The ev.energy API is versioning. A new point version is released when breaking changes are made to the API. Previous versions of the API will continue to be supported, but will not receive new features.
You API client will be pinned to the current version when it was created. Each response from the API will include an EvEnergy-Version header that indicates the version that response came from.
A different version can be specified when making a request by setting the EvEnergy-Version header. If an invalid version number is requested, the server will respond with a 400 Bad Request error response.
At present, there is only a single version of the API: 2.0. The first version with breaking changes will be released as version 2.1.