Last updated: 2 Apr 2026
Guidance for upgrades to Rails 8.1
This guide is intended as a supplement to our How to upgrade Rails guide, providing version-specific guidance not covered there.
bin/ci and config/ci.rb
These are in support of Rails’ new ‘local CI’ concept. Adapting this approach is likely to require some consideration around things like keeping this in sync with GitHub Actions, so it’s recommended to pursue this separately to upgrading Rails (if at all).
config/environments/production.rb
- Retain
config.assets.compile = falseif using Sprockets (via a gem).