Happy Friday! This is Greg, bringing you the latest changes in the Rails codebase. It was a quiet week, but there are still noteworthy changes, let’s explore them.

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Rails

Rails codebase updates include: Rails.app.revision now checks ENV["REVISION"] before falling back to files or git; error pages in development now have clickable arrows to reveal stack traces; SQL queries are now passed to query log tags for debugging; and insert_all! gains a unique_by option for PostgreSQL and SQLite to specify uniqueness constraints, matching existing insert_all behavior.

This Week in Rails: February 6, 2026