Per the yargs docs, yargs.middleware(...) is intended to be used for argv transformations that should be run before a command is applied. applyConfig used to transform the object exported by builders. This is a bad idea. Instead, it now transform argv in the yargs middleware, just like sanitizeInputs was already doing.
Per the
yargsdocs,yargs.middleware(...)is intended to be used forargvtransformations that should be run before a command is applied.applyConfigused to transform the object exported bybuilders. This is a bad idea. Instead, it now transformargvin theyargsmiddleware, just likesanitizeInputswas already doing.