--- a/classes/install/Installer.inc.php
+++ b/classes/install/Installer.inc.php
@@ -290,10 +290,16 @@ class Installer {
 	function updateVersion() {
 		if ($this->newVersion->compare($this->currentVersion) > 0) {
 			if ($this->getParam('manualInstall')) {
+				// Mark old version as no longer current
+				$this->executeSQL(sprintf('UPDATE versions SET current = 0 WHERE product = %s', $this->dbconn->qstr($this->currentVersion->getProduct())));
+
 				// FIXME Would be better to have a mode where $dbconn->execute() saves the query
 				return $this->executeSQL(sprintf('INSERT INTO versions (major, minor, revision, build, date_installed, current, product_type, product, product_class_name, lazy_load, sitewide) VALUES (%d, %d, %d, %d, NOW(), 1, %s, %s, %s, %d, %d)', $this->newVersion->getMajor(), $this->newVersion->getMinor(), $this->newVersion->getRevision(), $this->newVersion->getBuild(), $this->dbconn->qstr($this->newVersion->getProductType()), $this->dbconn->qstr($this->newVersion->getProduct()), $this->dbconn->qstr($this->newVersion->getProductClassName()), ($this->newVersion->getLazyLoad()?1:0), ($this->newVersion->getSitewide()?1:0)));
 			} else {
 				$versionDao =& DAORegistry::getDAO('VersionDAO');
+				// Mark old version as no longer current
+				$versionDao->disableVersion($this->currentVersion->getProduct());
+
 				if (!$versionDao->insertVersion($this->newVersion)) {
 					return false;
 				}