I’d like this to be a reasonably detailed overview of how does the upgrade process in Rails look like in general, but with a strong emphasis on Rails 5.2 > 6 upgrade part (RC1 being the latest release). I’ve already seen a number of great posts describing the list of changes that awaits us in Rails 6, so I will skip this entirely and will focus solely on the upgrade.

I’d like this to be a reasonably detailed overview of how does the upgrade process in Rails look like in general, but with a strong emphasis on Rails 5.2 > 6 upgrade part (RC1 being the latest release). I’ve already seen a number of great posts describing the list of changes that awaits us in Rails 6, so I will skip this entirely and will focus solely on the upgrade.