4.17.0

4.17.0

• Workflow code can use ctx.logger() to send new-execution observations to
  the application's tracing subscriber with namespace/workflow/run identity.
  Committed replay, query reconstruction and discarded invocations stay quiet.
  ctx.replay_state() exposes the live consumed-history boundary. Logs from
  uncommitted task attempts may repeat on retry; handlers must be nonblocking.