- Buildkite CLI now emits OSC 7501 status codes so supported terminals can show spinners and notifications for command progress, waiting, success or failure
- Applies to bk preflight, bk build watch, auth login prompts, artifact/download/package commands; auto‑enabled when stderr is a terminal and can be disabled via BUILDKITE_PROGRAM_STATUS=false
- No configuration required and terminals that don’t support the draft protocol simply ignore the messages