Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.257 ·

Agent-proxy startup probe failure no longer fatal once a tunnel opened

A failed agent-proxy startup probe is now only a warning if a tunnel already opened, rather than blocking all traffic.

TierYou'll noticehow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaAgent Proxywhat it touches
KindBug Fixesin v2.1.257,
You'll notice

A failed agent-proxy startup probe is now only a warning if a tunnel already opened, rather than blocking all traffic.

If the hosted agent-proxy's startup reachability probe fails but a CONNECT tunnel has already opened successfully, the failure is now logged as a warning instead of being treated as a fatal startup error that blocks all traffic. The failure message also now describes per-CONNECT dial retries rather than the old wording.

See this entry in the whole of v2.1.257 →