[otrs] Update to version 2.3.3 to 2.4

Good morning, I have the version 2.3.3 of OTRS installed and working a long time in my company, I need to upgrade to version 2.4 (most current). What steps do I need to do to upgrade? What file do I need a backup for security? Use Suse Linux and the database in Mysql. Thanks, Rodrigo Corrêa _________________________________________________________________ Deixe suas conversas mais divertidas. Baixe agora mesmo novos emoticons. É grátis! http://specials.br.msn.com/ilovemessenger/pacotes.aspx