Upgrades: changing subscription months to years?

Where in the codes do I have to change in order to make:

1 month, 3 months, and 1 year


6 months, 1 year, and 2 years?



    It would probably be easier to change it to 6, 12, and 24 months. You can call it one and two years when describing it to users.

    Unfortunately it's not a super simple task to change out these periods. You'll need to scroll through upgrades-framework.php and change the lines as you come across them. Do this before you install the plugin because even the db tables have collumns named according to the original periods (package_cost_one, package_cost_three, package_cost_twelve).

    The good news is that everything you need to change should be in that one file.