The patch takes care of putting a new field (returntype) in the tags
file. It can be activated passing the 'T' flag to the fields parameter
diff against svn rev 704
Will this be included in next release?
well I don't think they'll apply that one, they haven't even posted a reply so far. You can have a look at anjuta-tags http://git.gnome.org/browse/anjuta/tree/plugins/symbol-db/anjuta-tags which is the patched and up-to-date version of ctags. It ships with Anjuta's package.