Faster runs with concurrent memory updates and richer end-of-run events

Memory updates now occur in a background thread, reducing latency for users and UIs. We’ve also added events for run content completion and session summaries to make end-of-stream handling more reliable and predictable.

Details

Lower perceived latency by moving memory writes off the critical path
New events simplify UI finalization, logging, and analytics
Backward-compatible; adopt new events as needed

Who this is for: Teams optimizing UX responsiveness and building robust streaming UIs or observability.