Ruby

Thread.exclusive is deprecated since 2.3.

% docker run -it --rm rubylang/all-ruby env ALL_RUBY_SINCE=ruby-1.8 ./all-ruby -r thread -e 'Thread.exclusive{}' ruby-1.8.0 ... ruby-2.3.0-preview1 ruby-2.3.0-preview2 Thread.exclusive is deprecated, use Mutex -e:1:in `<main>' ... ruby-2.4.0-preview1 Thread.exclusive is deprecated, use Mutex -e:1:in `<main>' ruby-2.4.0-preview2 Thread.exclusive is deprecated, use Thread::Mutex -e:1:in `<main>' ... ruby-2.7.0-preview1 Thread.exclusive is deprecated, use Thread::Mutex -e:1:in `<main>' ruby-2.7.0-preview2 -e:1: warning: Thread.exclusive is deprecated, use Thread::Mutex ... ruby-2.7.1 -e:1: warning: Thread.exclusive is deprecated, use Thread::Mutex