Updating ?

hi guys new here i currently run Reshade on euro truck simulator 2 through steam, ive had it running for a long time now and ive just realised there is a new version of reshade so im asking can anyone tell me how to install the new updated version i cannot remember its been that long haha, im curtrently running 0.18.0.833 by crossaire

do i have to delete old files ?
if so where are they ?
step by step on what to do would be really helpful
thanks in advance