[Koha] Koha upgrade version

[pandu rangaswamy]

Dear all,

I am running Koha 3.00.05.003 on Linux,
Perl interpreter:  /usr/local/bin/perl
Pear  Version 5.010001,
Pearl  @ INC     /usr/share/koha/lib
                       /usr/local/lib/perl5/5.10.1/i686-linux
                       /usr/local/lib/perl5/5.10.1
                      /usr/local/lib/perl5/site_perl/5.10.1/i686-linux
                     /usr/local/lib/perl5/site_perl/5.10.1
My SQL Version: mysql Ver 14.12 Distrib 5.0.45, for redhat-linux-gnu
(i686) using readline 5.0
Apache Version: Server version: Apache/2.2.3 Server built: Jan 21 2009 22:01:41

and would like to upgrade to the latest version 3.8.

Can someone provide me a guide to complete this task?

Thank you
Pandu.