RFC-9111 style Cache-Control directives hit or miss

Hi, it’s zzak. Let’s explore this week’s changes in the Rails codebase.

Message from the Rails Foundation
While Rails World sold out quickly this year, a friendly reminder that the sessions will be recorded and published on YouTube quickly- the Opening and Closing Keynotes immediately, with all other sessions published shortly thereafter.
If you didn’t manage to get a ticket, this is a fantastic opportunity to check out some of the other Ruby events taking place this year: https://rubyconferences.org/

Add ActiveRecord::Result#affected_rows
The result returned from calling exec_query now provides a method to get the number of affected rows.

# Get the number of rows affected by the query:
result = ActiveRecord::Base.lease_connection.exec_query <<~SQL.squish
  INSERT INTO posts (title, body)
  VALUES ("title_1", "body_1"), ("title_2", "body_2")
SQL
result.affected_rows
# => 2

Drop vendored Trix files in favor of the “action_text-trix” gem
This change shouldn’t have affect on applications, but makes maintenance easier for the Rails team. Meaning that bug fixes or security patches to Trix no longer have to wait for a Rails release to be available for application developers.

Bump Trix to v2.1.15
Speaking of which, CVE-2025-46812 was fixed in the latest release of Trix. Please update your applications as soon as possible.

Only load from CGI when required for Ruby 3.5
By retiring CGI from Ruby’s Standard Library of bundled gems, Rails was updated to load the cgi/escape which is still supported without emitting warnings from the other parts of the gem.

Add support for Cache-Control request directives
This PR adds support for various cache control directives in requests to control how caching is handled by the HTTP client. Based on RFC-9111 which details strategies for max-age, max-stale, min-fresh, and no-cache.

def show
  if request.cache_control_directives.only_if_cached?
    @article = Article.find_cached(params[:id])
    return head(:gateway_timeout) if @article.nil?
  else
    @article = Article.find(params[:id])
  end
  render :show
end

You can view the whole list of changes here. We had 22 contributors to the Rails codebase this past week!

Until next time!