Update documentation for Cowboy 2.1

1 files changed, 376 insertions, 0 deletions

diff --git a/sitemap.xml b/sitemap.xml
index 620cce22..acc83325 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -27,10 +27,18 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/modern_web/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/guide/erlang_web/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/erlang_web/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/getting_started/</loc>
   </url>
   
@@ -59,6 +67,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/introduction/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/ranch/1.2/guide/transports/</loc>
   </url>
   
@@ -95,6 +107,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/getting_started/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/updating/</loc>
   </url>
   
@@ -123,6 +139,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/flow_diagram/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/gun/1.0/guide/websocket/</loc>
   </url>
   
@@ -147,6 +167,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/listeners/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/ranch/1.2/guide/ssl_auth/</loc>
   </url>
   
@@ -167,6 +191,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/routing/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/ports/</loc>
   </url>
   
@@ -187,6 +215,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/constraints/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/releases/</loc>
   </url>
   
@@ -199,6 +231,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/handlers/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/escripts/</loc>
   </url>
   
@@ -207,6 +243,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/loop_handlers/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/kerl/</loc>
   </url>
   
@@ -215,6 +255,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/static_files/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/compat/</loc>
   </url>
   
@@ -227,10 +271,18 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/req/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/guide/req_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/req_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/edoc/</loc>
   </url>
   
@@ -243,6 +295,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/resp/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/eunit/</loc>
   </url>
   
@@ -251,6 +307,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/cookies/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/common_test/</loc>
   </url>
   
@@ -259,6 +319,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/multipart/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/coverage/</loc>
   </url>
   
@@ -267,6 +331,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/rest_principles/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/ci/</loc>
   </url>
   
@@ -275,6 +343,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/rest_handlers/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/dialyzer/</loc>
   </url>
   
@@ -287,6 +359,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/rest_flowcharts/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/external_plugins/</loc>
   </url>
   
@@ -295,6 +371,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/resource_design/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/external_plugins_list/</loc>
   </url>
   
@@ -303,6 +383,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/ws_protocol/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/why/</loc>
   </url>
   
@@ -311,6 +395,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/ws_handlers/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/history/</loc>
   </url>
   
@@ -319,6 +407,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/streams/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/erlang.mk/1/guide/contributing/</loc>
   </url>
   
@@ -327,14 +419,30 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/middlewares/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/guide/migrating_from_1.0/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/migrating_from_2.0/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/guide/specs/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/migrating_from_1.0/</loc>
+  </url>
+  
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/specs/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/articles/cowboy-2.0.0/</loc>
     <lastmod>2017-10-04T12:00:00+01:00</lastmod>
   </url>
@@ -505,10 +613,18 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/guide/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/guide/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/</loc>
     <priority>0</priority>
   </url>
@@ -530,6 +646,10 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/http_status_codes/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/</loc>
     <lastmod>2017-10-04T12:00:00+01:00</lastmod>
     <priority>0</priority>
@@ -569,246 +689,502 @@
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_app/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_app/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy.set_env/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy.set_env/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy.start_clear/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy.start_clear/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy.start_tls/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy.start_tls/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy.stop_listener/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy.stop_listener/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_constraints/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_constraints/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_constraints.int/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_constraints.int/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_constraints.nonempty/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_constraints.nonempty/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_handler/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_handler/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_handler.terminate/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_handler.terminate/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_http/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_http/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_http2/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_http2/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_loop/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_loop/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_middleware/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_middleware/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.binding/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.binding/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.bindings/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.bindings/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.body_length/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.body_length/</loc>
+  </url>
+  
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.cert/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.delete_resp_header/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.delete_resp_header/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.has_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.has_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.has_resp_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.has_resp_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.has_resp_header/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.has_resp_header/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.header/</loc>
   </url>
   
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+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.header/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.headers/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.headers/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.host/</loc>
   </url>
   
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+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.host/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.host_info/</loc>
   </url>
   
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+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.host_info/</loc>
+  </url>
+  
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.inform/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.match_cookies/</loc>
   </url>
   
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+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.match_cookies/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.match_qs/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.match_qs/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.method/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.method/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.parse_cookies/</loc>
   </url>
   
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+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.parse_cookies/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.parse_header/</loc>
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+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.parse_header/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.parse_qs/</loc>
   </url>
   
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+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.parse_qs/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.path/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.path/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.path_info/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.path_info/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.peer/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.peer/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.port/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.port/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.push/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.push/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.qs/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.qs/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.read_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.read_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.read_part/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.read_part/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.read_part_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.read_part_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.read_urlencoded_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.read_urlencoded_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.reply/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.reply/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.resp_header/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.resp_header/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.resp_headers/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.resp_headers/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.scheme/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.scheme/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.set_resp_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.set_resp_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.set_resp_cookie/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.set_resp_cookie/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.set_resp_header/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.set_resp_header/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.set_resp_headers/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.set_resp_headers/</loc>
+  </url>
+  
+  <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.sock/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.stream_body/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.stream_body/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.stream_reply/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.stream_reply/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.uri/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.uri/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_req.version/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_req.version/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_rest/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_rest/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_router/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_router/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_router.compile/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_router.compile/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_static/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_static/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_stream/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_stream/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_websocket/</loc>
   </url>
   
   <url>
+    <loc>https://ninenines.eu/docs/en/cowboy/2.1/manual/cowboy_websocket/</loc>
+  </url>
+  
+  <url>
     <loc>https://ninenines.eu/docs/en/gun/1.0/manual/gun/</loc>
   </url>