mruby-mruby/doc/mruby3.2.md

User visible changes in mruby3.2 from mruby3.1

The language

• Now a::B = c should evaluate a then c.
• Anonymous arguments *, **, & can be passed for forwarding.

Tools

mruby

• -b only specifies the script is the binary. The files loaded by -r are not affected by the option.
• mruby now loads complied binary if the suffix is .mrb.

mrbc

• Add --no-optimize option to disable optimization.

mrbgems

mruby-errno

• mruby-errno gem is now bundled.

mruby-class-ext

• Add Class#subclasses method.
• Add Module#undefined_instance_methods method.