/ Claude Code v2.1.128

Auto mode fallback now suggests /compact when classifier context is too large, and stage-2 classifier errors say retrying often succeeds. Evidence: Auto mode fallback messages (search for "Auto mode classifier transcript exceeded context window — falling back to manual approval (try /compact to reduce conversation size)" and "Stage 2 classifier error - blocking based on stage 1 assessment (usually transient — retrying often succeeds)")

Voice input now pauses after repeated early failures instead of repeatedly starting failing sessions. Evidence: Voice circuit breaker (search for "Voice input is failing repeatedly and has been paused")

Remote egress gateway environments now propagate Google Cloud auth and CA certificate variables, improving GCP tooling inside proxied remote sessions. Evidence: GCP proxy environment propagation (search for "CLOUDSDK_AUTH_ACCESS_TOKEN" and "CLOUDSDK_CORE_CUSTOM_CA_CERTS_FILE")

MCP configuration now rejects reserved internal server names with clearer guidance. Evidence: Reserved MCP name validation (search for "is a reserved MCP name" and "Rename this server in your MCP config")

GitHub PR status fetching drops mergeStateStatus from the GraphQL fragment and adds REST status-list fallback strings, reducing reliance on a fragile PR field. Evidence: PR status query change (search for "fragment pr on PullRequest" and "[ghPrStatus] REST list")

How sure we are

One source agreesOne thing we can check says the same as this entry.

Anthropic's release notes agreeAuto mode: when the classifier can't evaluate an action, the error now includes a hint (retry, /compact, or run with --debug)

See this entry in the whole of v2.1.128 →

The build it came inv2.1.128

4 May 2026 · 10 entries, this one is #10.

Either side of it

v2.1.126Older
v2.1.129Newer

Open the release →

Names in this entry

slash/compact
Free up context by summarizing the conversation so far. Optionally pass focus instructions for the summary. See how compaction handles rules, skills, and memory files
envCLOUDSDK_AUTH_ACCESS_TOKEN
gh, aws, gcloud, bq and gsutil get placeholder credentials so they authenticate through the proxy instead of failing.
envCLOUDSDK_CORE_CUSTOM_CA_CERTS_FILE

Anthropic's note

Upstream's own release notes for v2.1.128 name something this entry names, so the two are probably about the same change. Probably: the pairing is made on a shared name rather than on the words around it.

Auto mode: when the classifier can't evaluate an action, the error now includes a hint (retry, /compact, or run with --debug)

Is this right?