From: KOSAKI Motohiro Date: 2012-01-06T05:04:35+09:00 Subject: [ruby-core:41926] Re: [ruby-trunk - Feature #5826][Assigned] When the RUBY API_VERSION will be increased? > I think RUBY_API_VERSION should be 2.0.0 for Ruby2.0.0. > In other hand, some people might think it should stay 1.9.1 becouse Ruby2.0.0 will have backward compatibility with 1.9. Please just bump it up now. I can imagine people want to install both 1.9.3 and 2.0.0 a while.