Release Notes: This release added optional separation of stdout and stderr (-E).
Release Notes: This is a small security bugfix to protect against other users in the system.
Release Notes: Now enqueuing will not block other queue operations, in the case of a full queue. The new -B parameter allows ts to fail enqueuing if the queue is full, instead of blocking.
Release Notes: This is a bugfix release, for a trouble introduced in the recent versions.