A capability statement can change over time.

• A. True
• B. False
• C. Sometimes
• D. Not at all

Answer: (A)

Capabilities described by a capability statement are not fixed; they reflect what a server can do at a given time, and that can change as the server evolves. A FHIR server might add new resources, support additional interactions (like read, history, or search options), introduce new search parameters, expose new operations, or update security requirements. It might also deprecate or retire features as tooling, versions, or policy updates occur. Because these changes happen over time, the capability statement can be updated and re-published to reflect the current conformance of the server. As a result, clients should fetch or refresh the capability statement when needed to ensure they know the exact capabilities available for any given interaction.