New required fields created_at and modified_at added to LLMObs interaction schemas
BreakingBreaking change
This is a breaking change — integrations that rely on the affected behaviour will need updates before the change rolls out.
What changed
Two new fields, created_at and modified_at (both date-time strings), have been added as required properties to the LLMObsTraceInteraction and LLMObsTraceInteractionItem schemas. Because these fields are marked required, any client code that constructs or validates these objects must now supply both timestamps, otherwise requests or deserialization will fail. Clients that only read these objects (e.g. parsing API responses) may be unaffected if the server always returns them, but strict schema validators or typed SDK models will break on existing payloads that lack the fields.