We have Bugzilla 2.20.1 installed(pretty old) which is running on production server. We are planning to have migration to the new version. The following are the version which we have installed on server.
OS : Debian Sarge 3.0
Mysql : mysql-server-4.0
PHP : php4
Apache : apache2
Bugzilla : 2.16 (Installed using apt-get)
Please share the document if you have any.
Thanks in Advance... :-)