Serv-U 4.x 版可以升級為最新版而不影響設定嗎？

可以直接下載最新版來執行升級，而且不會影響原本的設定。

User can upgrade directly from 4.x to 8.x with no loss of users or settings.

Thomas J. Parikka - Technical Support Engineer
http://www.RhinoSoft.com