Need help with update to v1.4.7

I try to update to v1.4.7 but it doesn’t work. it’s hard to understand the update wiki.

I make a backup of my database and all files then i try to upload the new version and when i run the setup it show me the 404 error page.
to know i install invoice plane in sub directory and i try to edit .htaccess with sub directory name but the same problem.

Please is there someone explain to me how to update invoice plane step by step.?

Thank you!

is because the update url link is wrong

that above is for root installation or update

for others

in the update they tell you to do the
they for got to add the index.php in front of the setup