Hello,
For those following along with Rails 7 upgrade you can tell we’ve gotten close and today we feel that we’re ready. While you may still see some issues in nightly, at this point we’d like to roll forward. Otherwise we’ll have too little time until the holidays and if we miss that, we’re getting too late in the release cycle.
If you maintain a plugin that needs work, have a look a the various plugins that have already been updated. The official guide, Upgrade Rails From 6.1 to 7.0 - FastRuby.io | Rails Upgrade Service and Rails Upgrade: From 4.0 to 6.1 to 7.1 and Ruby 2.0 to 3.0 to 3.1.3 | by Ali Ahmad | Medium are what we used.
Rails 7.0 is a bit stricter in Zeitwerk than Rails 6.1 and explicit require statements are a red flag. Also changing the autoload paths is a bad sign. A great reference to start is:
Another common change is the deprecation of errors[:field] << my_error and instead you need to use errors.add(:field, my_error).
You may see broken nightly packages for a bit. If you do, please share it here or on Matrix.