Same thing for me—4 years ago, Rails 4.2. Now on 6.0, work for 6.1 is wrapped up. I did just finish going from Ruby 2.7 to 3.3. Any particular issues you’re having, or just working through the process?
Don’t have the exact details on me but it was just the change for the method params hash thing. The stack trace seems to be pointing places that aren’t the source of the issue, just where it got triggered in some dynamic way.
Probably just need to spend more time understanding exactly what changed and how to convert stuff.
