Recurly is on a path to support 3DS 2.0 as a part of our overall plan for meeting the PSD2 mandate. We are in active discussions with all of our gateways, specifically gateways acquiring in Europe, to find the best solution for our merchants. Realistically, this lies at the gateway level, yet we are still discussing our support plan.
Please see our blog here for additional information. In addition to our blog, we also have our documentation here that shares more insight regarding this transition.
We also recommend that you reach out to your payment gateway with any additional questions you may have regarding this and to determine if there are any requirements that need to be met on their end.