Follow up to r1677187.

Add compatibility note

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1677211 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/mod_log_config.xml b/docs/manual/mod/mod_log_config.xml
index 072ac766afbbfb5138fef47eba95276c18f703ea..5d1ad135060f96a48f4028fac752f5d1c4a4f301 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