Are you sure? From https://github.com/rubygsoc/rubygsoc/wiki/Ideas-List#mri-matz-ruby-interpreter https://github.com/rubygsoc/rubygsoc/wiki/Ideas-List#mri-mat.

Are you sure? From https://github.com/rubygsoc/rubygsoc/wiki/Ideas-List#mri-matz-ruby-interpreter https://github.com/rubygsoc/rubygsoc/wiki/Ideas-List#mri-mat... "List of ideas for improving Ruby during Google Summer of Code 2015", little summary: - Fine-grained locking (a.k.a. removing the MRI global lock) - JIT Compiler - Type System - New C Extension API - Cross-thread Fiber support