see also version independent topics.

• Status: developing
• release manager: naruse
• ABI Version: 3.0
• GitHub Roadmap: https://github.com/ruby/ruby/milestone/1

• bump version.h to 2.8.0
  • done at 537a1cd5a97a8c5e93b64851abaab42812506f66, 2019-12-25
• bump version.h to 3.0.0
  • 21c62fb670b1646c5051a46d29081523cd782f11 at 2020-08-31
• released preview1
  • https://www.ruby-lang.org/en/news/2020/09/25/ruby-3-0-0-preview1-released/
• released preview2
  • https://www.ruby-lang.org/en/news/2020/12/08/ruby-3-0-0-preview2-released/
• release rc1
  • https://www.ruby-lang.org/en/news/2020/12/20/ruby-3-0-0-rc1-released/
• release 3.0.0
  • https://www.ruby-lang.org/en/news/2020/12/25/ruby-3-0-0-released/

• without baseruby
• ruby-build
• cross compile