Step 1: Move any Bitcoin Cash you have in the wallet out of the app
Step 2: Install the mainnet release
Step 3: Open a terminal/command prompt and enter the following command based on your operating system (the entire command is one line if even if Github displays it as two).
Mac:
/Applications/OpenBazaar2.app/Contents/Resources/openbazaar-go/openbazaard convert -d /Library/Application Support/OpenBazaar2.0-bitcoincash bitcoincash
Windows (make sure to replace [Username] with your actual username):
C:\Users\[Username]\AppData\Local\OpenBazaar2\app-2.1\resources\openbazaar-go\openbazaard.exe convert -d C:\Users\[Username]\OpenBazaar2.0-bitcoincash bitcoincash
Linux (make sure to replace [Username] with your actual username):
/usr/lib/openbazaar2/resources/openbazaar-go/openbazaard convert -d /home/[Username]/.openbazaar2.0-bitcoincash bitcoincash
If everything executed correctly you should see a prompt asking you if you want to continue and you'll need to enter y
.