Details on API versioning and backward compatibility
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Versioning

Changess may be made to any of our APIs without a change in version number, provided the change follows our backwards compatibility guidelines (see below). Different versions will be managed via a HTTP header indicating the version of the API that the client is using.

Requests with no version number, or an unmatched version number, will be treated as version 1.0 requests.

Backwards Compatibility

The following changes are considered to be backwards-compatible:

  • Adding new API endpoints; new endpoints are independent.
  • Adding new optional request parameters to existing API calls.
  • Adding new response properties to existing API calls. You should pay particular attention to this point if you are mapping your JSON responses to another programming language construct.
  • Changing of the property order in existing API responses.
  • Changing the length of object IDs (object IDs will never exceed 255 characters).
  • Changing the messages returned by validation or other error messages.
  • Output Encoding Rules are applied to some services and will be applied to all services in the future.