What's Changed

• Run tests without the C extension in CI by @eregon in https://github.com/ruby-concurrency/concurrent-ruby/pull/1081
• Fix typo in Promise docs by @danieldiekmeier in https://github.com/ruby-concurrency/concurrent-ruby/pull/1083
• Correct word in readme by @wwahammy in https://github.com/ruby-concurrency/concurrent-ruby/pull/1084
• Fix mistakes in MVar documentation by @trinistr in https://github.com/ruby-concurrency/concurrent-ruby/pull/1087
• Fix multi require concurrent/executor/cached_thread_pool by @OuYangJinTing in https://github.com/ruby-concurrency/concurrent-ruby/pull/1085
• Use typed data APIs by @nobu in https://github.com/ruby-concurrency/concurrent-ruby/pull/1096
• Add Joshua Young to the list of maintainers by @eregon in https://github.com/ruby-concurrency/concurrent-ruby/pull/1097
• Asynchronous pruning for RubyThreadPoolExecutor by @joshuay03 in https://github.com/ruby-concurrency/concurrent-ruby/pull/1082
• Mark RubySingleThreadExecutor as a SerialExecutorService by @meineerde in https://github.com/ruby-concurrency/concurrent-ruby/pull/1070
• Allow TimerTask to be safely restarted after shutdown and avoid duplicate tasks by @bensheldon in https://github.com/ruby-concurrency/concurrent-ruby/pull/1001