From: otrs-bounces@otrs.org [mailto:otrs-bounces@otrs.org] On Behalf Of Matthew Bonner Sent: Sunday, January 12, 2014 6:24 PM Subject: [otrs] Upgrading vintage OTRS Greetings, I'm currently planning an upgrade of an old - 2.4.5, circa 2009 - OTRS instance. <snip> Any traps / considerations to be careful of? Perhaps others on the list have done a similar upgrade? _____ I recall experiencing some issues with the Master/Slave module. It needed some manual massaging. I don't remember the details other than the package manager just didn't want to uninstall or install the packages. (I did follow the specific directions for the upgrade.) There certainly could have been some corruption in the data/database which caused the issue. Didn't loose any information from what I can tell, but it added a half hour or so to the process. Just read the logs and followed the bouncing ball to resolution.