Assumption 2 is invalid. You need to take a close look at the change log. Many "features" from 5.2 are no longer available and will break code that depends on them. Bob McConnell -----Original Message----- From: David Stoltz [mailto:Dstoltz@xxxxxxx] Sent: Friday, November 20, 2009 10:50 AM To: php-general@xxxxxxxxxxxxx Subject: Upgrading PHP versions Hi, We are currently using PHP version 5.2.6. in production, and I'd like to upgrade to the latest 5.3.1 My Assumptions: - I can simply download the Windows binary file, and install it. - None of the 5.2.6 code will break Will there be a momentary interruption of web services during the install? Will the current PHP applications stop working during the upgrade? Thanks for any info. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php