--- a/xml/en/docs/http/ngx_http_ssl_module.xml	Tue Oct 12 20:51:19 2021 +0100
+++ b/xml/en/docs/http/ngx_http_ssl_module.xml	Mon Nov 01 21:06:06 2021 +0000
@@ -10,7 +10,7 @@
 <module name="Module ngx_http_ssl_module"
         link="/en/docs/http/ngx_http_ssl_module.html"
         lang="en"
-        rev="54">
+        rev="55">
 
 <section id="summary">
 
@@ -986,6 +986,12 @@
 embedded variables:
 <list type="tag">
 
+<tag-name id="var_ssl_alpn_protocol"><var>$ssl_alpn_protocol</var></tag-name>
+<tag-desc>
+returns the protocol selected by ALPN during the SSL handshake,
+or an empty string otherwise (1.21.4);
+</tag-desc>
+
 <tag-name id="var_ssl_cipher"><var>$ssl_cipher</var></tag-name>
 <tag-desc>
 returns the name of the cipher used