id="docs-nav">Navigation</h4>
+
+<h4>Version select</h4>
+<ul>
+	
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.9/manual">2.9</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.8/manual">2.8</a></li>
+	
+</ul>
+
+<h3 id="_like_my_work__donate">Like my work? Donate!</h3>
+<p>Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:</p>
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" style="display:inline">
+<input type="hidden" name="cmd" value="_donations">
+<input type="hidden" name="business" value="essen@ninenines.eu">
+<input type="hidden" name="lc" value="FR">
+<input type="hidden" name="item_name" value="Loic Hoguin">
+<input type="hidden" name="item_number" value="99s">
+<input type="hidden" name="currency_code" value="EUR">
+<input type="hidden" name="bn" value="PP-DonationsBF:btn_donate_LG.gif:NonHosted">
+<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
+<img alt="" border="0" src="https://www.paypalobjects.com/fr_FR/i/scr/pixel.gif" width="1" height="1">
+</form><p>Recurring payment options are also available via <a href="https://github.com/sponsors/essen">GitHub Sponsors</a>. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.</p>
+
+
+
+</div>
+</div>
+</div>
+</div>
+
+      <footer>
+        <div class="container">
+          <div class="row">
+            <div class="span6">
+              <p id="scroll-top"><a href="#">↑ Scroll to top</a></p>
+              <nav>
+                <ul>
+                  <li><a href="mailto:contact@ninenines.eu" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li>
+                </ul>
+              </nav>
+            </div>
+            <div class="span6 credits">
+               <p><img src="/img/footer_logo.png"></p>
+               <p>Copyright &copy; Loïc Hoguin 2012-2018</p>
+            </div>
+          </div>
+        </div>
+      </footer>
+
+    
+    <script src="/js/custom.js"></script>
+  </body>
+</html>
+
+
diff --git a/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/index.html b/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/index.html
new file mode 100644
index 00000000..7594d4bb
--- /dev/null
+++ b/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/index.html
@@ -0,0 +1,199 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="">
+    <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara">
+
+    <title>Nine Nines: cow_cookie:setcookie(3)</title>
+
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
+    <link href="/css/99s.css?r=7" rel="stylesheet">
+
+    <link rel="shortcut icon" href="/img/ico/favicon.ico">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
+    <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
+
+	</head>
+
+
+<body class="">
+  <header id="page-head">
+    <div id="topbar" class="container">
+        <div class="row">
+          <div class="span2">
+            <h1 id="logo"><a href="/" title="99s">99s</a></h1>
+          </div>
+          <div class="span10">
+            
+            <div id="side-header">
+              <nav>
+                <ul>
+                  <li><a title="Hear my thoughts" href="/articles">Articles</a></li>
+  				  <li><a title="Watch my talks" href="/talks">Talks</a></li>
+  				  <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li>
+  				  <li><a title="Request my services" href="/services">Consulting & Training</a></li>
+                </ul>
+              </nav> 
+              <ul id="social">
+                <li>
+                  <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a>
+                </li>
+                    <li>
+						<a title="Contact me" href="mailto:contact@ninenines.eu"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a>
+					</li>
+              </ul>
+            </div>
+          </div>
+        </div>
+    </div>
+
+
+</header>
+
+<div id="contents" class="two_col">
+<div class="container">
+<div class="row">
+<div id="docs" class="span9 maincol">
+
+<h1 class="lined-header"><span>cow_cookie:setcookie(3)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cow_cookie:setcookie - Generate a set-cookie header</p>
+<h2 id="_description">Description</h2>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">setcookie</font></b>(<font color="#009900">Name</font>  <font color="#990000">::</font> <b><font color="#000000">iodata</font></b>(),
+          <font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000000">iodata</font></b>(),
+          <font color="#009900">Opts</font>  <font color="#990000">::</font> <b><font color="#000000">cow_cookie:cookie_opts</font></b>())
+    <font color="#990000">-&gt;</font> <b><font color="#000000">iolist</font></b>()</tt></pre>
+</div></div>
+<p>Generate a set-cookie header.</p>
+<h2 id="_arguments">Arguments</h2>
+<dl><dt>Name</dt>
+<dd><p>Cookie name.</p>
+</dd>
+<dt>Value</dt>
+<dd><p>Cookie value.</p>
+</dd>
+<dt>Opts</dt>
+<dd><p>Options added to the set-cookie header as attributes.</p>
+</dd>
+</dl>
+<h2 id="_return_value">Return value</h2>
+<p>An iolist with the generated set-cookie header value.</p>
+<h2 id="_changelog">Changelog</h2>
+<ul><li><strong>2.12</strong>: The <code>Version</code> attribute is no longer generated.
+</li>
+<li><strong>1.0</strong>: Function introduced.
+</li>
+</ul>
+<h2 id="_examples">Examples</h2>
+<div class="listingblock"><div class="title">Generate a set-cookie header</div>
+<div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><font color="#009900">SetCookie</font> <font color="#990000">=</font> <b><font color="#000000">cow_cookie:setcookie</font></b>(<font color="#990000">&lt;&lt;</font><font color="#FF0000">"sessionid"</font><font color="#990000">&gt;&gt;</font>, <font color="#009900">ID</font>, #{
+    <font color="#0000FF">http_only</font> <font color="#990000">=&gt;</font> <font color="#000080">true</font>,
+    <font color="#0000FF">secure</font>    <font color="#990000">=&gt;</font> <font color="#000080">true</font>
+})<font color="#990000">.</font></tt></pre>
+</div></div>
+<h2 id="_see_also">See also</h2>
+<p><a href="../cow_cookie">cow_cookie(3)</a>, <a href="../cow_cookie.parse_cookie">cow_cookie:parse_cookie(3)</a>, <a href="../cow_cookie.parse_set_cookie">cow_cookie:parse_set_cookie(3)</a>, <a href="../cow_cookie.cookie">cow_cookie:cookie(3)</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
+
+
+<h3>
+	Cowlib
+	2.12
+	Function Reference
+	
+</h3>
+
+<ul>
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">Function Reference</a></li>
+	
+	
+</ul>
+
+<h4 id="docs-nav">Navigation</h4>
+
+<h4>Version select</h4>
+<ul>
+	
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.9/manual">2.9</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.8/manual">2.8</a></li>
+	
+</ul>
+
+<h3 id="_like_my_work__donate">Like my work? Donate!</h3>
+<p>Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:</p>
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" style="display:inline">
+<input type="hidden" name="cmd" value="_donations">
+<input type="hidden" name="business" value="essen@ninenines.eu">
+<input type="hidden" name="lc" value="FR">
+<input type="hidden" name="item_name" value="Loic Hoguin">
+<input type="hidden" name="item_number" value="99s">
+<input type="hidden" name="currency_code" value="EUR">
+<input type="hidden" name="bn" value="PP-DonationsBF:btn_donate_LG.gif:NonHosted">
+<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
+<img alt="" border="0" src="https://www.paypalobjects.com/fr_FR/i/scr/pixel.gif" width="1" height="1">
+</form><p>Recurring payment options are also available via <a href="https://github.com/sponsors/essen">GitHub Sponsors</a>. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.</p>
+
+
+
+</div>
+</div>
+</div>
+</div>
+
+      <footer>
+        <div class="container">
+          <div class="row">
+            <div class="span6">
+              <p id="scroll-top"><a href="#">↑ Scroll to top</a></p>
+              <nav>
+                <ul>
+                  <li><a href="mailto:contact@ninenines.eu" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li>
+                </ul>
+              </nav>
+            </div>
+            <div class="span6 credits">
+               <p><img src="/img/footer_logo.png"></p>
+               <p>Copyright &copy; Loïc Hoguin 2012-2018</p>
+            </div>
+          </div>
+        </div>
+      </footer>
+
+    
+    <script src="/js/custom.js"></script>
+  </body>
+</html>
+
+
diff --git a/docs/en/cowlib/2.12/manual/cow_cookie/index.html b/docs/en/cowlib/2.12/manual/cow_cookie/index.html
new file mode 100644
index 00000000..0bef329c
--- /dev/null
+++ b/docs/en/cowlib/2.12/manual/cow_cookie/index.html
@@ -0,0 +1,233 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="">
+    <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara">
+
+    <title>Nine Nines: cow_cookie(3)</title>
+
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
+    <link href="/css/99s.css?r=7" rel="stylesheet">
+
+    <link rel="shortcut icon" href="/img/ico/favicon.ico">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
+    <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
+
+	</head>
+
+
+<body class="">
+  <header id="page-head">
+    <div id="topbar" class="container">
+        <div class="row">
+          <div class="span2">
+            <h1 id="logo"><a href="/" title="99s">99s</a></h1>
+          </div>
+          <div class="span10">
+            
+            <div id="side-header">
+              <nav>
+                <ul>
+                  <li><a title="Hear my thoughts" href="/articles">Articles</a></li>
+  				  <li><a title="Watch my talks" href="/talks">Talks</a></li>
+  				  <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li>
+  				  <li><a title="Request my services" href="/services">Consulting & Training</a></li>
+                </ul>
+              </nav> 
+              <ul id="social">
+                <li>
+                  <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a>
+                </li>
+                    <li>
+						<a title="Contact me" href="mailto:contact@ninenines.eu"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a>
+					</li>
+              </ul>
+            </div>
+          </div>
+        </div>
+    </div>
+
+
+</header>
+
+<div id="contents" class="two_col">
+<div class="container">
+<div class="row">
+<div id="docs" class="span9 maincol">
+
+<h1 class="lined-header"><span>cow_cookie(3)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cow_cookie - Cookies</p>
+<h2 id="_description">Description</h2>
+<p>The module <code>cow_cookie</code> provides functions for parsing and manipulating cookie headers.</p>
+<h2 id="_exports">Exports</h2>
+<ul><li><a href="../cow_cookie.parse_cookie">cow_cookie:parse_cookie(3)</a> - Parse a cookie header
+</li>
+<li><a href="../cow_cookie.parse_set_cookie">cow_cookie:parse_set_cookie(3)</a> - Parse a set-cookie header
