Generally, changes to the API interface and functionality will follow this policy as outlined above. However, breaking changes may still be made without introducing a new major version, if it is needed for continuous operation of Coin Metrics' services, for security reasons, or for other reasons, if following this policy is deemed to be infeasible. That may include, but is not limited to, the following: introducing or changing request rate limits, applying specific limits per specific API key, immediate disabling of specific methods or features, etc. Changes also can be made to this policy.