Complex sentence: The change gave all users of free accounts 1 TB of storage, and discontinued the "Flickr Pro" account option for new users, replacing them with higher-priced "Ad Free" and "Doublr" accounts.
Split into simpler sentences: The change gave all users of free accounts 1 TB of storage, and discontinued the "Flickr Pro" account option for new users. The update also gave users the option of higher-priced "Ad Free" and "Doublr" accounts.