+</li>
+<li><a href="../cow_cookie.cookie">cow_cookie:cookie(3)</a> - Generate a cookie header
+</li>
+<li><a href="../cow_cookie.setcookie">cow_cookie:setcookie(3)</a> - Generate a set-cookie header
+</li>
+</ul>
+<h2 id="_types">Types</h2>
+<h3 id="_cookie_attrs">cookie_attrs()</h3>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">cookie_attrs</font></b>() <font color="#990000">::</font> #{
+    <font color="#0000FF">expires</font> <font color="#990000">=&gt;</font> <b><font color="#000000">calendar:datetime</font></b>(),
+    <font color="#0000FF">max_age</font> <font color="#990000">=&gt;</font> <b><font color="#000000">calendar:datetime</font></b>(),
+    <font color="#0000FF">domain</font> <font color="#990000">=&gt;</font> <b><font color="#000080">binary</font></b>(),
+    <font color="#0000FF">path</font> <font color="#990000">=&gt;</font> <b><font color="#000080">binary</font></b>(),
+    <font color="#0000FF">secure</font> <font color="#990000">=&gt;</font> <font color="#000080">true</font>,
+    <font color="#0000FF">http_only</font> <font color="#990000">=&gt;</font> <font color="#000080">true</font>,
+    <font color="#0000FF">same_site</font> <font color="#990000">=&gt;</font> <font color="#FF6600">default</font> | <font color="#FF6600">none</font> | <font color="#FF6600">strict</font> | <font color="#FF6600">lax</font>
+}</tt></pre>
+</div></div>
+<p>Cookie attributes parsed from the set-cookie header. The attributes must be passed as-is to a cookie store engine for processing, along with the cookie name and value. More information about the attributes can be found in <a href="https://tools.ietf.org/html/rfc6265">RFC 6265</a>.</p>
+<h3 id="_cookie_opts">cookie_opts()</h3>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">cookie_opts</font></b>() <font color="#990000">::</font> #{
+    <font color="#0000FF">domain</font>    <font color="#990000">=&gt;</font> <b><font color="#000080">binary</font></b>(),
+    <font color="#0000FF">http_only</font> <font color="#990000">=&gt;</font> <b><font color="#000000">boolean</font></b>(),
+    <font color="#0000FF">max_age</font>   <font color="#990000">=&gt;</font> <b><font color="#000000">non_neg_integer</font></b>(),
+    <font color="#0000FF">path</font>      <font color="#990000">=&gt;</font> <b><font color="#000080">binary</font></b>(),
+    <font color="#0000FF">same_site</font> <font color="#990000">=&gt;</font> <font color="#FF6600">default</font> | <font color="#FF6600">none</font> | <font color="#FF6600">strict</font> | <font color="#FF6600">lax</font>,
+    <font color="#0000FF">secure</font>    <font color="#990000">=&gt;</font> <b><font color="#000000">boolean</font></b>()
+}</tt></pre>
+</div></div>
+<p>Options for the set-cookie header. They are added to the header as attributes. More information about the options can be found in <a href="https://tools.ietf.org/html/rfc6265">RFC 6265</a>.</p>
+<p>The following options are defined:</p>
+<dl><dt>domain</dt>
+<dd><p>Hosts to which the cookie will be sent. By default it will only be sent to the origin server.</p>
+</dd>
+<dt>http_only</dt>
+<dd><p>Whether the cookie should be restricted to HTTP requests, or it should also be exposed to other APIs, for example Javascript. By default there are no restrictions.</p>
+</dd>
+<dt>max_age</dt>
+<dd><p>Maximum lifetime of the cookie, in seconds. By default the cookie is kept for the duration of the session.</p>
+</dd>
+<dt>path</dt>
+<dd><p>Path to which the cookie will be sent. By default it will be sent to the current &quot;directory&quot; of the effective request URI.</p>
+</dd>
+<dt>same_site</dt>
+<dd><p>Whether the cookie should be sent along with cross-site requests. This attribute is currently non-standard but is in the process of being standardized. Please refer to the <a href="https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-03#section-4.1.2.7">RFC 6265 (bis) draft</a> for details.</p>
+<p>The default value for this attribute may vary depending on user agent and configuration. Browsers are known to be more strict over TCP compared to TLS.</p>
+</dd>
+<dt>secure</dt>
+<dd><p>Whether the cookie should be sent only on secure channels (for example TLS). Note that this does not guarantee the integrity of the cookie, only its confidentiality during transfer. By default there are no restrictions.</p>
+</dd>
+</dl>
+<h2 id="_changelog">Changelog</h2>
+<ul><li><strong>2.12</strong>: The <code>same_site</code> attribute and option may now be set to <code>default</code>.
+</li>
+<li><strong>2.10</strong>: The <code>same_site</code> attribute and option may now be set to <code>none</code>.
+</li>
+<li><strong>2.9</strong>: The <code>cookie_attrs</code> type was added.
+</li>
+<li><strong>1.0</strong>: Module introduced.
+</li>
+</ul>
+<h2 id="_see_also">See also</h2>
+<p><a href="..">cowlib(7)</a>, <a href="https://tools.ietf.org/html/rfc6265">RFC 6265</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
+
+
+<h3>
+	Cowlib
+	2.12
+	Function Reference
+	
+</h3>
+
+<ul>
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">Function Reference</a></li>
+	
+	
+</ul>
+
+<h4 id="docs-nav">Navigation</h4>
+
+<h4>Version select</h4>
+<ul>
+	
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.9/manual">2.9</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.8/manual">2.8</a></li>
+	
+</ul>
+
+<h3 id="_like_my_work__donate">Like my work? Donate!</h3>
+<p>Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:</p>
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" style="display:inline">
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+</form><p>Recurring payment options are also available via <a href="https://github.com/sponsors/essen">GitHub Sponsors</a>. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.</p>
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+                </ul>
+              </nav>
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+
+    
+    <script src="/js/custom.js"></script>
+  </body>
+</html>
+
+
diff --git a/docs/en/cowlib/2.12/manual/cowlib_app/index.html b/docs/en/cowlib/2.12/manual/cowlib_app/index.html
new file mode 100644
index 00000000..f9f38f34
--- /dev/null
+++ b/docs/en/cowlib/2.12/manual/cowlib_app/index.html
@@ -0,0 +1,178 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="">
+    <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara">
+
+    <title>Nine Nines: cowlib(7)</title>
+
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
+    <link href="/css/99s.css?r=7" rel="stylesheet">
+
+    <link rel="shortcut icon" href="/img/ico/favicon.ico">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
+    <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
+
+	</head>
+
+
+<body class="">
+  <header id="page-head">
+    <div id="topbar" class="container">
+        <div class="row">
+          <div class="span2">
+            <h1 id="logo"><a href="/" title="99s">99s</a></h1>
+          </div>
+          <div class="span10">
+            
+            <div id="side-header">
+              <nav>
+                <ul>
+                  <li><a title="Hear my thoughts" href="/articles">Articles</a></li>
+  				  <li><a title="Watch my talks" href="/talks">Talks</a></li>
+  				  <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li>
+  				  <li><a title="Request my services" href="/services">Consulting & Training</a></li>
+                </ul>
+              </nav> 
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+                  <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a>
+                </li>
+                    <li>
+						<a title="Contact me" href="mailto:contact@ninenines.eu"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a>
+					</li>
+              </ul>
+            </div>
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+    </div>
+
+
+</header>
+
+<div id="contents" class="two_col">
+<div class="container">
+<div class="row">
+<div id="docs" class="span9 maincol">
+
+<h1 class="lined-header"><span>cowlib(7)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cowlib - Support library for manipulating Web protocols</p>
+<h2 id="_description">Description</h2>
+<p>Cowlib provides libraries for parsing and building messages for various Web protocols, including HTTP/1.1, HTTP/2  and Websocket.</p>
+<p>It is optimized for completeness rather than speed. No value is ignored, they are all returned.</p>
+<h2 id="_modules">Modules</h2>
+<ul><li><a href="../cow_cookie">cow_cookie(3)</a> - Cookies
+</li>
+</ul>
+<h2 id="_dependencies">Dependencies</h2>
+<ul><li>crypto - Crypto functions
+</li>
+</ul>
+<p>All these applications must be started before the <code>cowlib</code> application. To start Cowlib and all dependencies at once:</p>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt>{<font color="#FF6600">ok</font>, <font color="#990000">_</font>} <font color="#990000">=</font> <b><font color="#000000">application:ensure_all_started</font></b>(<font color="#FF6600">cowlib</font>)<font color="#990000">.</font></tt></pre>
+</div></div>
+<h2 id="_environment">Environment</h2>
+<p>The <code>cowlib</code> application does not define any application environment configuration parameters.</p>
+<h2 id="_see_also">See also</h2>
+<p><a href="../cowboy">cowboy(7)</a>, <a href="../gun">gun(7)</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
+
+
+<h3>
+	Cowlib
+	2.12
+	Function Reference
+	
+</h3>
+
+<ul>
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">Function Reference</a></li>
+	
+	
+</ul>
+
+<h4 id="docs-nav">Navigation</h4>
+
+<h4>Version select</h4>
+<ul>
+	
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.9/manual">2.9</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.8/manual">2.8</a></li>
+	
+</ul>
+
+<h3 id="_like_my_work__donate">Like my work? Donate!</h3>
+<p>Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:</p>
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" style="display:inline">
+<input type="hidden" name="cmd" value="_donations">
+<input type="hidden" name="business" value="essen@ninenines.eu">
+<input type="hidden" name="lc" value="FR">
+<input type="hidden" name="item_name" value="Loic Hoguin">
+<input type="hidden" name="item_number" value="99s">
+<input type="hidden" name="currency_code" value="EUR">
+<input type="hidden" name="bn" value="PP-DonationsBF:btn_donate_LG.gif:NonHosted">
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+<img alt="" border="0" src="https://www.paypalobjects.com/fr_FR/i/scr/pixel.gif" width="1" height="1">
+</form><p>Recurring payment options are also available via <a href="https://github.com/sponsors/essen">GitHub Sponsors</a>. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.</p>
+
+
+
+</div>
+</div>
+</div>
+</div>
+
+      <footer>
+        <div class="container">
+          <div class="row">
+            <div class="span6">
