This Week in Rails: August 28, 2026

Weekly roundup of Rails codebase changes includes the open-sourcing of lemans, the harness behind the Agents on Rails benchmark, plus four new models added (Sonnet 5, Terra, an open-weight Qwen, and an unnamed model). Framework changes cover Ractor safety fixes across ActionDispatch classes and reset_primary_key, a new unified config.active_record.schema_ignored_tables setting, a fix preventing an XSS vulnerability in generated markdown-link output, a new Herb HTML-aware ERB template engine, and an update letting translate's scope: option resolve relative i18n keys with a leading period. 25 contributors participated this week.

Source: https://world.hey.com/this.week.in.rails/this-week-in-rails-august-28-2026-94e8b9e6. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.