Follow Discord
Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.248 ·

Bash spawn failure details withheld on some connections

Bash spawn errors are hidden from the model on some connections and logged locally instead.

You'll notice New Features
JSON All of v2.1.248
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SessionsArea: what it touches
New FeaturesKind: in v2.1.248,
New FeaturesSection of the release
What

When a Bash command throws before producing any result, the underlying error text is no longer always shown to the model. On connections that qualify, the detail goes to the log at error level and the model sees a fixed replacement string instead.

Details
  • Replacement text is shell command failed (detail withheld on this connection).
  • The full detail is still recoverable from the local log.
Evidence

shell command failed (detail withheld on this connection)

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

See this entry in the whole of v2.1.248 →

Feedback