"Ruby Core: Ruby 1.8.7-preview4 has been released". "Matz's Ruby Developers Don't Use RubySpec and It's Hurting Ruby". ^ a b Brian Shirai (31 December 2014).Ruby MRI is available for the following operating systems (supported Ruby versions can be different): In release 1.9.3, Ruby's License has been changed from a dual license with GPLv2 to a dual license with the 2-clause BSD license. Prior to release 1.9.3, the Ruby interpreter and libraries were distributed as dual-licensed free and open source software, under the GNU General Public License or the Ruby License. As a result of the limited uptake by the MRI developers, RubySpec project has been discontinued as of end of 2014. Ruby MRI 1.9.2 passed over 99% of RubySpec., MRI Ruby 2.2 crashed on one of the tests. The RubySpec project has independently created a large test suite that captures 1.8.6/1.8.7/1.9 behavior as a reference conformance tool. This version provides bug fixes, but also many Ruby feature enhancements. The 1.8 branch has been maintained until June 2013, and 1.8.7 releases have been released since April 2008. "Ruby" was named as a gemstone because of a joke within Matsumoto's circle of friends alluding to the name of the Perl programming language. Yukihiro Matsumoto ("Matz") started working on Ruby on February 24, 1993, and released it to the public in 1995.
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