sbt/notes/2.0.0/cancel-discards-output.md

Cancelling a task discards its queued output

Previously, cancelling a task that was producing a lot of output (Ctrl+C from the thin client) stopped the task, but the server kept draining the already-queued output to the client for several seconds, so the cancel appeared not to take effect. The cancelled task's buffered stdout/stderr is now discarded on cancel, so output stops promptly. Control-plane messages and the next command's output are unaffected.