Rails 4.1 upgrade notes

readme.md

References:

http://edgeguides.rubyonrails.org/upgrading_ruby_on_rails.html

http://edgeguides.rubyonrails.org/4_1_release_notes.html

http://edgeapi.rubyonrails.org/

Gemfile

gem 'rails', github: 'rails/rails'
gem 'arel', github: 'rails/arel'

To help find deprecations

ActiveSupport::Deprecation.behavior = :raise

Know issues

1. jquery-rails

   Bug: rails/jquery-rails#143

   Work around:

   gem 'jquery-rails', github: 'takkanm/jquery-rails', branch:' fix_action_view_require'

2. rspec

   You need a pre-release version to work with Rails master (credit: @kalv)

   gem 'rspec-rails', '~> 3.0.0.beta'

3. I18n warnning

   [deprecated] I18n.enforce_available_locales will default to true in the future. If you really want to skip validation of your locale you can set I18n.enforce_available_locales = false to avoid this message.
   

   Work around:

   gem 'i18n', '>= 0.6.9'

   # config/application.rb
   config.i18n.enforce_available_locales = true
   # If you set a default_locale, you must do it after here:
   # config.i18n.default_locale = :de