Any reason why the requirements can't be reduced to Rails 6.x?

[timvoet]

I'm in the process of upgrading an older rails app from 4 to 8, but doing so incrementally. I'm currently at 6.1, and would have loved something like this to be able to manage any errors, while i ensure full compatibility, before moving onto Rails 7.

[AnjanJ]

Hi @timvoet, thanks for the interest!

The main reason for the Rails 7.0+ requirement is architectural — the gem is built on the Rails 7.0+ Error Reporter API (Rails.error.subscribe / Rails.error.report). This is what allows it to automatically capture errors from controllers, background jobs, Rake tasks, and anywhere else in the app through a single integration point. That API simply doesn't exist in Rails 6.x, and backporting it would mean reimplementing the error capture layer with a fundamentally different approach.

There's also a dependency on turbo-rails ~> 2.0 (which requires Rails 7.1+) for real-time dashboard updates, though that's a softer constraint.

The good news is that Rails 6.1 → 7.0 is generally one of the smoother upgrades in the Rails version ladder. Once you're on 7.0+, the gem should work well for monitoring errors through the rest of your upgrade journey to Rails 8.

Hope that helps, and good luck with the upgrade!