Rails upgrade checks for 2 October 2026
Check the Ruby requirement, replace dynamic route segments carefully, and test validation error consumers against the exact Rails source you plan to use.
Tag: Rails upgrades
Testing a Rails upgrade in CI without hiding failures
A runnable Rails CI fixture exposes dependency mismatches, misleading job assertions, schema drift and shared test state, with failures and repairs recorded.
Ruby 3.3 to 3.4 before your next Rails upgrade
A tested Ruby upgrade with Rails held fixed explains bundled gems, chilled strings, parser tooling and output-sensitive tests, with a downloadable reproduction.
Rails 7.2 to 8.0 without replacing your stack
A generated Rails 7.0 application carried through 7.2 to 8.0 shows which code and defaults need attention while its asset pipeline, jobs, cache and authentication stay in place.
Active Storage libvips checks before deployment
A patched Active Storage bundle can still fail against an older native library. Check package availability, the deployed image and the library Ruby actually loads.
Rails upgrade checks
A passing request and successful boot can miss an unchanged upsert value or absent streaming headers. Four checks drawn from the 18 September Rails update.
Rails support calendar: 2026–2027 deadlines explained
The Rails support calendar separates bug fixes, security support and runtime requirements. Verified dates and package checks explain what each deadline requires.