list which versions of ikiwiki have this feature

diff --git a/doc/plugins/map.mdwn b/doc/plugins/map.mdwn
index df34d77cd8007cd72e344da43c6f8e871a2b7b35..ce2ebda3f588ddcba2b83f8aa7d7b873ce280537 100644 (file)
--- a/doc/plugins/map.mdwn
+++ b/doc/plugins/map.mdwn
@@ -10,7 +10,8 @@ This plugin generates a hierarchical page map for the wiki. Example usage:
 If the pages to include are not specified, all pages (and other files) in
 the wiki are mapped.
 
-By default, the names of pages are shown in the map. The `show` parameter
+By default, the names of pages are shown in the map. Since ikiwiki 2.51, 
+The `show` parameter
 can be used to show the titles or descriptions of pages instead (as set by
 the [[meta]] plugin). For example: