lock_rails_version_gemfile

🔒 Lock Rails Version in Gemfile

Specifying a strict Rails version in your Gemfile ensures your application stays on a tested release and prevents unexpected changes when new Rails versions are released. Use the ~> operator to lock the major and minor version but still receive patch updates automatically.

# Gemfile
gem 'rails', '~> 6.1.4'

After updating the Gemfile, run:

bundle install

This will install Rails 6.1.x (where x ≥ 4) and update your Gemfile.lock accordingly.