v1.3.53

• Ctrl+C now cancels a running loop (e.g. while true; do echo 1; sleep 5; done), not just the one external command currently running inside it.
• Backgrounding a compound command (a subshell, loop, or group -- e.g. (while true; do ...; done) &) is now tracked as a job: jobs -l, kill %n, and wait all work on it, where before it ran as an untracked, unstoppable goroutine.