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Pull request overview
This PR upgrades the application to Rails 8 and aligns the repository’s dependencies, configs, and static error pages with the Rails 8 defaults and ecosystem changes.
Changes:
- Upgrade Rails from 7.2.x to 8.0.x and update locked gem versions accordingly (including updating
mitlibraries-themeto a Rails 8-compatible branch). - Refresh Rails public error pages (400/404/422/500/406) and update the app icon SVG.
- Adjust runtime/config defaults for Rails 8 (Puma Solid Queue plugin toggle, environment config tweaks, parameter filtering additions, and bin script updates).
Reviewed changes
Copilot reviewed 15 out of 20 changed files in this pull request and generated 9 comments.
Show a summary per file
| File | Description |
|---|---|
| renovate.json | Expand Renovate allowed version ranges for Ruby and Rails upgrades. |
| README.md | Update development notes (and should document new runtime ENV introduced in this PR). |
| Gemfile | Bump Rails requirement, update theme source, remove obsolete pins/tools. |
| Gemfile.lock | Reflect Rails 8 and dependency updates. |
| config/application.rb | Load Rails 8 defaults and minor syntax update. |
| config/puma.rb | Add optional Solid Queue-in-Puma plugin toggle. |
| config/environments/development.rb | Update development caching/logging defaults for Rails 8. |
| config/environments/test.rb | Update test environment defaults (static file server headers, etc.). |
| config/environments/production.rb | Update production defaults (SSL assumptions, caching headers, deprecation reporting, etc.). |
| config/initializers/filter_parameter_logging.rb | Add additional sensitive parameter filters (cvv/cvc). |
| config/initializers/assets.rb | Remove commented boilerplate. |
| public/400.html | Add custom static 400 error page (Rails 8-style). |
| public/404.html | Replace default 404 page with custom static page. |
| public/406-unsupported-browser.html | Replace default 406 page with custom static page. |
| public/422.html | Replace default 422 page with custom static page. |
| public/500.html | Replace default 500 page with custom static page. |
| public/icon.svg | Update icon geometry/size. |
| bin/setup | Start bin/dev by default after setup (unless --skip-server). |
| bin/dev | Add a minimal dev runner invoking rails server. |
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jazairi
approved these changes
Jul 15, 2026
jazairi
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Seems like we'll need to upgrade Devise to fix the deprecation warnings, but that feels like a problem to fix before 8.2, not in this PR. Otherwise, all seems well with this, both locally and in the PR build.
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@jazairi Correct on Devise, I meant to note that and forgot sorry! |
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Developer
our guide and
all issues introduced by these changes have been resolved or opened as new
issues (link to those issues in the Pull Request details above)
Code Reviewer
(not just this pull request message)
Requires database migrations?
NO
Includes new or updated dependencies?
YES