You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.251,
Internal ChangesSection of the release
What
Shutting down a background worker now also checks for and kills the REPL process associated with it, so that process no longer outlives the worker it belonged to.
Evidence
UV(I.replPid, I.replProcStart)
Strings lifted out of the shipped bundle, so the claim above can be checked against them.