session.update.done is not retained or replayed. There is no guaranteed global order between these event types. Handle unfamiliar reasons without failing.
The terminal result for the opening.
Event fields
string, server-generated event ID.
required
always session.bootstrap.opening.done.
required
bootstrap.opening.done`.
completed, cancelled, | failed.
required
string, present only for cancelled | failed results, such as superseded | session_shutdown.