if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
$dbh->do("ALTER TABLE `issuingrules` ADD hardduedate date default NULL AFTER issuelength");
$dbh->do("ALTER TABLE `issuingrules` ADD hardduedatecompare tinyint NOT NULL default 0 AFTER hardduedate");
if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
$dbh->do("ALTER TABLE `issuingrules` ADD hardduedate date default NULL AFTER issuelength");
$dbh->do("ALTER TABLE `issuingrules` ADD hardduedatecompare tinyint NOT NULL default 0 AFTER hardduedate");