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Running osTicket on Windows Server 2012 R2 on IIS 8.5 with PHP 5.5.11 and MariaDB.We have a test install of osTicket v1.9.3 (which was working fine) and we're trying to upgrade it to v1.9.4 (copied 'upload' contents over existing files) but when we attempt to run the upgrader online it states:The upgrader does NOT support upgrading from the current patch !X PHP v5.3 or later - (5.5.11)X MySQLi extension for PHP- (module loaded)X MySQL v5.0 or later - (10.0.13)I'm guessing we've done something stupid but there seems to be little documentation on this process. There doesn't seem to be any PHP errors in any logs I can find. I can provide more information on request.