Joyce, can I ask what email address you are using to send us questions? firstname.lastname@example.org is generally the fastest way to get to someone with a sales/customer service related question.
Customers receive free upgrades if a new version comes out within 30 days. After that, you are given an upgrade discount typically around 50% off the retail price through their upgrade center. The Extension Library activation is currently discounted and might be a good opportunity for you to have the latest and greatest when it ships.