browser field to package.json.import {Big}.main field in package.json.round function.Big.version number.-0 from valueOf for negative zero.Big.version.--experimental-modules flag.Big.E_POS to Big.PE, Big.E_NEG to Big.NE.null is passed to toFixed etc.TO_EXP_NEG and TO_EXP_POS as Big.E_NEG and Big.E_POS.files field in package.json instead.sub, add and mul aliases.toJSON method so serialization uses toString.Error.cmp method..1 and 2..abs method and replaced cmp with eq, gt, gte, lt, and lte methods.