+              <p id="scroll-top"><a href="#">↑ Scroll to top</a></p>
+              <nav>
+                <ul>
+                  <li><a href="mailto:contact@ninenines.eu" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li>
+                </ul>
+              </nav>
+            </div>
+            <div class="span6 credits">
+               <p><img src="/img/footer_logo.png"></p>
+               <p>Copyright &copy; Loïc Hoguin 2012-2018</p>
+            </div>
+          </div>
+        </div>
+      </footer>
+
+    
+    <script src="/js/custom.js"></script>
+  </body>
+</html>
+
+
diff --git a/docs/en/cowlib/2.12/manual/index.html b/docs/en/cowlib/2.12/manual/index.html
new file mode 100644
index 00000000..6303f602
--- /dev/null
+++ b/docs/en/cowlib/2.12/manual/index.html
@@ -0,0 +1,178 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="">
+    <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara">
+
+    <title>Nine Nines: Cowlib Function Reference</title>
+
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'>
+    <link href="/css/99s.css?r=7" rel="stylesheet">
+
+    <link rel="shortcut icon" href="/img/ico/favicon.ico">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
+    <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
+
+	</head>
+
+
+<body class="">
+  <header id="page-head">
+    <div id="topbar" class="container">
+        <div class="row">
+          <div class="span2">
+            <h1 id="logo"><a href="/" title="99s">99s</a></h1>
+          </div>
+          <div class="span10">
+            
+            <div id="side-header">
+              <nav>
+                <ul>
+                  <li><a title="Hear my thoughts" href="/articles">Articles</a></li>
+  				  <li><a title="Watch my talks" href="/talks">Talks</a></li>
+  				  <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li>
+  				  <li><a title="Request my services" href="/services">Consulting & Training</a></li>
+                </ul>
+              </nav> 
+              <ul id="social">
+                <li>
+                  <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a>
+                </li>
+                    <li>
+						<a title="Contact me" href="mailto:contact@ninenines.eu"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a>
+					</li>
+              </ul>
+            </div>
+          </div>
+        </div>
+    </div>
+
+
+</header>
+
+<div id="contents" class="two_col">
+<div class="container">
+<div class="row">
+<div id="docs" class="span9 maincol">
+
+<h1 class="lined-header"><span>Cowlib Function Reference</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cowlib - Support library for manipulating Web protocols</p>
+<h2 id="_description">Description</h2>
+<p>Cowlib provides libraries for parsing and building messages for various Web protocols, including HTTP/1.1, HTTP/2  and Websocket.</p>
+<p>It is optimized for completeness rather than speed. No value is ignored, they are all returned.</p>
+<h2 id="_modules">Modules</h2>
+<ul><li><a href="cow_cookie">cow_cookie(3)</a> - Cookies
+</li>
+</ul>
+<h2 id="_dependencies">Dependencies</h2>
+<ul><li>crypto - Crypto functions
+</li>
+</ul>
+<p>All these applications must be started before the <code>cowlib</code> application. To start Cowlib and all dependencies at once:</p>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt>{<font color="#FF6600">ok</font>, <font color="#990000">_</font>} <font color="#990000">=</font> <b><font color="#000000">application:ensure_all_started</font></b>(<font color="#FF6600">cowlib</font>)<font color="#990000">.</font></tt></pre>
+</div></div>
+<h2 id="_environment">Environment</h2>
+<p>The <code>cowlib</code> application does not define any application environment configuration parameters.</p>
+<h2 id="_see_also">See also</h2>
+<p><a href="cowboy_app">cowboy(7)</a>, <a href="gun_app">gun(7)</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
+
+
+<h3>
+	Cowlib
+	2.12
+	Function Reference
+	
+</h3>
+
+<ul>
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">Function Reference</a></li>
+	
+	
+</ul>
+
+<h4 id="docs-nav">Navigation</h4>
+
+<h4>Version select</h4>
+<ul>
+	
+	
+	
+		<li><a href="/docs/en/cowlib/2.12/manual">2.12</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.11/manual">2.11</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.10/manual">2.10</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.9/manual">2.9</a></li>
+	
+		<li><a href="/docs/en/cowlib/2.8/manual">2.8</a></li>
+	
+</ul>
+
+<h3 id="_like_my_work__donate">Like my work? Donate!</h3>
+<p>Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:</p>
+<form action="https://www.paypal.com/cgi-bin/webscr" method="post" style="display:inline">
+<input type="hidden" name="cmd" value="_donations">
+<input type="hidden" name="business" value="essen@ninenines.eu">
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+<img alt="" border="0" src="https://www.paypalobjects.com/fr_FR/i/scr/pixel.gif" width="1" height="1">
+</form><p>Recurring payment options are also available via <a href="https://github.com/sponsors/essen">GitHub Sponsors</a>. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.</p>
+
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+
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+              <nav>
+                <ul>
+                  <li><a href="mailto:contact@ninenines.eu" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li>
+                </ul>
+              </nav>
+            </div>
+            <div class="span6 credits">
+               <p><img src="/img/footer_logo.png"></p>
+               <p>Copyright &copy; Loïc Hoguin 2012-2018</p>
+            </div>
+          </div>
+        </div>
+      </footer>
+
+    
+    <script src="/js/custom.js"></script>
+  </body>
+</html>
+
+
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-    
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diff --git a/docs/en/gun/2.0/manual/gun.request/index.html b/docs/en/gun/2.0/manual/gun.request/index.html
index 9b8de5ce..c5afcbfc 100644
--- a/docs/en/gun/2.0/manual/gun.request/index.html
+++ b/docs/en/gun/2.0/manual/gun.request/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun.set_owner/index.html b/docs/en/gun/2.0/manual/gun.set_owner/index.html
index f1fbd8be..7b1a078f 100644
--- a/docs/en/gun/2.0/manual/gun.set_owner/index.html
+++ b/docs/en/gun/2.0/manual/gun.set_owner/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun.shutdown/index.html b/docs/en/gun/2.0/manual/gun.shutdown/index.html
index 33c658f4..3f08ec1d 100644
--- a/docs/en/gun/2.0/manual/gun.shutdown/index.html
+++ b/docs/en/gun/2.0/manual/gun.shutdown/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun.stream_info/index.html b/docs/en/gun/2.0/manual/gun.stream_info/index.html
index 7e2a43d7..326aa677 100644
--- a/docs/en/gun/2.0/manual/gun.stream_info/index.html
+++ b/docs/en/gun/2.0/manual/gun.stream_info/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun.update_flow/index.html b/docs/en/gun/2.0/manual/gun.update_flow/index.html
index 55fc1806..ffd97353 100644
--- a/docs/en/gun/2.0/manual/gun.update_flow/index.html
+++ b/docs/en/gun/2.0/manual/gun.update_flow/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun.ws_send/index.html b/docs/en/gun/2.0/manual/gun.ws_send/index.html
index 9761cf74..5ba82e60 100644
--- a/docs/en/gun/2.0/manual/gun.ws_send/index.html
+++ b/docs/en/gun/2.0/manual/gun.ws_send/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun.ws_upgrade/index.html b/docs/en/gun/2.0/manual/gun.ws_upgrade/index.html
index 40fb7115..740809a5 100644
--- a/docs/en/gun/2.0/manual/gun.ws_upgrade/index.html
+++ b/docs/en/gun/2.0/manual/gun.ws_upgrade/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -81,7 +80,7 @@ http://www.gnu.org/software/src-highlite -->
 <font color="#009900">ConnPid</font>   <font color="#990000">::</font> <b><font color="#000080">pid</font></b>()
 <font color="#009900">Path</font>      <font color="#990000">::</font> <b><font color="#000000">iodata</font></b>()
 <font color="#009900">Headers</font>   <font color="#990000">::</font> <b><font color="#000000">gun:req_headers</font></b>()
-<font color="#009900">WsOpts</font>    <font color="#990000">::</font> <font color="#FF6600">gun</font><font color="#990000">:</font><font color="#FF6600">ws_opts</font>
+<font color="#009900">WsOpts</font>    <font color="#990000">::</font> <b><font color="#000000">gun:ws_opts</font></b>()
 <font color="#009900">StreamRef</font> <font color="#990000">::</font> <b><font color="#000000">gun:stream_ref</font></b>()</tt></pre>
 </div></div>
 <p>Upgrade to Websocket.</p>
@@ -89,6 +88,7 @@ http://www.gnu.org/software/src-highlite -->
 <p>HTTP/1.1 cannot handle Websocket and HTTP requests concurrently. The upgrade, if successful, will result in the complete takeover of the connection. Any subsequent HTTP requests will be rejected.</p>
 <p>Gun does not currently support Websocket over HTTP/2.</p>
 <p>By default Gun will take the Websocket options from the connection&apos;s <code>ws_opts</code>.</p>
+<p>Websocket subprotocol negotiation is enabled when the <code>protocols</code> option is given. It takes a subprotocol name and a module implementing the <a href="../gun_ws_protocol">gun_ws_protocol(3)</a> behavior.</p>
 <h2 id="_arguments">Arguments</h2>
 <dl><dt>ConnPid</dt>
 <dd><p>The pid of the Gun connection process.</p>
@@ -134,8 +134,20 @@ http://www.gnu.org/software/src-highlite -->
     <font color="#0000FF">compress</font> <font color="#990000">=&gt;</font> <font color="#000080">false</font>
 })<font color="#990000">.</font></tt></pre>
 </div></div>
+<div class="listingblock"><div class="title">Upgrade to Websocket with protocol negotiation</div>
+<div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><font color="#009900">StreamRef</font> <font color="#990000">=</font> <b><font color="#000000">gun:ws_upgrade</font></b>(<font color="#009900">ConnPid</font>, <font color="#FF0000">"/ws"</font>, [], #{
+    <font color="#0000FF">protocols</font> <font color="#990000">=&gt;</font> [
+        {<font color="#990000">&lt;&lt;</font><font color="#FF0000">"mqtt"</font><font color="#990000">&gt;&gt;</font>, <font color="#FF6600">gun_ws_mqtt_h</font>},
+        {<font color="#990000">&lt;&lt;</font><font color="#FF0000">"v12.stomp"</font><font color="#990000">&gt;&gt;</font>, <font color="#FF6600">gun_ws_stomp_h</font>}
+    ]
+})<font color="#990000">.</font></tt></pre>
+</div></div>
 <h2 id="_see_also">See also</h2>
-<p><a href="../gun">gun(3)</a>, <a href="../gun.ws_send">gun:ws_send(3)</a>, <a href="../gun_upgrade">gun_upgrade(3)</a>, <a href="../gun_ws">gun_ws(3)</a></p>
+<p><a href="../gun">gun(3)</a>, <a href="../gun.ws_send">gun:ws_send(3)</a>, <a href="../gun_upgrade">gun_upgrade(3)</a>, <a href="../gun_ws">gun_ws(3)</a>, <a href="../gun_ws_protocol">gun_ws_protocol(3)</a></p>
 
