This is guide help you upgrade from PhpFox V3 to V4

Warning: Backup your database & source code before upgrade.

Move Old ./file/* directory to ./PF.Base/file/*

command line: sudo cp -rf ./file/* ./PF.Base/file/

Edit Version Setting

Edit ./PF.Base/file/settings/version.sett.php

<?php return array ( 'version' => '4.x.x', 'timestamp' => 1444373810, );

Change version from 4.x.x to the old version etc: '3.x.x'

Overwrite /PF.Base/file/settings/server.sett.php  by old setting file ./include/setting/server.sett.php

Keep following the upgrade wizard until process finishes.

February 9, 2018