[lunadam]

The software you are looking for is called https://en.wikipedia.org/wiki/Product_data_management
Pokemon Infinite Fusion
This allows you to not only perform version control of your CNC programs but it also links the programs back to a drawing REV and the matching model files.

Modern CNC controls don't use "DNC" anymore. They should have Ethernet and a file transfer protocol.

Some controls allow you to remotely control what is in memory but many do not, so for the rest you must control by policy. You need to train the operators to get the latest version of the cutting programs on every setup and delete everything at teardown. This ensures they are always using the current program.

I wrote my own custom software to manage CNC program files to make it easy for the operators to copy all the files they need for a job. If you don't have a computer programmer in your shop you can buy solutions off the shelf if you look for DNC\MDC\MES software providers.

thanks