 
 
diff --git a/docs/en/gun/2.0/manual/gun/index.html b/docs/en/gun/2.0/manual/gun/index.html
index 7cf1858f..4bbbe760 100644
--- a/docs/en/gun/2.0/manual/gun/index.html
+++ b/docs/en/gun/2.0/manual/gun/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -250,6 +249,7 @@ http://www.gnu.org/software/src-highlite -->
     <font color="#0000FF">cookie_ignore_informational</font> <font color="#990000">=&gt;</font> <b><font color="#000000">boolean</font></b>(),
     <font color="#0000FF">flow</font>                        <font color="#990000">=&gt;</font> <b><font color="#000000">pos_integer</font></b>(),
     <font color="#0000FF">keepalive</font>                   <font color="#990000">=&gt;</font> <b><font color="#000000">timeout</font></b>(),
+    <font color="#0000FF">keepalive_tolerance</font>         <font color="#990000">=&gt;</font> <b><font color="#000000">non_neg_integer</font></b>(),
 
     <i><font color="#9A1900">%% HTTP/2 state machine configuration.</font></i>
     <font color="#0000FF">connection_window_margin_size</font>  <font color="#990000">=&gt;</font> <font color="#993399">0</font><font color="#990000">..</font><font color="#993399">16#7fffffff</font>,
@@ -286,6 +286,9 @@ http://www.gnu.org/software/src-highlite -->
 <dt>keepalive (infinity)</dt>
 <dd><p>Time between pings in milliseconds.</p>
 </dd>
+<dt>keepalive_tolerance - see below</dt>
+<dd><p>The number of unacknowledged pings in flight that are tolerated before the connection is closed. By default this mechanism is disabled even if <code>keepalive</code> is enabled.</p>
+</dd>
 </dl>
 <h3 id="_opts">opts()</h3>
 <div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
@@ -358,8 +361,8 @@ http://www.gnu.org/software/src-highlite -->
 <dt>supervise (true)</dt>
 <dd><p>Whether the Gun process should be started under the <code>gun_sup</code> supervisor. Set to <code>false</code> to use your own supervisor.</p>
 </dd>
-<dt>tcp_opts ([])</dt>
-<dd><p>TCP options used when establishing the connection.</p>
+<dt>tcp_opts (DefaultOpts)</dt>
+<dd><p>TCP options used when establishing the connection. By default Gun enables send timeouts with the options <code>[{send_timeout, 15000}, {send_timeout_close, true}]</code>.</p>
 </dd>
 <dt>tls_handshake_timeout (infinity)</dt>
 <dd><p>TLS handshake timeout.</p>
@@ -488,12 +491,14 @@ by Lorenzo Bettini
 http://www.lorenzobettini.it
 http://www.gnu.org/software/src-highlite -->
 <pre><tt><b><font color="#000000">ws_opts</font></b>() <font color="#990000">::</font> #{
-    <font color="#0000FF">closing_timeout</font> <font color="#990000">=&gt;</font> <b><font color="#000000">timeout</font></b>(),
-    <font color="#0000FF">compress</font>        <font color="#990000">=&gt;</font> <b><font color="#000000">boolean</font></b>(),
-    <font color="#0000FF">flow</font>            <font color="#990000">=&gt;</font> <b><font color="#000000">pos_integer</font></b>(),
-    <font color="#0000FF">keepalive</font>       <font color="#990000">=&gt;</font> <b><font color="#000000">timeout</font></b>(),
-    <font color="#0000FF">protocols</font>       <font color="#990000">=&gt;</font> [{<b><font color="#000080">binary</font></b>(), <b><font color="#000000">module</font></b>()}],
-    <font color="#0000FF">silence_pings</font>   <font color="#990000">=&gt;</font> <b><font color="#000000">boolean</font></b>()
+    <font color="#0000FF">closing_timeout</font>  <font color="#990000">=&gt;</font> <b><font color="#000000">timeout</font></b>(),
+    <font color="#0000FF">compress</font>         <font color="#990000">=&gt;</font> <b><font color="#000000">boolean</font></b>(),
+    <font color="#0000FF">default_protocol</font> <font color="#990000">=&gt;</font> <b><font color="#000000">module</font></b>(),
+    <font color="#0000FF">flow</font>             <font color="#990000">=&gt;</font> <b><font color="#000000">pos_integer</font></b>(),
+    <font color="#0000FF">keepalive</font>        <font color="#990000">=&gt;</font> <b><font color="#000000">timeout</font></b>(),
+    <font color="#0000FF">protocols</font>        <font color="#990000">=&gt;</font> [{<b><font color="#000080">binary</font></b>(), <b><font color="#000000">module</font></b>()}],
+    <font color="#0000FF">silence_pings</font>    <font color="#990000">=&gt;</font> <b><font color="#000000">boolean</font></b>(),
+    <font color="#0000FF">user_opts</font>        <font color="#990000">=&gt;</font> <b><font color="#000000">any</font></b>()
 }</tt></pre>
 </div></div>
 <p>Configuration for the Websocket protocol.</p>
@@ -504,6 +509,9 @@ http://www.gnu.org/software/src-highlite -->
 <dt>compress (false)</dt>
 <dd><p>Whether to enable permessage-deflate compression. This does not guarantee that compression will be used as it is the server that ultimately decides. Defaults to false.</p>
 </dd>
+<dt>default_protocol (gun_ws_h)</dt>
+<dd><p>Default protocol module when no Websocket subprotocol is negotiated.</p>
+</dd>
 <dt>flow - see below</dt>
 <dd><p>The initial flow control value for the Websocket connection. By default flow control is disabled.</p>
 </dd>
@@ -511,15 +519,19 @@ http://www.gnu.org/software/src-highlite -->
 <dd><p>Time between pings in milliseconds.</p>
 </dd>
 <dt>protocols ([])</dt>
-<dd><p>A non-empty list enables Websocket protocol negotiation. The list of protocols will be sent in the sec-websocket-protocol request header. The handler module interface is currently undocumented and must be set to <code>gun_ws_h</code>.</p>
+<dd><p>A non-empty list enables Websocket protocol negotiation. The list of protocols will be sent in the sec-websocket-protocol request header. The given module must follow the <a href="../gun_ws_protocol">gun_ws_protocol(3)</a> interface. Gun comes with a default interface in <code>gun_ws_h</code> that may be reused for negotiated protocols.</p>
 </dd>
 <dt>silence_pings (true)</dt>
 <dd><p>Whether the ping and pong frames should be sent to the user. In all cases Gun will automatically send a pong frame back when receiving a ping.</p>
 </dd>
+<dt>user_opts - see below</dt>
+<dd><p>Additional options that are not in use by Gun unless a custom Websocket subprotocol is configured and negotiated. By default no user option is defined.</p>
+</dd>
 </dl>
-<!-- @todo Document default_protocol and user_opts.-->
 <h2 id="_changelog">Changelog</h2>
-<ul><li><strong>2.0</strong>: The <code>stream_ref()</code> type was added.
+<ul><li><strong>2.0</strong>: The <code>default_protocol</code> and <code>user_opts</code> Websocket options were added.
+</li>
+<li><strong>2.0</strong>: The <code>stream_ref()</code> type was added.
 </li>
 <li><strong>2.0</strong>: The option <code>cookie_store</code> was added. It can be used to configure a cookie store that Gun will use automatically. A related option, <code>cookie_ignore_informational</code>, was added to both <code>http_opts()</code> and <code>http2_opts()</code>.
 </li>
diff --git a/docs/en/gun/2.0/manual/gun_app/index.html b/docs/en/gun/2.0/manual/gun_app/index.html
index 70f44278..04adf1b2 100644
--- a/docs/en/gun/2.0/manual/gun_app/index.html
+++ b/docs/en/gun/2.0/manual/gun_app/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -76,6 +75,8 @@
 </li>
 <li><a href="../gun_event">gun_event(3)</a> - Events
 </li>
+<li><a href="../gun_ws_protocol">gun_ws_protocol(3)</a> - Websocket subprotocols
+</li>
 </ul>
 <h2 id="_dependencies">Dependencies</h2>
 <ul><li><a href="../cowlib">cowlib(7)</a> - Support library for manipulating Web protocols
diff --git a/docs/en/gun/2.0/manual/gun_cookies.domain_match/index.html b/docs/en/gun/2.0/manual/gun_cookies.domain_match/index.html
index a67600e6..f0b12616 100644
--- a/docs/en/gun/2.0/manual/gun_cookies.domain_match/index.html
+++ b/docs/en/gun/2.0/manual/gun_cookies.domain_match/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_cookies.path_match/index.html b/docs/en/gun/2.0/manual/gun_cookies.path_match/index.html
index 930286a7..1d4222c7 100644
--- a/docs/en/gun/2.0/manual/gun_cookies.path_match/index.html
+++ b/docs/en/gun/2.0/manual/gun_cookies.path_match/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_cookies/index.html b/docs/en/gun/2.0/manual/gun_cookies/index.html
index 4d75dab8..8c24282b 100644
--- a/docs/en/gun/2.0/manual/gun_cookies/index.html
+++ b/docs/en/gun/2.0/manual/gun_cookies/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_cookies_list/index.html b/docs/en/gun/2.0/manual/gun_cookies_list/index.html
index c7eea531..973b5c0d 100644
--- a/docs/en/gun/2.0/manual/gun_cookies_list/index.html
+++ b/docs/en/gun/2.0/manual/gun_cookies_list/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_data/index.html b/docs/en/gun/2.0/manual/gun_data/index.html
index 080f442c..cc177d8c 100644
--- a/docs/en/gun/2.0/manual/gun_data/index.html
+++ b/docs/en/gun/2.0/manual/gun_data/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_down/index.html b/docs/en/gun/2.0/manual/gun_down/index.html
index 45a715df..5deecf4d 100644
--- a/docs/en/gun/2.0/manual/gun_down/index.html
+++ b/docs/en/gun/2.0/manual/gun_down/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_error/index.html b/docs/en/gun/2.0/manual/gun_error/index.html
index e0056f64..c4b3ea03 100644
--- a/docs/en/gun/2.0/manual/gun_error/index.html
+++ b/docs/en/gun/2.0/manual/gun_error/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_event/index.html b/docs/en/gun/2.0/manual/gun_event/index.html
index 1f6373c3..69f521df 100644
--- a/docs/en/gun/2.0/manual/gun_event/index.html
+++ b/docs/en/gun/2.0/manual/gun_event/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_inform/index.html b/docs/en/gun/2.0/manual/gun_inform/index.html
index 655ce50d..fa4c6348 100644
--- a/docs/en/gun/2.0/manual/gun_inform/index.html
+++ b/docs/en/gun/2.0/manual/gun_inform/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_push/index.html b/docs/en/gun/2.0/manual/gun_push/index.html
index 3a1bfd27..51364fdc 100644
--- a/docs/en/gun/2.0/manual/gun_push/index.html
+++ b/docs/en/gun/2.0/manual/gun_push/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_response/index.html b/docs/en/gun/2.0/manual/gun_response/index.html
index c995e535..29e34041 100644
--- a/docs/en/gun/2.0/manual/gun_response/index.html
+++ b/docs/en/gun/2.0/manual/gun_response/index.html
@@ -17,8 +17,7 @@
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-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/gun/2.0/manual/gun_trailers/index.html b/docs/en/gun/2.0/manual/gun_trailers/index.html
index 45351e6a..fda6a656 100644
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+<!DOCTYPE html>
+<html lang="en">
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+
+<h1 class="lined-header"><span>gun_ws_protocol(3)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>gun_ws_protocol - Websocket subprotocols</p>
+<h2 id="_description">Description</h2>
+<p>The <code>gun_ws_protocol</code> module provides the callback interface and types for implementing Websocket subprotocols.</p>
+<h2 id="_callbacks">Callbacks</h2>
+<p>Websocket subprotocols implement the following interface.</p>
+<h3 id="_init">init</h3>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">init</font></b>(<font color="#009900">ReplyTo</font>, <font color="#009900">StreamRef</font>, <font color="#009900">Headers</font>, <font color="#009900">Opts</font>) <font color="#990000">-&gt;</font> {<font color="#FF6600">ok</font>, <font color="#009900">State</font>}
+
+<font color="#009900">ReplyTo</font>   <font color="#990000">::</font> <b><font color="#000080">pid</font></b>()
+<font color="#009900">StreamRef</font> <font color="#990000">::</font> <b><font color="#000080">reference</font></b>()
+<font color="#009900">Headers</font>   <font color="#990000">::</font> <b><font color="#000000">cow_http:headers</font></b>()
+<font color="#009900">Opts</font>      <font color="#990000">::</font> <b><font color="#000000">gun:ws_opts</font></b>()
+<font color="#009900">State</font>     <font color="#990000">::</font> <b><font color="#000000">protocol_state</font></b>()</tt></pre>
+</div></div>
+<p>Initialize the Websocket protocol.</p>
+<dl><dt>ReplyTo</dt>
+<dd><p>The pid of the process that owns the stream and to which messages will be sent to.</p>
+</dd>
+<dt>StreamRef</dt>
+<dd><p>The reference for the stream. Must be sent in messages to distinguish between different streams.</p>
+</dd>
+<dt>Headers</dt>
+<dd><p>Headers that were sent in the response establishing the Websocket connection.</p>
+</dd>
+<dt>Opts</dt>
+<dd><p>Websocket options. Custom options can be provided in the <code>user_opts</code> key.</p>
+</dd>
+<dt>State</dt>
+<dd><p>State for the protocol.</p>
+</dd>
+</dl>
+<h3 id="_handle">handle</h3>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">handle</font></b>(<font color="#009900">Frame</font>, <font color="#009900">State</font>) <font color="#990000">-&gt;</font> {<font color="#FF6600">ok</font>, <font color="#009900">FlowDec</font>, <font color="#009900">State</font>}
+
+<font color="#009900">Frame</font>   <font color="#990000">::</font> <b><font color="#000000">cow_ws:frame</font></b>()
+<font color="#009900">State</font>   <font color="#990000">::</font> <b><font color="#000000">protocol_state</font></b>()
+<font color="#009900">FlowDec</font> <font color="#990000">::</font> <b><font color="#000000">non_neg_integer</font></b>()</tt></pre>
+</div></div>
+<p>Handle a Websocket frame.</p>
+<p>This callback may receive fragmented frames depending on the protocol and may need to rebuild the full frame to process it.</p>
+<dl><dt>Frame</dt>
+<dd><p>Websocket frame.</p>
+</dd>
+<dt>State</dt>
+<dd><p>State for the protocol.</p>
+</dd>
+<dt>FlowDec</dt>
+<dd><p>How many messages were sent. Used to update the flow control state when the feature is enabled.</p>
+</dd>
+</dl>
+<h2 id="_types">Types</h2>
+<h3 id="_protocol_state">protocol_state()</h3>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">protocol_state</font></b>() <font color="#990000">::</font> <b><font color="#000000">any</font></b>()</tt></pre>
+</div></div>
+<p>State for the protocol.</p>
+<p>As this part of the implementation of the protocol the type may differ between different Websocket protocol modules.</p>
+<h2 id="_changelog">Changelog</h2>
+<ul><li><strong>2.0</strong>: Module introduced.
+</li>
+</ul>
+<h2 id="_see_also">See also</h2>
+<p><a href="..">gun(7)</a>, <a href="../gun">gun(3)</a>, <a href="../gun.ws_upgrade">gun:ws_upgrade(3)</a></p>
+
+
+
+
+
+
+</div>
+
+<div class="span3 sidecol">
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+
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+	2.0
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 </li>
 <li><a href="gun_event">gun_event(3)</a> - Events
 </li>
+<li><a href="gun_ws_protocol">gun_ws_protocol(3)</a> - Websocket subprotocols
+</li>
 </ul>
 <h2 id="_dependencies">Dependencies</h2>
 <ul><li><a href="cowlib_app">cowlib(7)</a> - Support library for manipulating Web protocols
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--- a/docs/en/ranch/2.1/guide/migrating_from_2.0.asciidoc
+++ b/docs/en/ranch/2.1/guide/migrating_from_2.0.asciidoc
@@ -23,7 +23,7 @@ for Erlang/OTP 21 has been removed.
   programmatically shut down idle connections to
   make up space for new connections, for example.
 
