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mem0 2.1.0 makes agent memory calls carry a full caller chain, and ships plugins for six coding agents in one hour
mem0 v2.1.0 (2026-09-18 11:11 UTC) adds three set-once surface-identity headers: `X-Mem0-Source` names the surface, `X-Application` the host app, and the append-only `X-Mem0-Client` carries `name/version` per layer outermost first, so a plugin calling the SDK reports the whole chain rather than only the last speaker (#7326). The stack is bounded by dropping whole entries rather than slicing characters, because truncation could sever an identifier mid-name and the platform parsed the fragment as a real client. Between 11:11 and 11:25 UTC mem0 also cut releases for openclaw, opencode, deepseek-plugin, pi-agent, ts and vercel-ai.
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