To get first access to retaining walls, make sure you have a Base II or III subscription before the launch. How can I get access to the new retaining wall module? The pricing tiers are subject to change, but existing users are guaranteed to be grandfathered in and get the best deal. Legacy StruCalc will be available at the same price, and is included in the Plus and Pro tiers. Existing users will not notice any change in features or loss of access. You bet! All Vitruvius subscriptions will be grandfathered in.