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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.

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Claude Code v2.1.228

Bundled Anthropic SDK picks up beta resources

Under the hood
Useful2 Signal5
API Client Notable

The bundled API client gained clients for deployments, thread events, dreams, tunnels and memory-store versions.

What

New client resources are compiled in: deployments and session thread events with streaming (managed-agents-2026-04-01), dreams (dreaming-2026-04-21), tunnels and tunnel certificates (mcp-tunnels-2026-06-22), memory-store versions including redaction (agent-memory-2026-07-22), a binary skill-version download, and an MCP OAuth validation call on vault credentials. Messages, batches and token counting lift a user profile id field into a header.

Evidence

anthropic-user-profile-id

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 v2.1.228 →