how upgrade

English:Fess
1

(from github.com/MajidSafari)
I use Fess 10.3

I changed some files such as *.config , and crawling Website and …

would you please help me to use Fess 10.3.1

what should I do ?

2

(from github.com/marevol)
See http://fess.codelibs.org/10.3/install/upgrade.html