-* A `post_listen` callback option has been added. It
+* A `post_listen_callback` option has been added. It
   receives sockets immediately after the `Transport:listen/1`
   call. It can be used for some additional initialization
   of the socket, such as setting file permissions on
diff --git a/docs/en/ranch/2.1/guide/migrating_from_2.0/index.html b/docs/en/ranch/2.1/guide/migrating_from_2.0/index.html
index 2e17a487..bb75c367 100644
--- a/docs/en/ranch/2.1/guide/migrating_from_2.0/index.html
+++ b/docs/en/ranch/2.1/guide/migrating_from_2.0/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -70,7 +69,7 @@
 </li>
 <li>Alarms can now be configured. The only alarm currently available is <code>num_connections</code>. When the number of connections goes over a configurable treshold Ranch will call the given callback. This can be used to programmatically shut down idle connections to make up space for new connections, for example.
 </li>
-<li>A <code>post_listen</code> callback option has been added. It receives sockets immediately after the <code>Transport:listen/1</code> call. It can be used for some additional initialization of the socket, such as setting file permissions on Unix domain sockets.
+<li>A <code>post_listen_callback</code> option has been added. It receives sockets immediately after the <code>Transport:listen/1</code> call. It can be used for some additional initialization of the socket, such as setting file permissions on Unix domain sockets.
 </li>
 <li>It is now possible to use TLS-PSK authentication without having to specify a default certificate for TLS &lt; 1.3.
 </li>
diff --git a/docs/en/ranch/2.1/guide/parsers/index.html b/docs/en/ranch/2.1/guide/parsers/index.html
index ffcb0932..2c2eaa37 100644
--- a/docs/en/ranch/2.1/guide/parsers/index.html
+++ b/docs/en/ranch/2.1/guide/parsers/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/guide/protocols/index.html b/docs/en/ranch/2.1/guide/protocols/index.html
index d275248c..a346ca38 100644
--- a/docs/en/ranch/2.1/guide/protocols/index.html
+++ b/docs/en/ranch/2.1/guide/protocols/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/guide/ssl_auth/index.html b/docs/en/ranch/2.1/guide/ssl_auth/index.html
index 2ad9a96a..16a0c806 100644
--- a/docs/en/ranch/2.1/guide/ssl_auth/index.html
+++ b/docs/en/ranch/2.1/guide/ssl_auth/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/guide/transports/index.html b/docs/en/ranch/2.1/guide/transports/index.html
index b6238f4b..922e8b3a 100644
--- a/docs/en/ranch/2.1/guide/transports/index.html
+++ b/docs/en/ranch/2.1/guide/transports/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/index.html b/docs/en/ranch/2.1/manual/index.html
index 9a90e7ec..24b974eb 100644
--- a/docs/en/ranch/2.1/manual/index.html
+++ b/docs/en/ranch/2.1/manual/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.child_spec/index.html b/docs/en/ranch/2.1/manual/ranch.child_spec/index.html
index b244d9ca..6afab174 100644
--- a/docs/en/ranch/2.1/manual/ranch.child_spec/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.child_spec/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.get_addr/index.html b/docs/en/ranch/2.1/manual/ranch.get_addr/index.html
index 12ce9487..1824515f 100644
--- a/docs/en/ranch/2.1/manual/ranch.get_addr/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.get_addr/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.get_max_connections/index.html b/docs/en/ranch/2.1/manual/ranch.get_max_connections/index.html
index 70966780..eea16999 100644
--- a/docs/en/ranch/2.1/manual/ranch.get_max_connections/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.get_max_connections/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.get_port/index.html b/docs/en/ranch/2.1/manual/ranch.get_port/index.html
index be771dc5..57e8d1c9 100644
--- a/docs/en/ranch/2.1/manual/ranch.get_port/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.get_port/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.get_protocol_options/index.html b/docs/en/ranch/2.1/manual/ranch.get_protocol_options/index.html
index f60777b5..f88effd6 100644
--- a/docs/en/ranch/2.1/manual/ranch.get_protocol_options/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.get_protocol_options/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.get_status/index.html b/docs/en/ranch/2.1/manual/ranch.get_status/index.html
index 64d2cf25..9598267f 100644
--- a/docs/en/ranch/2.1/manual/ranch.get_status/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.get_status/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.get_transport_options/index.html b/docs/en/ranch/2.1/manual/ranch.get_transport_options/index.html
index 89c97f1e..2e01a2aa 100644
--- a/docs/en/ranch/2.1/manual/ranch.get_transport_options/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.get_transport_options/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.handshake/index.html b/docs/en/ranch/2.1/manual/ranch.handshake/index.html
index 4672ce45..52c033c9 100644
--- a/docs/en/ranch/2.1/manual/ranch.handshake/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.handshake/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.handshake_cancel/index.html b/docs/en/ranch/2.1/manual/ranch.handshake_cancel/index.html
index d759ac8a..a96766cb 100644
--- a/docs/en/ranch/2.1/manual/ranch.handshake_cancel/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.handshake_cancel/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.handshake_continue/index.html b/docs/en/ranch/2.1/manual/ranch.handshake_continue/index.html
index 58974738..d6f8a02a 100644
--- a/docs/en/ranch/2.1/manual/ranch.handshake_continue/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.handshake_continue/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.info/index.html b/docs/en/ranch/2.1/manual/ranch.info/index.html
index 96f5b77a..3329c7d4 100644
--- a/docs/en/ranch/2.1/manual/ranch.info/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.info/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.procs/index.html b/docs/en/ranch/2.1/manual/ranch.procs/index.html
index 3e2a35f2..b03b96a5 100644
--- a/docs/en/ranch/2.1/manual/ranch.procs/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.procs/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.recv_proxy_header/index.html b/docs/en/ranch/2.1/manual/ranch.recv_proxy_header/index.html
index ff86375e..9359c54b 100644
--- a/docs/en/ranch/2.1/manual/ranch.recv_proxy_header/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.recv_proxy_header/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.remove_connection/index.html b/docs/en/ranch/2.1/manual/ranch.remove_connection/index.html
index b8ba83c0..19829653 100644
--- a/docs/en/ranch/2.1/manual/ranch.remove_connection/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.remove_connection/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.resume_listener/index.html b/docs/en/ranch/2.1/manual/ranch.resume_listener/index.html
index e94a7874..a27e86bc 100644
--- a/docs/en/ranch/2.1/manual/ranch.resume_listener/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.resume_listener/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.set_max_connections/index.html b/docs/en/ranch/2.1/manual/ranch.set_max_connections/index.html
index 4905c8b7..adef279d 100644
--- a/docs/en/ranch/2.1/manual/ranch.set_max_connections/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.set_max_connections/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.set_protocol_options/index.html b/docs/en/ranch/2.1/manual/ranch.set_protocol_options/index.html
index 1391a86b..a2584190 100644
--- a/docs/en/ranch/2.1/manual/ranch.set_protocol_options/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.set_protocol_options/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.set_transport_options/index.html b/docs/en/ranch/2.1/manual/ranch.set_transport_options/index.html
index e614dc57..174b1f92 100644
--- a/docs/en/ranch/2.1/manual/ranch.set_transport_options/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.set_transport_options/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.start_listener/index.html b/docs/en/ranch/2.1/manual/ranch.start_listener/index.html
index c36d91e7..4f73920f 100644
--- a/docs/en/ranch/2.1/manual/ranch.start_listener/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.start_listener/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.stop_listener/index.html b/docs/en/ranch/2.1/manual/ranch.stop_listener/index.html
index 04f4e62c..acfb85e5 100644
--- a/docs/en/ranch/2.1/manual/ranch.stop_listener/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.stop_listener/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.suspend_listener/index.html b/docs/en/ranch/2.1/manual/ranch.suspend_listener/index.html
index 7f49de7d..d60b014a 100644
--- a/docs/en/ranch/2.1/manual/ranch.suspend_listener/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.suspend_listener/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch.wait_for_connections/index.html b/docs/en/ranch/2.1/manual/ranch.wait_for_connections/index.html
index 596caa0e..a1f42366 100644
--- a/docs/en/ranch/2.1/manual/ranch.wait_for_connections/index.html
+++ b/docs/en/ranch/2.1/manual/ranch.wait_for_connections/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch/index.html b/docs/en/ranch/2.1/manual/ranch/index.html
index 656d8d80..b8a76ae9 100644
--- a/docs/en/ranch/2.1/manual/ranch/index.html
+++ b/docs/en/ranch/2.1/manual/ranch/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -222,7 +221,9 @@ http://www.gnu.org/software/src-highlite -->
 </dd>
 </dl>
 <h2 id="_changelog">Changelog</h2>
-<ul><li><strong>2.0</strong>: The type <code>transport_opts(SocketOpts)</code> was added.
+<ul><li><strong>2.1</strong>: The <code>post_listen_callback</code> transport option was added.
+</li>
+<li><strong>2.0</strong>: The type <code>transport_opts(SocketOpts)</code> was added.
 </li>
 <li><strong>2.0</strong>: The function <code>ranch:accept_ack/1</code> was removed in favor of <a href="../ranch.handshake">ranch:handshake(3)</a>.
 </li>
diff --git a/docs/en/ranch/2.1/manual/ranch_app/index.html b/docs/en/ranch/2.1/manual/ranch_app/index.html
index ea3ec7d8..b9b20e73 100644
--- a/docs/en/ranch/2.1/manual/ranch_app/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_app/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch_protocol/index.html b/docs/en/ranch/2.1/manual/ranch_protocol/index.html
index 8ef9d06f..032c7625 100644
--- a/docs/en/ranch/2.1/manual/ranch_protocol/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_protocol/index.html
@@ -17,8 +17,7 @@
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     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
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+	</head>
 
 
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diff --git a/docs/en/ranch/2.1/manual/ranch_proxy_header.header/index.html b/docs/en/ranch/2.1/manual/ranch_proxy_header.header/index.html
index 14a6546f..6c7c9e17 100644
--- a/docs/en/ranch/2.1/manual/ranch_proxy_header.header/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_proxy_header.header/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch_proxy_header.parse/index.html b/docs/en/ranch/2.1/manual/ranch_proxy_header.parse/index.html
index 4206fead..2ef77fdf 100644
--- a/docs/en/ranch/2.1/manual/ranch_proxy_header.parse/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_proxy_header.parse/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch_proxy_header.to_connection_info/index.html b/docs/en/ranch/2.1/manual/ranch_proxy_header.to_connection_info/index.html
index 2515bcae..ecd0c2f3 100644
--- a/docs/en/ranch/2.1/manual/ranch_proxy_header.to_connection_info/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_proxy_header.to_connection_info/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch_proxy_header/index.html b/docs/en/ranch/2.1/manual/ranch_proxy_header/index.html
index ac7e16c5..7e59b02b 100644
--- a/docs/en/ranch/2.1/manual/ranch_proxy_header/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_proxy_header/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch_ssl/index.html b/docs/en/ranch/2.1/manual/ranch_ssl/index.html
index ca990304..73dbc769 100644
--- a/docs/en/ranch/2.1/manual/ranch_ssl/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_ssl/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -97,6 +96,11 @@ http://www.gnu.org/software/src-highlite -->
           | {<font color="#FF6600">cacertfile</font>, <b><font color="#000000">file:filename</font></b>()}
           | {<font color="#FF6600">cacerts</font>, [<b><font color="#000000">public_key:der_encoded</font></b>()]}
           | {<font color="#FF6600">cert</font>, <b><font color="#000000">public_key:der_encoded</font></b>()}
+          | {<font color="#FF6600">certs_keys</font>, [#{<font color="#0000FF">cert</font> <font color="#990000">=&gt;</font> <b><font color="#000000">public_key:der_encoded</font></b>(),
+                            <font color="#0000FF">key</font> <font color="#990000">=&gt;</font> <b><font color="#000000">ssl:key</font></b>(),
+                            <font color="#0000FF">certfile</font> <font color="#990000">=&gt;</font> <b><font color="#000000">file:filename</font></b>(),
+                            <font color="#0000FF">keyfile</font> <font color="#990000">=&gt;</font> <b><font color="#000000">file:filename</font></b>(),
+                            <font color="#0000FF">key_pem_password</font> <font color="#990000">=&gt;</font> <b><font color="#000000">iodata</font></b>() | <b><font color="#0000FF">fun</font></b>(() <font color="#990000">-&gt;</font> <b><font color="#000000">iodata</font></b>())}]}
           | {<font color="#FF6600">certfile</font>, <b><font color="#000000">file:filename</font></b>()}
           | {<font color="#FF6600">ciphers</font>, <b><font color="#000000">ssl:ciphers</font></b>()}
           | {<font color="#FF6600">client_renegotiation</font>, <b><font color="#000000">boolean</font></b>()}
@@ -159,6 +163,9 @@ http://www.gnu.org/software/src-highlite -->
 <dt>cert</dt>
 <dd><p>DER encoded user certificate.</p>
 </dd>
+<dt>certs_keys</dt>
+<dd><p>A list of a certificate (or possible a certificate and its chain) and the associated key of the certificate, that may be used to authenticate the client or the server.</p>
+</dd>
 <dt>certfile</dt>
 <dd><p>Path to the PEM encoded user certificate file. May also contain the private key.</p>
 </dd>
diff --git a/docs/en/ranch/2.1/manual/ranch_tcp/index.html b/docs/en/ranch/2.1/manual/ranch_tcp/index.html
index f5bfa2aa..25d11344 100644
--- a/docs/en/ranch/2.1/manual/ranch_tcp/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_tcp/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch_transport.sendfile/index.html b/docs/en/ranch/2.1/manual/ranch_transport.sendfile/index.html
index 3677b19f..22032921 100644
--- a/docs/en/ranch/2.1/manual/ranch_transport.sendfile/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_transport.sendfile/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/en/ranch/2.1/manual/ranch_transport/index.html b/docs/en/ranch/2.1/manual/ranch_transport/index.html
index dea04f2c..8bc12d80 100644
--- a/docs/en/ranch/2.1/manual/ranch_transport/index.html
+++ b/docs/en/ranch/2.1/manual/ranch_transport/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/docs/index.html b/docs/index.html
index b9e53b8f..c6ab644d 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -120,6 +119,11 @@
 		
 			
 			
