Anthropic shipped message threads (beta): Claude Code now sends only new messages per turn, about 35% lower time to first token on 500k to 1M token requests
This story is from 2026-11-04. It is preserved in the archive; the latest stories are on the live feed.
Published Nov 2 on claude.com, so two days old, but I haven't seen it discussed much. Details: - New `thread` parameter on the Messages API, beta header `message-threads-2026-08-12`. The first request sends the full conversation and starts a thread. Later requests send only the new messages plus th…
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Timeline · 4 reports
- 2026-11-06 11:01 · DEV Community — AI
Claude Code Put Account Emails in User-Agent Headers. Stable 2.1.311 Lacks the Guard - 2026-11-06 08:22 · DEV Community — AI
Claude Code was mailing your email address to every website it visited: the User-Agent leak, the 5-month system-prompt issue, and the 5-point check - 2026-11-05 22:17 · Hacker News Front Page
Claude Code sends your email address to websites - 2026-11-04 02:07 · r/ClaudeAI
Anthropic shipped message threads (beta): Claude Code now sends only new messages per turn, about 35% lower time to first token on 500k to 1M token requests