Make session ID regeneration configurable in security_settings.ini

Till Brehm

2016-07-23 aae7dceb7968fb8fe18b6065ee30ac86f3bcaee3

1
ALTER TABLE  `sys_session` CHANGE  `session_id`  `session_id` VARCHAR( 64 ) CHARACTER SET latin1 COLLATE latin1_swedish_ci NOT NULL;