rails和ruby gems最新版本

Question

This is my gem gem file as you can see I use outdated version of rails and may be ruby and may be something else. This happened because I Followed Michel's Hart tutorial and took this gems from there.

source 'https://rubygems.org'
ruby '2.0.0'
#ruby-gemset=railstutorial_rails_4_0

gem 'rails', '4.0.2'
gem 'bootstrap-sass', '2.3.2.0'
gem 'sprockets', '2.11.0'
gem 'bcrypt-ruby', '3.1.2'
gem 'faker', '1.1.2'
gem 'will_paginate', '3.0.4'
gem 'bootstrap-will_paginate', '0.0.9'
gem 'ffaker'
gem 'carrierwave', '~> 0.9'
gem "font-awesome-rails"
gem 'sprockets-rails'
gem 'rest-client'
gem 'blogo'

group :development, :test do
  gem 'sqlite3', '1.3.8'
  gem 'rspec-rails', '2.13.1'
end

group :test do
  gem 'selenium-webdriver', '2.35.1'
  gem 'capybara', '2.1.0'
  gem 'factory_girl_rails', '4.2.1'

end


gem 'sass-rails', '4.0.1'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.1'
gem 'jquery-rails', '3.0.4'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'

group :doc do
  gem 'sdoc', '0.3.20', require: false
end

group :production do
  gem 'pg', '0.15.1'
  gem 'rails_12factor', '0.0.2'
  gem 'heroku-deflater'
end

Hello,

On Feb 24, 2016, Ruby 2.0.0 security maintenance will reach its end-of-life. When this happens, Ruby 2.0.0 will no longer receive security updates. We recommend that you upgrade your app to a supported Ruby version, eg 2.2.4, to ensure that your application is running in a secure environment.

So which version of the ruby and rails do you suggest to put into my gemfile?

Answer 1

I would put the most current stable rails and ruby versions. at this point that would be ruby '2.3' and rails '4.2'

Answer 2

At the time of writing most current ruby supported on heroku is 2.3.0. To run rails on 2.3 without warnings about some cyclic dependencies you need rails 4.2+, but note that some things changed from 4.0 to 4.2 and you may have to do a migration, see guide on that