mruby 3.0.0 We are announcing the first stable release of mruby 3.0 series - mruby 3.0.0. With mruby 3.0, the memory used of the mruby VM has been significantly reduced, and we have succeeded in significantly saving memory. Previous versions required several hundred KB of RAM, but mruby 3.0 can launch an application with about 100 KB of RAM. Describes the new features and changes in mruby 3.0. The