Upgrade 7.12.6 to 7.15.1 issues with PHP version

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Upgrade from SuiteCRM 7.14.x to 7.15.x fails

I had problems too on updating 7.14 to 7.15 with apache and php-fpm, the 7.15 update ran into an timout because it took a little bit too long. You may have to wait more than 5 minutes for the update to complete. Had to increase the timout in /etc/apache2/apache2.conf # # Timeout: The number of seconds before receives and sends time out. # Timeout 900