+				<li><a href="/docs/en/cowlib/2.12/manual">Cowlib 2.12 Function Reference</a></li>
+			
+		
+			
+			
 				<li><a href="/docs/en/cowlib/2.11/manual">Cowlib 2.11 Function Reference</a></li>
 			
 		
diff --git a/docs/index.xml b/docs/index.xml
index 1cd6902c..4090aadc 100644
--- a/docs/index.xml
+++ b/docs/index.xml
@@ -3365,6 +3365,17 @@ Description The module cow_cookie provides functions for parsing and manipulatin
 Exports cow_cookie:parse_cookie(3) - Parse a cookie header  cow_cookie:parse_set_cookie(3) - Parse a set-cookie header  cow_cookie:cookie(3) - Generate a cookie header  cow_cookie:setcookie(3) - Generate a set-cookie header   Types cookie_attrs() cookie_attrs() :: #{ expires =&amp;gt; calendar:datetime(), max_age =&amp;gt; calendar:datetime(), domain =&amp;gt; binary(), path =&amp;gt; binary(), secure =&amp;gt; true, http_only =&amp;gt; true, same_site =&amp;gt; strict | lax | none }  Cookie attributes parsed from the set-cookie header.</description>
     </item>
     
+    <item>
+      <title>cow_cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie/</guid>
+      <description>Name cow_cookie - Cookies
+Description The module cow_cookie provides functions for parsing and manipulating cookie headers.
+Exports cow_cookie:parse_cookie(3) - Parse a cookie header  cow_cookie:parse_set_cookie(3) - Parse a set-cookie header  cow_cookie:cookie(3) - Generate a cookie header  cow_cookie:setcookie(3) - Generate a set-cookie header   Types cookie_attrs() cookie_attrs() :: #{ expires =&amp;gt; calendar:datetime(), max_age =&amp;gt; calendar:datetime(), domain =&amp;gt; binary(), path =&amp;gt; binary(), secure =&amp;gt; true, http_only =&amp;gt; true, same_site =&amp;gt; default | none | strict | lax }  Cookie attributes parsed from the set-cookie header.</description>
+    </item>
+    
     <item>
       <title>cow_cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie/</link>
@@ -3413,6 +3424,19 @@ Arguments Cookies A list of pairs of cookie name and value.
 Changelog 2.9: Function introduced.   Examples Generate a cookie header Cookie = cow_cookie:cookie([{&amp;lt;&amp;lt;&#34;sessionid&#34;&amp;gt;&amp;gt;, ID}]).  See also cow_cookie(3), cow_cookie:parse_cookie(3), cow_cookie:parse_set_cookie(3), cow_cookie:setcookie(3)</description>
     </item>
     
+    <item>
+      <title>cow_cookie:cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.cookie/</guid>
+      <description>Name cow_cookie:cookie - Generate a cookie header
+Description cookie(Cookies) -&amp;gt; iolist() Cookies :: [{Name :: iodata(), Value :: iodata()}]  Generate a cookie header.
+Arguments Cookies A list of pairs of cookie name and value.
+  Return value An iolist with the generated cookie header value.
+Changelog 2.9: Function introduced.   Examples Generate a cookie header Cookie = cow_cookie:cookie([{&amp;lt;&amp;lt;&#34;sessionid&#34;&amp;gt;&amp;gt;, ID}]).  See also cow_cookie(3), cow_cookie:parse_cookie(3), cow_cookie:parse_set_cookie(3), cow_cookie:setcookie(3)</description>
+    </item>
+    
     <item>
       <title>cow_cookie:cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.9/manual/cow_cookie.cookie/</link>
@@ -3454,6 +3478,20 @@ An exception is thrown in the event of a parse error.
 Changelog 2.9: Fixes to the parser may lead to potential incompatibilities. A cookie name starting with $ is no longer ignored.</description>
     </item>
     
+    <item>
+      <title>cow_cookie:parse_cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/</guid>
+      <description>Name cow_cookie:parse_cookie - Parse a cookie header
+Description parse_cookie(Cookie :: binary()) -&amp;gt; [{binary(), binary()}]  Parse a cookie header.
+Arguments Cookie The cookie header value.
+  Return value A list of cookie name/value pairs is returned on success.
+An exception is thrown in the event of a parse error.
+Changelog 2.9: Fixes to the parser may lead to potential incompatibilities. A cookie name starting with $ is no longer ignored.</description>
+    </item>
+    
     <item>
       <title>cow_cookie:parse_cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie.parse_cookie/</link>
@@ -3508,6 +3546,19 @@ Arguments SetCookie The set-cookie header value.
 An atom ignore is returned when the cookie has both an empty name and an empty value, and must be ignored.</description>
     </item>
     
+    <item>
+      <title>cow_cookie:parse_set_cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/</guid>
+      <description>Name cow_cookie:parse_set_cookie - Parse a set-cookie header
+Description parse_set_cookie(SetCookie :: binary()) -&amp;gt; {ok, Name, Value, Attrs} | ignore Name :: binary() Value :: binary() Attrs :: cow_cookie:cookie_attrs()  Parse a set-cookie header.
+Arguments SetCookie The set-cookie header value.
+  Return value An ok tuple with the cookie name, value and attributes is returned on success.
+An atom ignore is returned when the cookie has both an empty name and an empty value, and must be ignored.</description>
+    </item>
+    
     <item>
       <title>cow_cookie:parse_set_cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.9/manual/cow_cookie.parse_set_cookie/</link>
@@ -3551,6 +3602,21 @@ Arguments Name Cookie name.
 Changelog 1.0: Function introduced.   Examples Generate a set-cookie header SetCookie = cow_cookie:setcookie(&amp;lt;&amp;lt;&#34;sessionid&#34;&amp;gt;&amp;gt;, ID, #{ http_only =&amp;gt; true, secure =&amp;gt; true }).</description>
     </item>
     
+    <item>
+      <title>cow_cookie:setcookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/</guid>
+      <description>Name cow_cookie:setcookie - Generate a set-cookie header
+Description setcookie(Name :: iodata(), Value :: iodata(), Opts :: cow_cookie:cookie_opts()) -&amp;gt; iolist()  Generate a set-cookie header.
+Arguments Name Cookie name.
+ Value Cookie value.
+ Opts Options added to the set-cookie header as attributes.
+  Return value An iolist with the generated set-cookie header value.
+Changelog 2.12: The Version attribute is no longer generated.  1.0: Function introduced.   Examples Generate a set-cookie header SetCookie = cow_cookie:setcookie(&amp;lt;&amp;lt;&#34;</description>
+    </item>
+    
     <item>
       <title>cow_cookie:setcookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie.setcookie/</link>
@@ -9030,6 +9096,18 @@ It is optimized for completeness rather than speed. No value is ignored, they ar
 Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
     </item>
     
+    <item>
+      <title>Cowlib Function Reference</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/</guid>
+      <description>Name cowlib - Support library for manipulating Web protocols
+Description Cowlib provides libraries for parsing and building messages for various Web protocols, including HTTP/1.1, HTTP/2 and Websocket.
+It is optimized for completeness rather than speed. No value is ignored, they are all returned.
+Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
+    </item>
+    
     <item>
       <title>Cowlib Function Reference</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/</link>
@@ -9078,6 +9156,18 @@ It is optimized for completeness rather than speed. No value is ignored, they ar
 Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
     </item>
     
+    <item>
+      <title>cowlib(7)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cowlib_app/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cowlib_app/</guid>
+      <description>Name cowlib - Support library for manipulating Web protocols
+Description Cowlib provides libraries for parsing and building messages for various Web protocols, including HTTP/1.1, HTTP/2 and Websocket.
+It is optimized for completeness rather than speed. No value is ignored, they are all returned.
+Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
+    </item>
+    
     <item>
       <title>cowlib(7)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cowlib_app/</link>
@@ -9159,7 +9249,7 @@ Modules gun(3) - Asynchronous HTTP client   Dependencies cowlib(7) - Support lib
       <description>Name gun - HTTP/1.1, HTTP/2 and Websocket client for Erlang/OTP
 Description Gun is an HTTP client for Erlang/OTP with support for the HTTP/1.1, HTTP/2 and Websocket protocols.
 Gun aims to provide an easy to use, asynchronous and always-connected client. It maintains a permanent connection to the server and reconnects automatically when necessary.
-Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
+Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events  gun_ws_protocol(3) - Websocket subprotocols   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
     </item>
     
     <item>
@@ -9324,7 +9414,7 @@ Modules gun(3) - Asynchronous HTTP client   Dependencies cowlib(7) - Support lib
       <description>Name gun - HTTP/1.1, HTTP/2 and Websocket client for Erlang/OTP
 Description Gun is an HTTP client for Erlang/OTP with support for the HTTP/1.1, HTTP/2 and Websocket protocols.
 Gun aims to provide an easy to use, asynchronous and always-connected client. It maintains a permanent connection to the server and reconnects automatically when necessary.
-Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
+Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events  gun_ws_protocol(3) - Websocket subprotocols   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
     </item>
     
     <item>
@@ -10610,7 +10700,7 @@ HTTP/1.1 cannot handle Websocket and HTTP requests concurrently. The upgrade, if
       
       <guid>https://ninenines.eu/docs/en/gun/2.0/manual/gun.ws_upgrade/</guid>
       <description>Name gun:ws_upgrade - Upgrade to Websocket
-Description ws_upgrade(ConnPid, Path) -&amp;gt; ws_upgrade(ConnPid, Path, []) ws_upgrade(ConnPid, Path, Headers) -&amp;gt; StreamRef ws_upgrade(ConnPid, Path, Headers, WsOpts) -&amp;gt; StreamRef ConnPid :: pid() Path :: iodata() Headers :: gun:req_headers() WsOpts :: gun:ws_opts StreamRef :: gun:stream_ref()  Upgrade to Websocket.
+Description ws_upgrade(ConnPid, Path) -&amp;gt; ws_upgrade(ConnPid, Path, []) ws_upgrade(ConnPid, Path, Headers) -&amp;gt; StreamRef ws_upgrade(ConnPid, Path, Headers, WsOpts) -&amp;gt; StreamRef ConnPid :: pid() Path :: iodata() Headers :: gun:req_headers() WsOpts :: gun:ws_opts() StreamRef :: gun:stream_ref()  Upgrade to Websocket.
 The behavior of this function depends on the protocol selected.
 HTTP/1.1 cannot handle Websocket and HTTP requests concurrently. The upgrade, if successful, will result in the complete takeover of the connection.</description>
     </item>
@@ -11325,6 +11415,19 @@ This message informs the relevant process that the server sent the enclosed fram
 This message can only be sent on streams that were upgraded to the Websocket protocol.</description>
     </item>
     
