In 2.2.5, I see there are methods to get/set the min and max values for NumberField. I do not see this in 3.0-beta1. Is there a different want to do do this (and I'm not seeing it), is it missing functionality, or something else?
Take a look at the MaxNumberValidator and MinNumberValidator. Validation that doesn't otherwise affect the behavior of the field has been removed from the fields, and Field changed so that any number of validators can be added to it.