Follow up to r1677187.

Add compatibility note

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1677210 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/mod_log_config.xml b/docs/manual/mod/mod_log_config.xml
index 7b27026fe1e582c1e0b03490f74b7c824ec294af..e6fd97c66659552069aa977beb60ff05dbf18fa4 100644 (file)
--- a/docs/manual/mod/mod_log_config.xml
+++ b/docs/manual/mod/mod_log_config.xml
@@ -147,7 +147,8 @@
         <td>The request method.</td></tr>
 
     <tr><td><code>%M</code></td>
-        <td>The time taken to serve the request, in milliseconds.</td></tr>
+        <td>The time taken to serve the request, in milliseconds.
+        (available in 2.4.13 and later)</td></tr>
 
     <tr><td><code>%{<var>VARNAME</var>}n</code></td>
         <td>The contents of note <var>VARNAME</var> from another