+ Added an export and sync command.
+ Added a category system to organize vouchers
+ Fixed various bugs

/vouchers export will export any created voucher into an editable json file
/vouchers sync will override/import database vouchers with the json file data.

https://docs.tweetzy.ca/official-plugins/vouchers/export-and-syncing

The file editing was added since a lot of people were asking for it, that being said, the GUI system is still the intended way to edit/create vouchers, if you don't know how to edit a json file I suggest you don't as I'm not gonna provide support if you screw it up.