Langfuse

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1. v4.53.02026-10-06feat(ai-gateway): expose resolution context in response headers, spans and logs
2. v4.52.02026-10-06feat(trace-batch): bound batches by estimated weight and exclude oversized traces
3. v4.51.02026-10-05feat(mcp): support decision-model evaluators
4. v4.50.02026-10-02feat(web): show error id in tRPC error toast and include it in issue reports
5. v4.49.02026-10-01feat(web): add org-level ingestion overview tRPC route

• LangSmithTracing, prompt management, datasets and evaluations, with OpenTelemetry ingestion.Full replacement
• W&B WeaveTracing and evaluations of LLM calls, with SDKs for Python and JavaScript.Full replacement