- multi-precision integer
- WORD_BOXING: Pack some floats in
mrb_value - NAN_BOXING: Allow
MRB_INT64along with NaN boxing - keyword arguments à la Ruby3.0 (update
OP_SEND) - parser and code generator independent from
mrb_state(picoruby?)
begin ... end while condto behave as CRuby- special variables ($1,$2..)
- super in aliased methods