How to upgrade your Rails app to Ruby 3.1 with rbenv

Ruby 3.1 release documentation
  • Upgrade rbenv
  • Install Ruby 3.1.0
  • Set local Ruby version
  • Update Gemfile
  • Debug gem
  • New features
    • 1. Upgrade rbenv
    To include Ruby 3.1 as one of the available install options, first upgrade ruby-build:
    brew update && brew upgrade ruby-build
    See all available versions with rbenv install --list.
    Ruby 3.1.0 should return in the result.
    2. Install Ruby 3.1.0 
    rbenv install 3.1.0
    3. Set local Ruby version 
    rbenv local 3.1.0
    You can verify that the .ruby-version file in the root of your folder now lists version 3.1.0.
    4. Update Gemfile 
    # old
ruby "3.0.3"

# new
ruby "3.1.0"
    bundle install
    You might run into the error cannot load such file -- net/smtp (LoadError). net-smtp has been removed from the default gems in ruby 3.1. As Action Mailbox depends on net/smtp temporarily add to your gemfile until the mail gem includes it as a dependancy.
    gem "net-smtp", require: false
    5. Debug gem
    The debug gem is the new preferred debugger. Alternative gems like pry are no longer necessary. Rails 7 includes the debug gem by default.
    Gemfile:
    group :development, :test do
  # old
  gem 'pry'
  # new
  gem "debug", ">= 1.0.0"
end
    Learn more in this video
    6. New Features
  • Error highlighting examples
  • IRB auto-completion
  • Typeprof examples / vs code extension / video
  • Short Syntax Hash Values examples

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    Categories:

    Ruby

    Tags:

    RubyMigrationTutorialRails

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    How to upgrade your Rails app to Ruby 3.1 with rbenv