Source Intelligence

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 v2.1.247 Home All releases olderv2.1.246 v2.1.248newer
Claude Code v2.1.247

Dead background terminal hosts are cleaned up rather than hung on

You'll notice
Useful3 Signal2
Background Tasks

Background sessions whose terminal process died are now killed and marked failed instead of hanging.

What

A background session whose terminal host process has exited but was never reaped is now detected, force-killed and marked failed, instead of leaving the session apparently alive.

Details
  • Reports a new telemetry event, tengu_bg_ptyhost_zombie, carrying the session short id, how it was reached, its state, its uptime in milliseconds and how many clients were attached.
Evidence

tengu_bg_ptyhost_zombie

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 v2.1.247 →