You would need to pay shipping on orders under 35$ - previously 25$ was the threshold. With some exceptions that require shipping be paid no matter what prime was there to give you two day shipping on all orders at no extra cost. Now they have prime video, prime gaming, prime music, and prime reading as part of it aswell. All of which have were some nice added value to anyone already paying to get the shipping. Although prime video now has ads, music and reading are really just a worse version of their subscriptions for those services - amazon music and Kindle unlimited.

Basically if you have frequent small orders on Amazon it might be cheaper to pay the monthly sub than to pay for shipping. For most people it’s really not worth it, either because you don’t place enough orders or they would meet the threshold for free shipping anyway.