+    <item>
+      <title>gun_ws_protocol(3)</title>
+      <link>https://ninenines.eu/docs/en/gun/2.0/manual/gun_ws_protocol/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/gun/2.0/manual/gun_ws_protocol/</guid>
+      <description>Name gun_ws_protocol - Websocket subprotocols
+Description The gun_ws_protocol module provides the callback interface and types for implementing Websocket subprotocols.
+Callbacks Websocket subprotocols implement the following interface.
+init init(ReplyTo, StreamRef, Headers, Opts) -&amp;gt; {ok, State} ReplyTo :: pid() StreamRef :: reference() Headers :: cow_http:headers() Opts :: gun:ws_opts() State :: protocol_state()  Initialize the Websocket protocol.
+ReplyTo The pid of the process that owns the stream and to which messages will be sent to.</description>
+    </item>
+    
     <item>
       <title>HTTP status codes(7)</title>
       <link>https://ninenines.eu/docs/en/cowboy/2.4/manual/http_status_codes/</link>
@@ -13286,7 +13389,7 @@ Exports The module ranch_ssl implements the interface defined by ranch_transport
 Types opt() opt() :: ranch_tcp:opt() | ssl_opt()  Listen options.
 The TCP options are defined in ranch_tcp(3).
 opts() opts() :: [opt()]  List of listen options.
-ssl_opt() ssl_opt() = {alpn_preferred_protocols, [binary()]} | {anti_replay, &#39;10k&#39; | &#39;100k&#39; | {integer(), integer(), integer()}} | {beast_mitigation, one_n_minus_one | zero_n | disabled} | {cacertfile, file:filename()} | {cacerts, [public_key:der_encoded()]} | {cert, public_key:der_encoded()} | {certfile, file:filename()} | {ciphers, ssl:ciphers()} | {client_renegotiation, boolean()} | {crl_cache, [any()]} | {crl_check, boolean() | peer | best_effort} | {depth, integer()} | {dh, binary()} | {dhfile, file:filename()} | {eccs, [ssl:named_curve()]} | {fail_if_no_peer_cert, boolean()} | {handshake, hello | full} | {hibernate_after, timeout()} | {honor_cipher_order, boolean()} | {honor_ecc_order, boolean()} | {key, ssl:key()} | {key_update_at, pos_integer()} | {keyfile, file:filename()} | {log_alert, boolean()} | {log_level, logger:level()} | {max_handshake_size, integer()} | {middlebox_comp_mode, boolean()} | {next_protocols_advertised, [binary()]} | {padding_check, boolean()} | {partial_chain, fun()} | {password, string()} | {protocol, tls | dtls} | {psk_identity, string()} | {reuse_session, fun()} | {reuse_sessions, boolean()} | {secure_renegotiate, boolean()} | {session_tickets, disabled | stateful | stateless} | {signature_algs, [{ssl:hash(), ssl:sign_algo()}]} | {signature_algs_cert, [ssl:sign_scheme()]} | {sni_fun, fun()} | {sni_hosts, [{string(), ssl_opt()}]} | {supported_groups, [ssl:group()]} | {user_lookup_fun, {fun(), any()}} | {verify, verify_none | verify_peer} | {verify_fun, {fun(), any()}} | {versions, [ssl:protocol_version()]}  SSL-specific listen options.</description>
+ssl_opt() ssl_opt() = {alpn_preferred_protocols, [binary()]} | {anti_replay, &#39;10k&#39; | &#39;100k&#39; | {integer(), integer(), integer()}} | {beast_mitigation, one_n_minus_one | zero_n | disabled} | {cacertfile, file:filename()} | {cacerts, [public_key:der_encoded()]} | {cert, public_key:der_encoded()} | {certs_keys, [#{cert =&amp;gt; public_key:der_encoded(), key =&amp;gt; ssl:key(), certfile =&amp;gt; file:filename(), keyfile =&amp;gt; file:filename(), key_pem_password =&amp;gt; iodata() | fun(() -&amp;gt; iodata())}]} | {certfile, file:filename()} | {ciphers, ssl:ciphers()} | {client_renegotiation, boolean()} | {crl_cache, [any()]} | {crl_check, boolean() | peer | best_effort} | {depth, integer()} | {dh, binary()} | {dhfile, file:filename()} | {eccs, [ssl:named_curve()]} | {fail_if_no_peer_cert, boolean()} | {handshake, hello | full} | {hibernate_after, timeout()} | {honor_cipher_order, boolean()} | {honor_ecc_order, boolean()} | {key, ssl:key()} | {key_update_at, pos_integer()} | {keyfile, file:filename()} | {log_alert, boolean()} | {log_level, logger:level()} | {max_handshake_size, integer()} | {middlebox_comp_mode, boolean()} | {next_protocols_advertised, [binary()]} | {padding_check, boolean()} | {partial_chain, fun()} | {password, string()} | {protocol, tls | dtls} | {psk_identity, string()} | {reuse_session, fun()} | {reuse_sessions, boolean()} | {secure_renegotiate, boolean()} | {session_tickets, disabled | stateful | stateless} | {signature_algs, [{ssl:hash(), ssl:sign_algo()}]} | {signature_algs_cert, [ssl:sign_scheme()]} | {sni_fun, fun()} | {sni_hosts, [{string(), ssl_opt()}]} | {supported_groups, [ssl:group()]} | {user_lookup_fun, {fun(), any()}} | {verify, verify_none | verify_peer} | {verify_fun, {fun(), any()}} | {versions, [ssl:protocol_version()]}  SSL-specific listen options.</description>
     </item>
     
     <item>
diff --git a/donate/index.html b/donate/index.html
index b8e78493..25cef413 100644
--- a/donate/index.html
+++ b/donate/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
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@@ -2438,6 +2437,22 @@
 	
 
 	
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diff --git a/erlanger-playbook/index.html b/erlanger-playbook/index.html
index 2e16b0f6..ff26da97 100644
--- a/erlanger-playbook/index.html
+++ b/erlanger-playbook/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
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@@ -2478,6 +2477,22 @@
 	
 
 	
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index ffd67c04..beee6627 100644
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+++ b/index.html
@@ -18,10 +18,8 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-        <link rel="alternate" href="https://ninenines.eu/index.xml" type="application/rss+xml" title="Nine Nines" />
-	
-</head>
+	<link rel="alternate" type="application/rss+xml" href="https://ninenines.eu/index.xml" title="Nine Nines" />
+	</head>
 
 
 <body class="home big_text">
@@ -137,7 +135,7 @@
 				<a class="btn btn-large" href="https://github.com/ninenines/cowlib">Source Code</a>
 				
 				
-					<a class="btn btn-large" href="/docs/en/cowlib/2.11/manual/">Manual</a>
+					<a class="btn btn-large" href="/docs/en/cowlib/2.12/manual/">Manual</a>
 				
 				
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diff --git a/index.xml b/index.xml
index 81d44bc6..c7b4eabe 100644
--- a/index.xml
+++ b/index.xml
@@ -4036,6 +4036,17 @@ Description The module cow_cookie provides functions for parsing and manipulatin
 Exports cow_cookie:parse_cookie(3) - Parse a cookie header  cow_cookie:parse_set_cookie(3) - Parse a set-cookie header  cow_cookie:cookie(3) - Generate a cookie header  cow_cookie:setcookie(3) - Generate a set-cookie header   Types cookie_attrs() cookie_attrs() :: #{ expires =&amp;gt; calendar:datetime(), max_age =&amp;gt; calendar:datetime(), domain =&amp;gt; binary(), path =&amp;gt; binary(), secure =&amp;gt; true, http_only =&amp;gt; true, same_site =&amp;gt; strict | lax | none }  Cookie attributes parsed from the set-cookie header.</description>
     </item>
     
+    <item>
+      <title>cow_cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie/</guid>
+      <description>Name cow_cookie - Cookies
+Description The module cow_cookie provides functions for parsing and manipulating cookie headers.
+Exports cow_cookie:parse_cookie(3) - Parse a cookie header  cow_cookie:parse_set_cookie(3) - Parse a set-cookie header  cow_cookie:cookie(3) - Generate a cookie header  cow_cookie:setcookie(3) - Generate a set-cookie header   Types cookie_attrs() cookie_attrs() :: #{ expires =&amp;gt; calendar:datetime(), max_age =&amp;gt; calendar:datetime(), domain =&amp;gt; binary(), path =&amp;gt; binary(), secure =&amp;gt; true, http_only =&amp;gt; true, same_site =&amp;gt; default | none | strict | lax }  Cookie attributes parsed from the set-cookie header.</description>
+    </item>
+    
     <item>
       <title>cow_cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie/</link>
@@ -4084,6 +4095,19 @@ Arguments Cookies A list of pairs of cookie name and value.
 Changelog 2.9: Function introduced.   Examples Generate a cookie header Cookie = cow_cookie:cookie([{&amp;lt;&amp;lt;&#34;sessionid&#34;&amp;gt;&amp;gt;, ID}]).  See also cow_cookie(3), cow_cookie:parse_cookie(3), cow_cookie:parse_set_cookie(3), cow_cookie:setcookie(3)</description>
     </item>
     
+    <item>
+      <title>cow_cookie:cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.cookie/</guid>
+      <description>Name cow_cookie:cookie - Generate a cookie header
+Description cookie(Cookies) -&amp;gt; iolist() Cookies :: [{Name :: iodata(), Value :: iodata()}]  Generate a cookie header.
+Arguments Cookies A list of pairs of cookie name and value.
+  Return value An iolist with the generated cookie header value.
+Changelog 2.9: Function introduced.   Examples Generate a cookie header Cookie = cow_cookie:cookie([{&amp;lt;&amp;lt;&#34;sessionid&#34;&amp;gt;&amp;gt;, ID}]).  See also cow_cookie(3), cow_cookie:parse_cookie(3), cow_cookie:parse_set_cookie(3), cow_cookie:setcookie(3)</description>
+    </item>
+    
     <item>
       <title>cow_cookie:cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.9/manual/cow_cookie.cookie/</link>
@@ -4125,6 +4149,20 @@ An exception is thrown in the event of a parse error.
 Changelog 2.9: Fixes to the parser may lead to potential incompatibilities. A cookie name starting with $ is no longer ignored.</description>
     </item>
     
+    <item>
+      <title>cow_cookie:parse_cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/</guid>
+      <description>Name cow_cookie:parse_cookie - Parse a cookie header
+Description parse_cookie(Cookie :: binary()) -&amp;gt; [{binary(), binary()}]  Parse a cookie header.
+Arguments Cookie The cookie header value.
+  Return value A list of cookie name/value pairs is returned on success.
+An exception is thrown in the event of a parse error.
+Changelog 2.9: Fixes to the parser may lead to potential incompatibilities. A cookie name starting with $ is no longer ignored.</description>
+    </item>
+    
     <item>
       <title>cow_cookie:parse_cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie.parse_cookie/</link>
@@ -4179,6 +4217,19 @@ Arguments SetCookie The set-cookie header value.
 An atom ignore is returned when the cookie has both an empty name and an empty value, and must be ignored.</description>
     </item>
     
+    <item>
+      <title>cow_cookie:parse_set_cookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/</guid>
+      <description>Name cow_cookie:parse_set_cookie - Parse a set-cookie header
+Description parse_set_cookie(SetCookie :: binary()) -&amp;gt; {ok, Name, Value, Attrs} | ignore Name :: binary() Value :: binary() Attrs :: cow_cookie:cookie_attrs()  Parse a set-cookie header.
+Arguments SetCookie The set-cookie header value.
+  Return value An ok tuple with the cookie name, value and attributes is returned on success.
+An atom ignore is returned when the cookie has both an empty name and an empty value, and must be ignored.</description>
+    </item>
+    
     <item>
       <title>cow_cookie:parse_set_cookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.9/manual/cow_cookie.parse_set_cookie/</link>
@@ -4222,6 +4273,21 @@ Arguments Name Cookie name.
 Changelog 1.0: Function introduced.   Examples Generate a set-cookie header SetCookie = cow_cookie:setcookie(&amp;lt;&amp;lt;&#34;sessionid&#34;&amp;gt;&amp;gt;, ID, #{ http_only =&amp;gt; true, secure =&amp;gt; true }).</description>
     </item>
     
+    <item>
+      <title>cow_cookie:setcookie(3)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/</guid>
+      <description>Name cow_cookie:setcookie - Generate a set-cookie header
+Description setcookie(Name :: iodata(), Value :: iodata(), Opts :: cow_cookie:cookie_opts()) -&amp;gt; iolist()  Generate a set-cookie header.
+Arguments Name Cookie name.
+ Value Cookie value.
+ Opts Options added to the set-cookie header as attributes.
+  Return value An iolist with the generated set-cookie header value.
+Changelog 2.12: The Version attribute is no longer generated.  1.0: Function introduced.   Examples Generate a set-cookie header SetCookie = cow_cookie:setcookie(&amp;lt;&amp;lt;&#34;</description>
+    </item>
+    
     <item>
       <title>cow_cookie:setcookie(3)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie.setcookie/</link>
@@ -9701,6 +9767,18 @@ It is optimized for completeness rather than speed. No value is ignored, they ar
 Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
     </item>
     
+    <item>
+      <title>Cowlib Function Reference</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/</guid>
+      <description>Name cowlib - Support library for manipulating Web protocols
+Description Cowlib provides libraries for parsing and building messages for various Web protocols, including HTTP/1.1, HTTP/2 and Websocket.
+It is optimized for completeness rather than speed. No value is ignored, they are all returned.
+Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
+    </item>
+    
     <item>
       <title>Cowlib Function Reference</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/</link>
@@ -9749,6 +9827,18 @@ It is optimized for completeness rather than speed. No value is ignored, they ar
 Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
     </item>
     
