OTRS Administrators, I was able to upgrade my OTRS installation from 2.3.1 to 2.3.4 without stepping on the files I had modified for my customer. I have OTRS installed on a Solaris 10 server. Here are the steps that I followed: 1. I downloaded the file otrs-2.3.4.tar.gz from http://otrs.org to the directory /lapps where otrs 2.3.1 is installed. 2. I "gunzipped" and "untarred" the file. OTRS 2.3.1 is in this directory as /lapps/otrs. 3. I ran the command 'dircmp -s -w 120 otrs otrs-2.3.4 > /tmp/otrsdiff'. This command does a directory comparison. The -s argument suppresses messages about identical files. The -w argument changes the width of the report from default 72 to 120 making it more legible. 4. The first part of the report shows which files are unique to the compared directories. I ignored the unique files in 'otrs' and copied the unique files from 'otrs-2.3.4' into 'otrs'. 5. The second part of the report shows which files are different between the two directories. Whenever I change a file in OTRS I make a backup of the original file with a datestamp and my initials added to the file, e.g. Ticekt.pm.20090204.db. I went through the second part of the report line by line. Whatever files in 'otrs' I had not backed up (and therefore never modified) I replaced with the files from 'otrs-2.3.4'. 6. I was left with six files that I had modified that were 'different' in 2.3.4. I ran the 'diff' command between the 'otrs' and 'otrs-2.3.4' files. If the only difference between the files was my modifications than I left the files alone. If there were changes in the 'otrs-2.3.4' file that were outside of my modifications than I carefully edited the 'otrs' file so that the 2.3.4 changes were included. Perhaps there is an easier way to upgrade but these steps worked for me. Kind regards, David Buice Infrastructure Specialist/SDC-INT 2032653 ITIL Foundation Certified EDS, an HP Company PSIC Operations 7000 Chicago Rd. Warren, MI 48092-1663 Mailstop 430-202-380 Tel: +01 586 575-4525 Fax: +01 586 575-0090 Mobile: +01 248 249-9122 E-mail: david.buice@eds.com We deliver on our commitments so you can deliver on yours.