Upgarde Mattermost to the last version

Hi,
I need to know how can i upgrade mattermost 4.0 to to the last version without deleting and every thing in the documentation,
It’s like redoing the installation work from the beginning.
I need an easy way,
Thank you for you help

Hi @marouane,

I’m not sure there is a better way to upgrade to the latest version without following the documentation.