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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.

All of v2.1.235 Home All releases olderv2.1.234 v2.1.236newer
Claude Code v2.1.235

Artifact relay allows subscribe and unsubscribe calls

Under the hood
Useful2 Signal4
Artifacts Notable

The artifact relay now forwards subscribe and unsubscribe calls, and answers can carry a reply id.

What

The list of routes the artifact relay will forward gains a subscriptions family, POST /subscribe/{slug} and POST /unsubscribe/{slug}. Alongside it, artifact responses must now carry a strict ISO-8601 created_at rather than any non-empty string, and the summon-answer check returns a structured result that can carry a follow-up reply id.

Evidence

POST /subscribe/{slug}

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

See this entry in the whole of v2.1.235 →