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RAG Pipeline Utils v3.9.1: Warnings on the Edge No Longer Throw

· 2 min read
Ali Kahwaji
Ali Kahwaji
Creator & Maintainer of RAG Pipeline Utils

A patch release: /edge on Cloudflare Workers without nodejs_compat no longer throws "process.emitWarning is not a function" for cached pipelines and cost estimates.

npm install @devilsdev/rag-pipeline-utils@^3.9.1

The edge fix​

This affects you if you import @devilsdev/rag-pipeline-utils/edge in a Cloudflare Worker without the nodejs_compat flag. Those Workers have no process object, so where the library meant to warn you, it failed instead: a cached pipeline with a component that has no cache key failed its run, and CostCalculator.estimate() for a model with no price threw.

Now you get the warning in console.warn, with its code, and the call carries on. The same goes for two other warnings: AnthropicConnector sending a request again without a temperature the model rejects, and GuardrailsPipeline when its retrieval guard was skipped. Nothing changes on Node.js.

A new look​

The docs site and the README have a new look, with new fonts and colours, and the Comparison page now lets you filter its table and compare one framework at a time.

The scoped packages, @devilsdev/rag-mcp-server and create-rag-pipeline are released at 3.9.1 too, unchanged apart from the version.

The full list is in the CHANGELOG.