--- a/xml/en/docs/http/ngx_http_upstream_module.xml	Tue Dec 11 14:56:34 2018 +0000
+++ b/xml/en/docs/http/ngx_http_upstream_module.xml	Tue Dec 18 18:21:22 2018 +0300
@@ -10,7 +10,7 @@
 <module name="Module ngx_http_upstream_module"
         link="/en/docs/http/ngx_http_upstream_module.html"
         lang="en"
-        rev="78">
+        rev="79">
 
 <section id="summary">
 
@@ -1157,6 +1157,14 @@
 <link id="var_upstream_addr">$upstream_addr</link> variable.
 </tag-desc>
 
+<tag-name id="var_upstream_bytes_sent"><var>$upstream_bytes_sent</var></tag-name>
+<tag-desc>
+number of bytes sent to an upstream server (1.15.8).
+Values from several connections
+are separated by commas and colons like addresses in the
+<link id="var_upstream_addr">$upstream_addr</link> variable.
+</tag-desc>
+
 <tag-name id="var_upstream_cache_status"><var>$upstream_cache_status</var>
 </tag-name>
 <tag-desc>