In 5.2, environments were changed in a fundamental and non-backwards compatible way. CFunctions used to have environments, but now they don't. This also affecte

In 5.2, environments were changed in a fundamental and non-backwards compatible way. CFunctions used to have environments, but now they don't. This also affected equality when comparing between function values. In 5.4, they changed _the way that numbers behave_: > Literal decimal integer constants that overflow are read as floats, instead of wrapping around. Which, by the definition used for 5.3 being a fork, would also be a fork. It's a fundamental change of the entire numeric tower.