We need assistance with updating a site from Drupal 8.3.7 to Drupal 8.5.5.
It is a fairly simple website with no custom development, but uses a few 3rd party modules downloaded from [login to view URL] (see attached).
I will assist with backing up the site and database prior to the update in case we need to roll back if something goes wrong.
Very good "real-time" communication prior and during the upgrade is very important.
We will also have to decide on a date and timeframe, as we will need to notify the client in advance when the site will be in maintenance mode.
We will supply SSH access to the site's home directory. Composer is installed.