Redmine installs csv gem since r17245 as a workaround for a bug of csv 1.0.0 which is bundled with Ruby 2.5 (see #28112). But in Ruby 2.6, installing the gem is not necessary because the bundled csv gem was updated to 3.0.
git-svn-id: http://svn.redmine.org/redmine/trunk@17696
e93f8b46-1217-0410-a6f0-
8f06a7374b81
gem "roadie-rails", "~> 1.3.0"
gem "mimemagic"
gem "mail", "~> 2.7.1"
-gem "csv", "~> 1.0.2" if RUBY_VERSION >= "2.3"
+gem "csv", "~> 3.0.1" if RUBY_VERSION >= "2.3" && RUBY_VERSION < "2.6"
gem "nokogiri", "~> 1.8.0"
gem "i18n", "~> 0.7.0"