The new wording says your subscription renews at the "introductory and other rates indicated, subject to future price increases" when your current term ends. That makes clear the low starter price can rise later. It also covers "your payment method" generally rather than a credit card you specifically indicate, and the old promise that the charge would land in a set 0-to-14-day window before your term ended is no longer in this clause.
“You authorize us to automatically charge your payment method on a recurring basis at the introductory and other rates indicated, subject to future price increases at the expiration of your then current subscription term”
What you can do — Note your renewal date and check your statement around it. If you don't want to keep paying at a higher rate, call customer service at 1-800-872-0001 to cancel before the renewal date — the page says there are no credits, refunds, or prorated billing for cancelling mid-period. New York residents can cancel within 14 days after a price increase takes effect and get a prorated refund.