[eluser]beemr[/eluser]
Still not exactly sure what was changed between SVN's, but I needed a down-and-dirty fix so:
In set_value() in Form_validation, have the function return a regex:
Code:
return preg_replace("/</", "&lt;", $this->_field_data[$field]['postdata']);
Apparently, CI 1.7svn needs to double escape the "less-than"