Version 3 of the REopt API is currently under development.
The inputs and outputs for optimization jobs are revised in v3 for clarity and ease-of-use. Please see https://github.com/NREL/REopt_API/wiki/new-job-endpoint for more information.
Information for developers regarding v3 can be found at https://github.com/NREL/REopt_API/wiki/new-job-endpoint