Issue #17121 has been updated by Earlopain (Earlopain _). Status changed from Open to Closed Removed in https://github.com/ruby/ruby/commit/12a121cc0f7f5b438388288383a7b8b9baf3e2fe ---------------------------------------- Feature #17121: Remove ENV#index https://bugs.ruby-lang.org/issues/17121#change-117886 * Author: S_H_ (Shun Hiraoka) * Status: Closed ---------------------------------------- `ENV#index` is deprecated since `ruby-1.9.0-0`. So, remove it. ```bash root@8785b339158a:/all-ruby# env ALL_RUBY_SINCE=ruby-1.8 ./all-ruby -e 'ENV.index("RUBY")' ruby-1.8.0 ... ruby-1.8.7-p374 ruby-1.9.0-0 -e:1: warning: ENV.index is deprecated; use ENV.key ... ruby-2.7.0-rc1 -e:1: warning: ENV.index is deprecated; use ENV.key ruby-2.7.0-rc2 -e:1: warning: ENV.index is deprecated; use ENV.key instead ... ruby-2.7.1 -e:1: warning: ENV.index is deprecated; use ENV.key instead ``` pull request: https://github.com/ruby/ruby/pull/3415 -- https://bugs.ruby-lang.org/