+    <item>
+      <title>cowlib(7)</title>
+      <link>https://ninenines.eu/docs/en/cowlib/2.12/manual/cowlib_app/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/cowlib/2.12/manual/cowlib_app/</guid>
+      <description>Name cowlib - Support library for manipulating Web protocols
+Description Cowlib provides libraries for parsing and building messages for various Web protocols, including HTTP/1.1, HTTP/2 and Websocket.
+It is optimized for completeness rather than speed. No value is ignored, they are all returned.
+Modules cow_cookie(3) - Cookies   Dependencies crypto - Crypto functions   All these applications must be started before the cowlib application. To start Cowlib and all dependencies at once:</description>
+    </item>
+    
     <item>
       <title>cowlib(7)</title>
       <link>https://ninenines.eu/docs/en/cowlib/2.8/manual/cowlib_app/</link>
@@ -9830,7 +9920,7 @@ Modules gun(3) - Asynchronous HTTP client   Dependencies cowlib(7) - Support lib
       <description>Name gun - HTTP/1.1, HTTP/2 and Websocket client for Erlang/OTP
 Description Gun is an HTTP client for Erlang/OTP with support for the HTTP/1.1, HTTP/2 and Websocket protocols.
 Gun aims to provide an easy to use, asynchronous and always-connected client. It maintains a permanent connection to the server and reconnects automatically when necessary.
-Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
+Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events  gun_ws_protocol(3) - Websocket subprotocols   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
     </item>
     
     <item>
@@ -9995,7 +10085,7 @@ Modules gun(3) - Asynchronous HTTP client   Dependencies cowlib(7) - Support lib
       <description>Name gun - HTTP/1.1, HTTP/2 and Websocket client for Erlang/OTP
 Description Gun is an HTTP client for Erlang/OTP with support for the HTTP/1.1, HTTP/2 and Websocket protocols.
 Gun aims to provide an easy to use, asynchronous and always-connected client. It maintains a permanent connection to the server and reconnects automatically when necessary.
-Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
+Modules gun(3) - Asynchronous HTTP client  gun_cookies(3) - Cookie store engine  gun_cookies_list(3) - Cookie store backend: in-memory, per connection  gun_event(3) - Events  gun_ws_protocol(3) - Websocket subprotocols   Dependencies cowlib(7) - Support library for manipulating Web protocols  ssl - Secure communication over sockets   All these applications must be started before the gun application.</description>
     </item>
     
     <item>
@@ -11281,7 +11371,7 @@ HTTP/1.1 cannot handle Websocket and HTTP requests concurrently. The upgrade, if
       
       <guid>https://ninenines.eu/docs/en/gun/2.0/manual/gun.ws_upgrade/</guid>
       <description>Name gun:ws_upgrade - Upgrade to Websocket
-Description ws_upgrade(ConnPid, Path) -&amp;gt; ws_upgrade(ConnPid, Path, []) ws_upgrade(ConnPid, Path, Headers) -&amp;gt; StreamRef ws_upgrade(ConnPid, Path, Headers, WsOpts) -&amp;gt; StreamRef ConnPid :: pid() Path :: iodata() Headers :: gun:req_headers() WsOpts :: gun:ws_opts StreamRef :: gun:stream_ref()  Upgrade to Websocket.
+Description ws_upgrade(ConnPid, Path) -&amp;gt; ws_upgrade(ConnPid, Path, []) ws_upgrade(ConnPid, Path, Headers) -&amp;gt; StreamRef ws_upgrade(ConnPid, Path, Headers, WsOpts) -&amp;gt; StreamRef ConnPid :: pid() Path :: iodata() Headers :: gun:req_headers() WsOpts :: gun:ws_opts() StreamRef :: gun:stream_ref()  Upgrade to Websocket.
 The behavior of this function depends on the protocol selected.
 HTTP/1.1 cannot handle Websocket and HTTP requests concurrently. The upgrade, if successful, will result in the complete takeover of the connection.</description>
     </item>
@@ -11996,6 +12086,19 @@ This message informs the relevant process that the server sent the enclosed fram
 This message can only be sent on streams that were upgraded to the Websocket protocol.</description>
     </item>
     
+    <item>
+      <title>gun_ws_protocol(3)</title>
+      <link>https://ninenines.eu/docs/en/gun/2.0/manual/gun_ws_protocol/</link>
+      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
+      
+      <guid>https://ninenines.eu/docs/en/gun/2.0/manual/gun_ws_protocol/</guid>
+      <description>Name gun_ws_protocol - Websocket subprotocols
+Description The gun_ws_protocol module provides the callback interface and types for implementing Websocket subprotocols.
+Callbacks Websocket subprotocols implement the following interface.
+init init(ReplyTo, StreamRef, Headers, Opts) -&amp;gt; {ok, State} ReplyTo :: pid() StreamRef :: reference() Headers :: cow_http:headers() Opts :: gun:ws_opts() State :: protocol_state()  Initialize the Websocket protocol.
+ReplyTo The pid of the process that owns the stream and to which messages will be sent to.</description>
+    </item>
+    
     <item>
       <title>HTTP status codes(7)</title>
       <link>https://ninenines.eu/docs/en/cowboy/2.4/manual/http_status_codes/</link>
@@ -13957,7 +14060,7 @@ Exports The module ranch_ssl implements the interface defined by ranch_transport
 Types opt() opt() :: ranch_tcp:opt() | ssl_opt()  Listen options.
 The TCP options are defined in ranch_tcp(3).
 opts() opts() :: [opt()]  List of listen options.
-ssl_opt() ssl_opt() = {alpn_preferred_protocols, [binary()]} | {anti_replay, &#39;10k&#39; | &#39;100k&#39; | {integer(), integer(), integer()}} | {beast_mitigation, one_n_minus_one | zero_n | disabled} | {cacertfile, file:filename()} | {cacerts, [public_key:der_encoded()]} | {cert, public_key:der_encoded()} | {certfile, file:filename()} | {ciphers, ssl:ciphers()} | {client_renegotiation, boolean()} | {crl_cache, [any()]} | {crl_check, boolean() | peer | best_effort} | {depth, integer()} | {dh, binary()} | {dhfile, file:filename()} | {eccs, [ssl:named_curve()]} | {fail_if_no_peer_cert, boolean()} | {handshake, hello | full} | {hibernate_after, timeout()} | {honor_cipher_order, boolean()} | {honor_ecc_order, boolean()} | {key, ssl:key()} | {key_update_at, pos_integer()} | {keyfile, file:filename()} | {log_alert, boolean()} | {log_level, logger:level()} | {max_handshake_size, integer()} | {middlebox_comp_mode, boolean()} | {next_protocols_advertised, [binary()]} | {padding_check, boolean()} | {partial_chain, fun()} | {password, string()} | {protocol, tls | dtls} | {psk_identity, string()} | {reuse_session, fun()} | {reuse_sessions, boolean()} | {secure_renegotiate, boolean()} | {session_tickets, disabled | stateful | stateless} | {signature_algs, [{ssl:hash(), ssl:sign_algo()}]} | {signature_algs_cert, [ssl:sign_scheme()]} | {sni_fun, fun()} | {sni_hosts, [{string(), ssl_opt()}]} | {supported_groups, [ssl:group()]} | {user_lookup_fun, {fun(), any()}} | {verify, verify_none | verify_peer} | {verify_fun, {fun(), any()}} | {versions, [ssl:protocol_version()]}  SSL-specific listen options.</description>
+ssl_opt() ssl_opt() = {alpn_preferred_protocols, [binary()]} | {anti_replay, &#39;10k&#39; | &#39;100k&#39; | {integer(), integer(), integer()}} | {beast_mitigation, one_n_minus_one | zero_n | disabled} | {cacertfile, file:filename()} | {cacerts, [public_key:der_encoded()]} | {cert, public_key:der_encoded()} | {certs_keys, [#{cert =&amp;gt; public_key:der_encoded(), key =&amp;gt; ssl:key(), certfile =&amp;gt; file:filename(), keyfile =&amp;gt; file:filename(), key_pem_password =&amp;gt; iodata() | fun(() -&amp;gt; iodata())}]} | {certfile, file:filename()} | {ciphers, ssl:ciphers()} | {client_renegotiation, boolean()} | {crl_cache, [any()]} | {crl_check, boolean() | peer | best_effort} | {depth, integer()} | {dh, binary()} | {dhfile, file:filename()} | {eccs, [ssl:named_curve()]} | {fail_if_no_peer_cert, boolean()} | {handshake, hello | full} | {hibernate_after, timeout()} | {honor_cipher_order, boolean()} | {honor_ecc_order, boolean()} | {key, ssl:key()} | {key_update_at, pos_integer()} | {keyfile, file:filename()} | {log_alert, boolean()} | {log_level, logger:level()} | {max_handshake_size, integer()} | {middlebox_comp_mode, boolean()} | {next_protocols_advertised, [binary()]} | {padding_check, boolean()} | {partial_chain, fun()} | {password, string()} | {protocol, tls | dtls} | {psk_identity, string()} | {reuse_session, fun()} | {reuse_sessions, boolean()} | {secure_renegotiate, boolean()} | {session_tickets, disabled | stateful | stateless} | {signature_algs, [{ssl:hash(), ssl:sign_algo()}]} | {signature_algs_cert, [ssl:sign_scheme()]} | {sni_fun, fun()} | {sni_hosts, [{string(), ssl_opt()}]} | {supported_groups, [ssl:group()]} | {user_lookup_fun, {fun(), any()}} | {verify, verify_none | verify_peer} | {verify_fun, {fun(), any()}} | {versions, [ssl:protocol_version()]}  SSL-specific listen options.</description>
     </item>
     
     <item>
diff --git a/services/index.html b/services/index.html
index bf6b23b2..745044fb 100644
--- a/services/index.html
+++ b/services/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
@@ -2464,6 +2463,22 @@
 	
 
 	
+
+	
+
+	
+
+	
+
+	
+
+	
+
+	
+
+	
+
+	
 
 	
 
diff --git a/sitemap.xml b/sitemap.xml
index 93b487ef..d2f546e4 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -1544,6 +1544,10 @@
     <loc>https://ninenines.eu/docs/en/cowlib/2.11/manual/cow_cookie/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie/</loc>
   </url>
@@ -1560,6 +1564,10 @@
     <loc>https://ninenines.eu/docs/en/cowlib/2.11/manual/cow_cookie.cookie/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.cookie/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowlib/2.9/manual/cow_cookie.cookie/</loc>
   </url>
@@ -1572,6 +1580,10 @@
     <loc>https://ninenines.eu/docs/en/cowlib/2.11/manual/cow_cookie.parse_cookie/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_cookie/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie.parse_cookie/</loc>
   </url>
@@ -1588,6 +1600,10 @@
     <loc>https://ninenines.eu/docs/en/cowlib/2.11/manual/cow_cookie.parse_set_cookie/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.parse_set_cookie/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowlib/2.9/manual/cow_cookie.parse_set_cookie/</loc>
   </url>
@@ -1600,6 +1616,10 @@
     <loc>https://ninenines.eu/docs/en/cowlib/2.11/manual/cow_cookie.setcookie/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowlib/2.12/manual/cow_cookie.setcookie/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowlib/2.8/manual/cow_cookie.setcookie/</loc>
   </url>
@@ -3344,6 +3364,10 @@
     <loc>https://ninenines.eu/docs/en/cowlib/2.11/manual/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowlib/2.12/manual/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowlib/2.8/manual/</loc>
   </url>
@@ -3360,6 +3384,10 @@
     <loc>https://ninenines.eu/docs/en/cowlib/2.11/manual/cowlib_app/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowlib/2.12/manual/cowlib_app/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowlib/2.8/manual/cowlib_app/</loc>
   </url>
@@ -4108,6 +4136,10 @@
     <loc>https://ninenines.eu/docs/en/gun/2.0/manual/gun_ws/</loc>
   </url>
   
+  <url>
+    <loc>https://ninenines.eu/docs/en/gun/2.0/manual/gun_ws_protocol/</loc>
+  </url>
+  
   <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.4/manual/http_status_codes/</loc>
   </url>
diff --git a/slogan/index.html b/slogan/index.html
index dd913f1e..7f73f236 100644
--- a/slogan/index.html
+++ b/slogan/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
diff --git a/tags/index.html b/tags/index.html
index afbc9f0d..1aeb1953 100644
--- a/tags/index.html
+++ b/tags/index.html
@@ -17,10 +17,8 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-        <link rel="alternate" href="https://ninenines.eu/tags/index.xml" type="application/rss+xml" title="Nine Nines" />
-	
-</head>
+	<link rel="alternate" type="application/rss+xml" href="https://ninenines.eu/tags/index.xml" title="Nine Nines" />
+	</head>
 
 
 <body class="">
diff --git a/talks/index.html b/talks/index.html
index 7ed662e4..8ddb1400 100644
--- a/talks/index.html
+++ b/talks/index.html
@@ -17,8 +17,7 @@
     <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png">
     <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png">
 
-    
-</head>
+	</head>
 
 
 <body class="">
-- 
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