Hello, Urgent helpis needed! We carry our genealogical wiki "GenWiki" http://genwiki.genealogy.net in version 1.14.1. We planned to update soon to 1.17.1. So we checked out to http://wiki-test.genealogy.net http://svn.wikimedia.org/svnroot/mediawiki/branches/REL1_17/phase3 and after clearing all conflicts we updated database with ./maintenance/update.php All seemed good because of no failures. Calling our test-wiki you will find Warning: mysql_real_escape_string() expects parameter 2 to be resource, null given in /data/wiki/wiki-test/includes/db/DatabaseMysql.php on line 316 Warning: mysql_real_escape_string() expects parameter 2 to be resource, null given in /data/wiki/wiki-test/includes/db/DatabaseMysql.php on line 316 Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /data/wiki/wiki-test/includes/db/DatabaseMysql.php on line 23 All of these code snippets are in "core code", not in our extensions! Where/how to heal? We thaught, that code should be running at least? Switch back to 1.16.2? Wait for release of 1.17.x? -- I look forward to your answers... Uwe (Baumbach) U.Baumbach(a)web.de