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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v2.1.251 Home All releases ←olderv2.1.250
Claude Code v2.1.251

Background sessions shut down on hangup when they own the terminal

You'll notice
Useful3 Signal2
Background Tasks

Background sessions now shut down cleanly when their terminal disappears.

What

SIGHUP used to be ignored outright by background sessions. Now, if the process owns the controlling terminal, it records the signal and shuts down properly instead of lingering after the terminal goes away.

Details
  • Conditional on owning the controlling terminal; other background sessions still ignore SIGHUP.
  • The shutdown is logged with the signal name and a flag noting the terminal ownership.
Evidence

shutdown_signal", { signal: "SIGHUP", bg_ctty: !0 }

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.251 →